COMPRESSION RING AND
OIL RING DESIGN ILLUSTRATIONS
Mahle Performance Piston Ring Sets
OEM & High Performance
Street Strip Race
RPM - RON'S PRECISION MACHINE, INC.
69 E. 580 N.
Santaquin, Utah 84655
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1-801-754-5338 or Toll free 1-866-700-5877 Contact us anytime 24-7 Hours 9-5 Monday-Friday |
| Call Toll Free to Order and Purchase Parts only at: 1-866-700-5877 |
| Engine Rebuild Kit and Parts Online Catalog. |
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Use Of Clevite® engine bearings & engine parts, MAHLE Original® piston rings & engine parts, and Victor Reinz® gaskets products in aircraft or other specialty equipment may be a violation of Local, State or Federal Regulatory Agency laws, rules and regulations. These products are intended solely for automotive applications. Under absolutely NO circumstances should these products ever be used in non-automotive applications including, without limitation, aircraft engines, medical equipment, atomic energy devices or reactors. “Federal, State and local laws restrict the removal, rendering inoperative, or in some cases the modification of factory installed emission devices or systems. California restricts the use of parts which could increase emissions in vehicles designed for use on public streets or highways. The sale or installation on emission controlled vehicles of certain emission control components not approved by the California Air Resources Board, which alter or modify the original design or performance of such vehicle’s emission control system is prohibited. Some of the parts listed and offered for sale in this Catalog . may fall within the above restrictions. Such parts are intended only for use on off-road vehicles competing in competitive events or on other types of vehicles which are exempt from the applicable emission control laws. Installation of these parts on vehicles subject to emission control laws may be prohibited.” MAHLE Aftermarket recommends that the applicable emission control laws be reviewed before considering the installation of add-on or modified parts. |
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MAHLE Original® performance piston rings are the most extensively tested and technically advanced piston rings in the industry. Driven by OE and performance engine builder’s requirements to reduce power cylinder friction and piston ring mass, while minimizing engine oil consumption and providing longer service life, all at higher power output levels, MAHLE Original piston rings lead the industry for the latest in piston ring technology. Current racing engines put a greater demand on piston rings than ever before by running at higher operating temperatures, higher cylinder pressures, and higher operating RPM. All of these factors have created a need for a piston ring that’s stronger, lighter, seals better, and resists breakage and wear under extreme operating conditions. The answer is the MAHLE Original® SAE 9254 high alloy steel compression rings. The added strength of steel, over cast iron and high strength ductile iron, allows for a reduction in ring cross section – both radial wall thickness, and axial height or width, without compromising the overall strength of the ring. Piston ring technology MAHLE has continued to prove the advantages of using steel compression rings in high tech racing engines. Today more engine builders prefer using steel piston rings over a cast or ductile iron ring because of MAHLE steel compression ring technology. Compared to ductile or grey iron the inherent strength of high alloy steel means there is less chance of piston ring breakage. Steel piston rings also provide a longer service life with a reduction in ring side wear and ring groove pound out. Only compression rings manufactured of steel can provide the tensile strength, hardness and fatigue resistance required to perform in today’s racing engines. The smaller cross section, permitted by the greater strength improves the ability of the ring to conform to a less than perfect cylinder bore and keep the piston ring sealed effectively against both the bottom of the piston groove and the cylinder wall. |
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SAE 9254 high alloy steel base material, with HV385 thermal spray
face coating, patented by MAHLE combine to create the ultimate
in performance piston ring technology. The unique mechanical,
physical, and chemical properties of SAE 9254 steel combine to
make the ultimate piston ring base material. • High tensile strength allows the piston ring to be used in smaller and lighter cross sections and still maintain structural strength, and torsional rigidity needed to seal and hold back extreme firing pressures • High yield resistance allows the piston ring to maintain strength and tension in high heat operating conditions of a high compression, and power adder application • Extended fatigue resistance increases cycle life and overall durability of the piston ring, increasing RPM expectations of the performance engine builder • Increased material hardness improves overall piston ring wear on all critical mating surfaces The reduced cross section piston ring is lower in mass, and more conformable to less than perfect bores. This makes more a stable piston ring at high RPM, and allows the ring to seal more effectively against both the bottom of the piston groove, and the cylinder wall. The reduced cross section also reduces both static and dynamic tension, therefore reducing friction and the corresponding parasitic loss. HV385 thermal spray face coating patented by MAHLE provides wear resistance, overall durability, and scuff resistance beyond that of any current ring face coating or treatment – in the performance industry. |
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MAHLE Original® HV385 High Velocity Oxygen Fueled (HVOF)
Thermal Spray Face Coating is designed, engineered, and manufactured
to withstand the extreme punishment of today’s high RPM
naturally aspirated, turbocharged, supercharged and nitrous oxide
assisted engines. The MAHLE patented HV385 ring face coating is= applied using an ultra-high temperature thermal spray process, fueled by pure oxygen and RP1 jet fuel. The resulting jet engine-like combustion event accelerates the molten material to supersonic speeds, spraying onto the face of the ring. This high temperature, high velocity stream of molten alloy face coating ceramic/metallic material creates a very dense and extremely well bonded coating on the ring face that outlasts even the most demanding operating conditions. Additionally, the HV385 thermal spray face coating provides unmatched strength, scuff resistance, and overall durability – not obtainable by any other piston ring face coating, or surface treatment in the industry today. The HV385 thermal spray face coated top rings feature micro-polished side and face sealing surfaces, minimizing friction, ensuring quick seating, and providing a uniform barrel face profile. |
| Balancing piston ring face wear and cylinder bore wear is necessary to achieve the long service life expectations of today’s high performance racing engines. The MAHLE HV385 thermal spray face coating improves ring face wear by over 50% without increasing bore wear. |
| High temperature, high firing pressure, and minimal lubrication operating conditions demand a delicate balance of piston ring material strength, and hardness, without creating a ring so tough it wears, or scuffs the cylinder bore and destroys the sealing surface. The MAHLE HV385 thermal spray face coating uses a patented blend of hard self–lubricating metal and ceramic alloys, along with an aerospace inspired application process, that work together to create a ring face coating with overall strength and toughness comparable to heat treatments like gas nitride, PVD and DLC, yet scuff resistant to the cylinder wall like moly based plasmas. |
| Coefficient of friction changes as surface speed and load change. In the graph above, the left side of the graph depicts a low speed / high load condition piston rings see approaching, and leaving TDC on the firing stroke. The right side of the graph depicts a high speed / low load condition piston rings see as piston speeds reach their peak at mid-stroke of each cycle, where the ring face rides up on the hydro-dynamic wave of oil film. The MAHLE patented HV385 thermal spray face coating, with micro-polished face, is the only face coating showing the lowest coefficient of friction in both operating conditions. |
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Top Compression Rings: The primary job of the top ring is compression
seal. The top ring plays a minor part in oil control. Since the
top compression ring is the closest to the combustion chamber,
it gets the brunt of the heat, protecting the second and oil
ring to a greater extent. Positive twist-barrel faced top compression rings are the most popular for performance applications. The barrel face provides instantaneous break-in, which is important for racing engines, and maintains contact with the cylinder wall as the piston rocks slightly at TDC and BDC. Dykes top rings are offered for various sizes and are used primarily in drag racing. The step cut on the top side of the dykes ring helps with gas loading and is favored with many engine builders all the way through top fuel and funny car teams. Second compression rings: Second rings function primarily as an oil control device. 80-90% oil control and about 10–20% compression control is the norm. The two common design second rings are a reverse-twist, taper faced (RBT) and a hook groove (THG), sometimes called a Napier ring. The THG Napier ring is very common in performance ring sets. An inside bevel causes torsional twist in the ring. The twist acts in a manner that prevents oil migration up and behind the second ring. The taper face scrapes oil off the cylinder wall, providing oil control. THG second rings also have torsional twist caused by not a bevel on the ID but the machining of the hook groove on the OD. The purpose is the same, limiting oil migration behind the ring. THG second rings offer improved oil control than RBT rings. Oil rings: All MAHLE Original® performance rings use the CP-20™ design, three-piece oil ring. A technical description of this ring can be found under oil control ring on page 17 of this catalog. |
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Piston crown: The very top of the piston, the part that forms
the bottom of the combustion chamber. It may be flat, domed or
dished depending on the motor. Groove or ring groove: There is one groove for each ring on the piston, usually top ring groove, second ring groove and oil ring groove. Groove radius and ring ID radius have to match and they promote reduced gas loss behind the ring. Radial back clearance: The clearance remaining between the back of the ring when installed on the piston, when the ring face is flush with piston ring land. Side clearance: The vertical clearance remaining in the piston ring groove after the ring is installed. Lands or ring lands: Piston material above and below the ring grooves. Lands support the ring and may be modified by the piston manufacture to promote ring seal. Drain holes or drain slots: Usually found at the back of the oil ring groove to allow oil which has been scraped off the cylinder wall to drain back to the crankcase. Piston skirt: The part of the piston below the oil ring groove. The skirt provides piston stability, although most racing engines have very little in the way of a piston skirt. Reasons include the need to clear the counterweights on the crank, especially on stroker motors, and to reduce piston mass and inertial loads on the piston. |
| This is the ring measured from the front face touching the cylinder wall to the back or inside face of the ring. “D-wall” is the standard automotive thickness and it’s calculated by bore diameter divided by 22. For example: 4.125” bore divided by 22 is .187” radial wall thickness. |
| Sometimes referred to as “back-cut”, these are compression rings with less than “D-wall” thickness. Reasons for reduced radial wall include: creating stronger pistons, reducing tension load on the cylinder wall and allowing the ring to be moved up on the piston, reducing crevice volume. |
| Measured from one side face to the other, expressed in fractional sizes like 1/16”, decimal sizes like .043” or metric sizes like 1.5MM. Generally speaking, smaller ring thickness means less mass. Less mass also means less inertia to overcome when the ring reaches TDC or BDC and has to reverse direction in the cylinder. |
| The part of the ring facing or contacting the cylinder wall. Virtually all racing top rings are made with a “barrel face” design. Barrel faced top rings provide the following advantages: Rapid break-in and continual contact with the cylinder wall when piston rocks at TDC. Second compression rings can be “twisted-taper-faced” or THG napier designs, depending on the intended application and size desired. |
| Usually measured 1/2” down in a cylinder of desired size, gap is the space between the ends of the compression rings. See page 21 for gap recommendations. |
| MAHLE Original® performance compression rings are engineered to provide the best possible sealing for maximum power output. To meet the needs of today’s harsh performance environment MAHLE Original offers compression rings in multiple materials, widths and types. Material choices include cast iron, ductile iron, and steel. |
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Cast Iron • Claimer sets feature a cast iron or cast iron plasma-moly top compression ring Ductile Iron • Grey Iron and ductile iron work well in moderate performance applications • Ductile-chrome top rings can withstand operating temperatures up to 600° F. Dusty or highly abrasive environments, like off-road racing, are ductile-chrome’s strength • Ductile-Plasma rings can withstand higher operating temperatures and marginal lubrication environments better than ductile-chrome PC479 – Hardened Ductile Iron • PC479 – Hardened ductile iron goes through an additional hardening process that provides a stronger surface hardness, and overall toughness, which allows the piston ring to run against most bore surfaces without additional face coating • Used in power adder applications where operating conditions exceed the capabilities of a common face coated ring GNS - Gas Nitrided Stainless Steel • Provides additional hardness and scuff resistance over PC479 for high end power adder applications SAE 9254 Steel • SAE 9254 Steel provides unequaled strength and fatigue resistance which extends ring life, minimizes side wear, and reduces ring breakage • SAE 9254 Steel’s overall strength allows for thinner radial wall designs that reduce ring flutter, and improve dynamic sealing, which extends the engine’s usable RPM range • MAHLE HV385 patented thermal sprayed face coating and MAHLE Original SAE 9254 compression rings exceed the strength, scuff resistance, and overall durability levels demanded by todays ultra-high output performance applications |
| The increasing RPM and cylinder pressure of today’s high performance racing engines demand the strongest and lightest piston ring components. The MAHLE SAE 9254 steel piston ring material features outstanding fatigue resistance as well as resistance to breakage creating a piston ring that is far superior to any other piston ring material in the industry. |
| 1920 |
| Typical Compression Ring Widths: 3/32” / .0935” |
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ADVANTAGES Adequate strength with existing materials technology DISADVANTAGES Heavy, relatively high tension and friction to achieve static sealing requirements |
| 1960. |
| Typical Compression Ring Widths: 5/64” / .078” / 2.0MM |
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ADVANTAGES Improved materials and straighter cylinders allowed for less static tension to achieve proper sealing. Reduced piston ring mass, from smaller width and cross section allowed for higher RPM stability. DISADVANTAGES Slight reduction in durability due to reduced running surface area. Chrome and plasma-moly anti-wear face coatings used to increase ring life, and durability. |
| 1965 |
| Typical Compression Ring Widths: 1/16” / .0625” |
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ADVANTAGES High strength/ductile iron improved the piston ring's ability to hold tension, and resist unwanted twist at the higher operating temperatures and loads. Reduced piston ring mass allowed for improved high RPM stability. DISADVANTAGES Reduction in durability due to reduced running surface area. Plasma-moly or chrome anti-wear face coatings became necessary to maintain overall durability. |
| 1975 |
| Typical Compression Ring Widths: .043” / 1.1MM |
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ADVANTAGES Smaller cross section and reduced piston ring mass allowed for additional ring stability at higher RPM's DISADVANTAGES Noticeable reduction in durability due to reduced running surface area. Relatively thin cross section pushed the limit of ductile iron's ability to resist twist and hold tension in high temperature/ high load applications. Plasma-moly face coatings were used in the majority of applications to improve overall ring durability. |
| 1982 |
| Typical Compression Ring Widths: .0586” / 1.5MM – Grey Iron and Steel |
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ADVANTAGES Reduced piston ring mass, over .078" wide rings, allowed for additional stability at higher RPM's DISADVANTAGES Reduction in durability due to reduced running surface area. New developments in anti-wear face coatings, PF273, PF278, and flash chrome on 2nd rings improved ring life expectancy. |
| 2005 |
| Typical Compression Ring Widths: .047” / 1.2MM – 9254 Steel |
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ADVANTAGES The added strength of steel, over ductile iron, and the use of PF278 - Plasma, improve the ring's scuff resistance, torsional rigidity, and overall durability. The significantly reduced cross section and piston ring mass, extend the usable RPM range and improve ring stability, and sealing. DISADVANTAGES Reduced ring cross section requires reduced ring-to-groove side clearance, and optimized lower land size, flatness, and angularity achieve best results. |
| 2016 |
| Typical Compression Ring Widths: .039” / 1.0MM – 9254 Steel |
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ADVANTAGES Further reduction in cross section and piston ring mass, extend the usable RPM range without loss of ring stability. The addition of HV385 - Thermal Spray Face Coating, adds coating strength and durability well above any previous design. DISADVANTAGES Reduced ring cross section requires reduced ring-to-groove side clearance, and optimized lower land size, flatness, and angularity achieve best results. |
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The primary function of the second ring is to control oil. MAHLE Original® Performance piston rings offer the tapered hook groove (THG) second ring that provides superior oil control, improved combustion gas management, improved top ring stability, and improved sealing. Combined, these qualities provide the performance enthusiast with the best possible oil control and least amount of power loss in any performance second ring. Back pressure buildup from combustion gasses leaking past the top ring can cause the top ring to float, breaking the combustion seal and reducing power. The MAHLE Original Performance second ring acts as a check valve to relieve the excessive combustion pressure build up under the top ring, thus stabilizing it. The unique hook configuration of the outside bottom edge scrapes the cylinder walls of oil, and provides a reservoir on each down-stroke, while riding smoothly on a film of oil on the upstroke. MAHLE Aftermarket continues to lead the Industry with the introduction of SAE 9254 Napier design, THG second rings. Just as with top rings, the overall strength and toughness of SAE 9254 steel allows for thinner and lighter-design second rings, that conform better to the cylinder wall, and actually improve oil scraping efficiency, while reducing friction, and parasitic loss. |
| The primary function of the second ring is to control oil as much as 80%. The second ring is also used in compression control up to 20%. |
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Most of the competition use a tab angle of 90 degrees. MAHLE
Original® makes use of a better design, CP-20™, which
utilizes an angle of 20 degrees. The CP-20 oil ring allows the
rail or segment to push up the 20 degree angle until it contacts
the oil ring land both top and bottom. The net result is better
side-seal and lower oil consumption than conventional rings. Assembled radial thickness You’ll see both standard and reduced wall thicknesses listed. Wall thickness is dictated by piston manufacturer’s specs and engine builders’ desire for reduced mass and tension. |
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Tab angle Most of the competition use a tab angle of 90 degrees. MAHLE Original® makes use of a better design, CP-20™, which utilizes an angle of 20 degrees. The CP-20 oil ring allows the rail or segment to push up the 20 degree angle until it contacts the oil ring land both top and bottom. The net result is better side-seal and lower oil consumption than conventional rings. Assembled radial thickness You’ll see both standard and reduced wall thicknesses listed. Wall thickness is dictated by piston manufacturer’s specs and engine builders’ desire for reduced mass and tension. |
| MAHLE Original® Performance CP-20™ oil control rings were designed to provide superior oil control in all performance applications. MAHLE Original Performance oil rings utilize the exclusive 20°ear angle for the best possible side seal in the piston oil ring groove. The unique ChemPolish™ process improves oil drain back. The CP-20 design simplifies installation by eliminating wire latches and or nylon blocks, while the low deflection rate assures an easy installation. |
| Each CP-20 oil ring assembly is designed around a specific bore diameter to provide the least amount of internal engine friction while providing the best possible oil control. These oil rings are available in four tensions to suit the needs of all racers and performance enthusiasts. See page 20 for ring selection guide. |
| Oil scraping efficiency is directly proportional to the radial wall of the rail, and the tension of the assembly. Using the typical three-piece oil ring of the mid-1970’s as our baseline, the rail wall vs. tension combinations would look like this: |
| Time of use in O.E. Engines | Radial Wall of Rail | Tension | Nominal Width | Documented Oil Consumption |
| 1970 | .153” - .168” | 20 lbs. | .1875” | 1,500 - 3,000 miles per Qt. |
| 1985 | .123” - .136” | 16-18 lbs | 4.0 mm (.1575”) | 3,000-4,000 miles per Qt. |
| 1995 | .103” - .110” | 10 -14 lbs. | 3.0 mm (.118”) | 4,000-5,000 miles per Qt. |
| 2005 | .093” - .098” | 9-10 lbs. | 2.5 mm (.0984”) | 5,000 - 7,500 miles per Qt. |
| 2010 | .079” - .088” | 7-9 lbs. | 2.0 mm (.0787”) | 7,500 - 10,000 miles per Qt. |
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MAHLE Original® oil ring assemblies are designed to achieve
optimum level of oil control for today’s low windage/ wet
sump, performance applications. Over 40 years of oil ring design and evolution has shown a 50% reduction in tension and oil ring assembly radial wall, while also achieving a 300% improvement in oil control. The corresponding reduction in parasitic loss due to reduced tension and friction translates directly to increased horsepower. |
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Claimer Race Applications MAHLE Original® claimer performance piston ring sets are engineered for oval track claimer series engines. These economy performance ring sets feature many of the same benefits as our race proven premium sets at an economical price. Positively Twisted 5/64” or 1/16” top rings provide outstanding high RPM sealing in a choice of plain cast iron or plasma-moly face coatings. These sets also utilize a 5/64” RBT or 1/16” THG second ring which provides unmatched oil control in race conditions. Oil rings are also utilized in standard and low tension for optimum power output. PC479 Fire-Power™ Ring Sets MAHLE Original® Fire-Power™ piston ring sets are engineered to withstand the punishment of today’s high powered nitrous oxide injected, turbocharged and supercharged race applications. PC479 compression rings provide superior ring durability, stable radial tension, superior combustion sealing and oil control, while protecting the cylinder walls. All these benefits net additional horsepower while extending engine life. MAHLE Original Fire-Power™ rings can be purchased in boxed engine sets as well as open stock to meet your performance requirements. Gas Nitride Ring Sets MAHLE Original® gas nitride steel (GNS) piston ring sets are engineered to withstand the extreme punishment of today’s high compression naturally aspirated; nitrous oxide injected, turbocharged and supercharged race engines. GNS ring sets provide overall strength only offered by a steel ring as well as provide high conformability, reduced piston ring mass, and less friction. All these benefits net greater horsepower and extend the service life of the engine. Plasma-Moly Steel Ring Sets MAHLE Original® plasma-moly steel top rings provide the ultimate in tensile strength, hardness, and fatigue resistance. MAHLE Original SAE 9254 high-alloy steel is combined with proprietary plasma face coating to extend life, eliminate ring breakage, reduce side wear and minimize groove pound out |
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Plasma-Moly Ductile Ring Sets MAHLE Original® plasma-moly ductile ring sets are designed for the serious racer. These sets feature rings that maximize combustion sealing and minimize frictional losses to increase horsepower and oil control. These sets include reduced radial wall (RRW) compression rings, and oil rings to reduce tension, improve conformability and maximize power output. Ring sets with low and ultra low tension oil rings are not recommended for street use and should utilize a vacuum pump for maximum performance. Chrome Ductile Ring Sets MAHLE Original® chrome ductile ring sets are engineered to maximize combustion sealing and minimize frictional loses to increase horsepower and oil control. These sets contain a chrome ductile top ring for superior strength and high RPM combustion sealing. The grey iron RBT or THG second ring provides unmatched oil control. Oil rings are also utilized in standard tension for optimum power output. |
| Tension Category | Tangential Tension Force | Application Recommendations |
| 2.0MM / 2.5MM | ||
| Ultra-Low |
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Naturally Aspirated Applications, Wet or Dry Sump Oiling System. Crankcase Vacuum System Recommended. Race Only Applications. |
| Low |
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Naturally Aspirated Applications. Wet or Dry Sump Oiling System. Crankcase Vacuum System Recommended. Primarily Race Applications. |
| Standard |
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Naturally Aspirated or Power Adder Applications. Wet or Dry Sump Oiling System. Street, Race, or Off-Road Application. |
| 3.0MM / 4.0MM | ||
| Ultra-Low |
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Naturally Aspirated Applications, Wet or Dry Sump Oiling System. Crankcase Vacuum System Recommended. Race only applications. |
| Low |
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Naturally Aspirated Applications. Wet or Dry Sump Oiling System. Crankcase Vacuum System Recommended. Primarily Race Applications. |
| Standard |
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Naturally Aspirated or Power Adder Applications. Wet or Dry Sump Oiling System. Street, Race, or Off-Road Application. |
| 3/16” | ||
| Low |
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Naturally Aspirated Applications. Wet or Dry Sump Oiling System. Crankcase Vacuum System Recommended. Primarily Race Applications. |
| Standard |
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Naturally Aspirated or Power Adder Applications. Wet or Dry Sump Oiling System. Street, Race, or Off-Road Application. |
| High Tension |
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Power Adder Applications. Wet or Dry Sump Oiling System. Nitro Dragster and Funny Car. |
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Axial Height |
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Moderate Performance - Street, Drag Race, Oval Track |
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.004” | .016” |
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.0045” | .018” | |
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Race Only/ Naturally Aspirated - Drag Race, Oval Track |
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.0045” | .018” |
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.005” | .020” | |
| Nitrous Oxide - Street |
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.005” | .020” |
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.0055” | .022” | |
| Nitrous Oxide - Race |
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.007” | .028” |
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.0075” | .030” | |
| Supercharged/ Turbocharged |
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.007” | .028” |
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.0075” | .030” | |
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Moderate Performance - Street, Drag Race, Oval Track |
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.0045” | .018” |
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.005” | .020” | |
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Race Only/ Naturally Aspirated - Drag Race, Oval Track |
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.005” | .020” |
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.0055” | .022” | |
| Nitrous Oxide - Street |
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.0055” | .022” |
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.006” | .024” | |
| Nitrous Oxide - Race |
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.0065” | .026” |
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.007” | .028” | |
| Supercharged/ Turbocharged |
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.006” | .024” |
| Notice: Most of the second ring gap recommendations are larger than the top rings. Recent testing has proven that a larger second ring gap increases the top ring’s stability allowing for a better seal. This larger “escape” path prevents inter-ring pressure from building up and lifting the top ring off the piston allowing combustion to get by. Many engine builders have reported lower blow-by and horsepower gains at the upper RPM ranges with the wider second ring gaps. Also, almost every new car made is using this inter-ring pressure reduction method to lower blow-by and emissions and to increase engine output. |
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Ring gap filing procedures: 1. Determine the appropriate gap for your engines bore size and application. 2. Use a manual hand crank style ring grinder or a quality electric ring grinder to properly fit your rings to the cylinder bore. 3. File the ring from the face to the inside diameter of the ring to prevent chipping or damage of the face coating. 4. File only one end of the ring end gap, using the unfiled end as a reference point. 5. Lightly debur the gap edges. |
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Ring installation procedures: 1. Check each ring in its corresponding groove to ensure proper axial and radial clearance. 2. Always use a piston ring expander when installing piston rings as spiraling rings into the grooves can damage both the ring and the piston. 3. Lubricate new piston rings with a light assembly oil or motor oil before installation onto the piston. 4. Stagger the end gaps on each compression ring, oil rail and expander. |
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PC479 Fire-power™ .078 Plasma-Moly Dykes Compression
Rings The MAHLE Original® PC479 Fire Power™ high strength ductile iron ring dramatically improves the torsional rigidity and radial tension stability of the ring with the .078” wide cross section of the dykes, or pressure-backed ring. These features combine to better resist the pressure-twisting phenomenon caused by the high firing pressures of today’s nitro-fueled engines. The improved stability provides for increased durability and superior combustion sealing and oil control while the plasma face helps to protect the cylinder walls under these extreme operating conditions. |
| MAHLE Original® Performance .078” ductile plasma-moly barrel-faced second ring provides superior strength, improved torsional rigidity and radial tension along with plasma-moly face to protect the cylinder wall. These features provide a better sealing and more stable second ring over previous designs and materials, resulting in more power and decreased part failure. |
| MAHLE Original® Performance nitro specific high tension 3/16” chrome oil ring assemblies provide superior oil control with minimal friction loss. All CP-20™ oil assemblies are designed to provide enhanced conformability, utilize the exclusive 20°ear angle for the best possible side seal, and receive the ChemPolish™ process to improve oil drain back. The CP-20 oil ring also simplifies installation by eliminating wire latches and or nylon blocks while maintaining a low deflection rate. |
| Bore |
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Base Material |
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Part Number |
| 4.1875” |
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9254 Steel |
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301-1273B $22.04 * |
| 4.1900" |
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PC479 |
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301-0271B $23.21 |
| 4.1900" |
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Ductile Iron |
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301-0060B $25.30 |
| 4.1900" |
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.173" | PC479 | - |
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301-0236B $25.22 |
| 4.1870" |
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PC479 | - |
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301-0886B $25.30 |
| 4.1900" |
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Ductile Iron |
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300-0199B $25.36 |
| 4.1900" |
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9254 Steel |
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301-1101B $12.35 * |
| 4.1900" |
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Steel |
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303-0186B $6.84 |
| 4.1900" |
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Steel |
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303-0133B $5.06 |
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MAHLE Original® claimer performance piston ring sets are
engineered for oval track claimer series engines. These economy
performance ring sets feature many of the same benefits as our
race proven premium sets at an economical price. Positively twisted
5/64” or 1/16” top rings provide outstanding high RPM
sealing in a choice of plain cast iron or plasma-moly face coatings.
These sets also utilize a 5/64” RBT or 1/16” THG second
ring which provides unmatched oil control in race conditions.
CP-20™ oil rings are also utilized in standard and low tension
for optimum power output. 1/16", 1/16", 3/16" Plasma-Moly Carbon Steel Standard Tension Engine Sets |
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Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0004 $181.75 |
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| 310-0004 $181.75 .030 |
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| 310-0004 $181.75 .040 |
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| 310-0004 $181.75 .060 |
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| 1/16", 1/16", 3/16" Plasma-Moly Ductile Iron Standard Tension Engine Sets | |||||||
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Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0003 $151.53 |
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| 310-0003 $151.53 .030 |
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| 310-0003 $151.53 .040 |
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| 5/64", 5/64", 3/16" Plasma-Moly Carbon Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
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Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0014 $145.95 |
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| 310-0014 $145.95 .020 * |
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| 310-0014 $145.95 .030 |
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| 310-0014 $145.95 .040 |
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| 310-0014 $145.95 .060 |
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| 5/64", 5/64", 3/16" Plasma-Moly Grey Iron Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0013 $122.98 |
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| 310-0013 $122.98 .020 * |
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| 310-0013 $122.98 .030 |
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| 310-0013 $122.98 .040 |
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| 310-0013 $122.98 .060 |
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| 5/64", 5/64", 3/16" Grey Iron Non Coated Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0005 $90.28 |
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| 310-0005 $90.28 .020 |
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| 310-0005 $90.28 .030 * |
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| 310-0005 $90.28 .040 |
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| 310-0005 $90.28 .060 |
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| 310-0007 $90.28 |
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| 310-0007 $90.28 .020 * |
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| 310-0007 $90.28 .030 |
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| 310-0007 $90.28 .040 * |
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| 310-0007 $90.28 .060 * |
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| 5/64", 5/64", 3/16" Plasma-Moly Carbon Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0006 $131.27 |
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| 310-0006 $131.27 .020 |
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| 310-0006 $131.27 .030 |
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| 310-0006 $131.27 .040 |
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| 310-0006 $131.27 .060 |
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| 5/64", 5/64", 3/16" Plasma-Moly Grey Iron Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 310-0008 $122.98 |
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| 310-0008 $122.98 .020 * |
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| 310-0008 $122.98 .030 |
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| 310-0008 $122.98 .040 |
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| 310-0008 $122.98 .060 |
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| MAHLE Original® PC479 Fire-Power™ piston ring sets are engineered to withstand the punishment of today’s high powered nitrous oxide injected, turbocharged and supercharged race applications. PC479 compression rings will provide superior ring durability, stable radial tension, superior combustion sealing and oil control, while protecting the cylinder walls. All these benefits will net additional horsepower while extending engine life. MAHLE Original PC479 Fire-Power™ rings can be purchased in boxed engine sets as well as open stock to meet your performance requirements. |
| 1/16”, 1/16”, 3/16” PC479 Fire-Power Ductile Iron Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0072 $238.88 .005 | 4.0050” | 301-0206 $146.34 | .187” | 302-0109 $63.19 | .170” | 303-0115 $39.30 | .201” |
| 315-0072 $238.88 .035 | 4.0350” | 301-0208 $143.77 | .187” | 302-0113 $56.75 | .170” | 303-0118 $35.12 | .201” |
| 315-0072 $238.88 .045 | 4.0450” | 301-0209 $147.55 | .187” | 302-0115 $56.75 | .170” | 303-0119 $35.43 | .201” |
| 315-0072 $238.88 .065 | 4.0650” | 301-0210 $147.55 | .187” | 302-0117 $56.75 | .170” | 303-0121 $35.43 | .201” |
| 315-0073 $261.42 .005 | 4.1300” | 301-0211 $180.15 | .192” | 302-0128 $52.25 | .170” | 303-0128 $39.51 | .201” |
| 315-0073 $261.42 .035 | 4.1600” | 301-0213 $162.28 | .192” | 302-0132 $56.75 | .170” | 303-0131 $35.60 | .201” |
| 315-0073 $261.42 .045 | 4.1700” | 301-0214 $162.28 | .192” | 302-0134 $63.03 | .170” | 303-0132 $36.03 | .201” |
| 315-0073 $261.42 .065 | 4.1900” | 301-0215 $160.96 | .192” | 302-0138 $56.65 | .170” | 303-0133 $46.21 | .201” |
| 315-0074 $261.42 .035 | 4.2850” | 301-0217 $163.91 | .198” | 302-0142 $56.19 | .170” | 303-0136 $35.79 | .201” |
| 315-0074 $261.42 .065 | 4.3150” | 301-0218 $162.28 | .198” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| 315-0075 $286.80 .005 * | 4.3250” | 301-0219 $150.23 * | .201” | 302-1067 $56.19 | .170” | 303-0258 $52.09 | .201” |
| 315-0075 $286.80 .035 | 4.3550” | 301-0220 $183.50 | .201” | 302-1069 $55.75 | .170” | 303-0261 $60.74 | .201” |
| 315-0077 $286.80 .005 | 4.3800” | 301-0222 $182.61 | .204” | 302-1073 $55.30 | .170” | 303-0290 $46.30 | .201” |
| 315-0076 $286.80 .035 * | 4.3950” | 301-0224 $150.23 * | .203” | 302-1075 $56.65 | .170” | 303-0142 $35.43 | .201” |
| 315-0078 $286.80 .005 | 4.4450” | 301-0226 $185.33 | .207” | 302-0316 $56.65 | .170” | 303-0642 $51.72 | .201” |
| 315-0079 $269.41 .005 | 4.5050” | 301-0228 $195.12 | .210” | 302-0319 $75.13 | .170” | 303-0359 $34.49 | .201” |
| 315-0079 $269.41 .035 | 4.5350” | 301-0230 $195.12 | .210” | 302-0320 $75.73 | .170” | 303-0360 $58.24 | .201” |
| 315-0079 $269.41 .065 | 4.5650” | 301-0231 $195.12 | .210” | 302-0321 $75.48 | .170” | 303-0361 $58.24 | .201” |
| 315-0081 $286.80 .005 | 4.6050” | 301-0232 $230.25 | .210” | 302-0323 $75.48 | .170” | 303-0884 $55.52 | .170” |
| 315-0081 $286.80 .025 * | 4.6300” | 301-0233 $186.45 * | .210” | 302-0324 $76.10 | .170” | 303-0894 $46.68 | .170” |
| 1/16”, 1/16”, 3/16” PC479 Fire-Power Ductile Iron High Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0108 .005 | 4.5050” | 301-0228 $195.12 | .210” | 302-0319 $75.13 | .170” | 303-0647 $46.60 | .201” |
| 315-0108 .035 | 4.5350” | 301-0230 $195.12 | .210” | 302-0320 $75.73 | .170” | 303-0648 $46.68 | .201” |
| 315-0108 .065 | 4.5650” | 301-0231 $195.12 | .210” | 302-0321 $75.48 | .170” | 303-0649 $62.77 | .201” |
| 315-0109 .005 | 4.6050” | 301-0232 $230.25 | .210” | 302-0323 $75.48 | .170” | 303-0885 $46.68 | .170” |
| 315-0109 .025 * | 4.6300” | 301-0233 $186.45 * | .210” | 302-0324 $76.10 | .170” | 303-0749 $46.68 * | .170” |
| .017”, 1/16”, 3/16” PC479 Fire-Power Ductile Iron Dykes Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0087 .005 | 4.3150” | 301-0239 $224.84 | .173” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| .017”, 1/16”, 3/16” PC479 Fire-Power Ductile Iron Dykes High Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0088 .005 | 4.3800” | 301-0240 $244.57 | .173” | 302-1073 $55.30 | .170” | 303-0296 $46.36 | .201” |
| 315-0089 .005 | 4.4700” | 301-0242 $240.26 | .173” | 302-0900 $50.97 | .207” | 303-0298 $46.44 | .201” |
| 315-0207.005 $272.48 | 4.5050” | 301-0245 $240.26 | .173” | 302-0319 $75.13 | .170” | 303-0647 $46.60 | .201” |
| MAHLE Original® gas nitride steel (GNS) piston ring sets are engineered to withstand the extreme punishment of today’s high compression naturally aspirated; nitrous oxide injected, turbocharged and supercharged race engines. GNS ring sets provide the overall strength only offered by a steel ring as well as provide high conformability features, reduced ring mass, and less friction. All these benefits will net greater horsepower and extend the service life of the engine. |
| .043”, .043”, 3.0MM Gas Nitride Steel Ultra Low Tension Reduced Radial Wall Engine Sets |
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0015 $282.42 .060 * | 4.0600” | 301-1173 $115.86 | .157” | 302-1293 $66.91 | .135” | 303-0079 $46.21 | .153” |
| 315-0017 $229.57 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-1251 $68.64 | .135” | 303-0008 $75.84 | .153” |
| 315-0017.015 | 4.1400” | 301-1189 $133.40 | .157” | 302-1265 $89.61 | .135” | 303-0010 $91.39 | .153” |
| 315-0017 $229.57 .025 | 4.1500” | 301-1191 $119.55 | .157” | 302-1313 $68.64 | .135” | 303-0011 $75.84 | .153” |
| 315-0017 $229.57 .030 | 4.1550” | 301-1192 $119.55 | .157” | 302-1260 $68.64 | .135” | 303-0013 $35.43 | .153” |
| 315-0017 $229.57 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1257 $66.91 | .135” | 303-0014 $75.84 | .153” |
| 315-0017 $229.57 .045 | 4.1700” | 301-1150 $110.89 | .171” | 302-1266 $68.64 | .135” | 303-0016 $75.84 | .153” |
| 315-0017 $229.57 .065 | 4.1900” | 301-1199 $119.55 | .157” | 302-1296 $68.64 | .135” | 303-0020 $75.84 | .153” |
| .043”, .043”, 3.0MM Gas Nitride Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0059 $282.42 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-1252 $76.61 | .135” | 303-0075 $39.72 | .151” |
| 315-0059 $282.42 .040 * | 4.0400” | 301-1169 $115.86 | .157” | 302-1292 $67.94 | .135” | 303-0076 $35.43 | .151” |
| 315-0059 $282.42 .045 | 4.0450” | 301-1170 $128.63 | .157” | 302-1294 $68.10 | .135” | 303-0076 $35.43 | .151” |
| 315-0059 $282.42 .060 * | 4.0600” | 301-1173 $115.86 | .157” | 302-1293 $66.91 | .135” | 303-0079 $46.21 | .151” |
| 315-0059 $282.42 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-1293 $66.91 | .135” | 303-0079 $46.21 | .151” |
| 315-0059 $282.42 .105 | 4.1050” | 301-1182 $119.55 | .157” | 302-1310 $75.02 | .135” | 303-0082 | .151” |
| 315-0164 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-1251 $68.64 | .135” | 303-0085 $39.72 | .151” |
| 315-0164.015 $275.39 | 4.1400” | 301-1189 $133.40 | .157” | 302-1265 $89.61 | .135” | 303-0087 $39.89 | .151” |
| 315-0164 .025 | 4.1500” | 301-1191 $119.55 | .157” | 302-1313 $68.64 | .135” | 303-0089 $46.06 | .151” |
| 315-0164 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1257 $66.91 | .135” | 303-0090 $46.84 | .151” |
| 315-0164 .045 | 4.1700” | 301-1150 $110.89 | .171” | 302-1266 $68.64 | .135” | 303-0238 $34.85 | .151” |
| 315-0164.050 N/A | 4.1750” | 301-1196 $118.58 | .157” | 302-1266 $68.64 | .135” | 303-0239 $46.68 | .151” |
| 315-0164 .065 | 4.1900” | 301-1199 $119.55 | .157” | 302-1296 $68.64 | .135” | 303-0240 $46.68 | .151” |
| .043”, .043”, 3.0MM Gas Nitride Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0168 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-1252 $76.61 | .135” | 303-0308 $57.96 | .151” |
| 315-0168 .040 * | 4.0400” | 301-1169 $115.86 | .157” | 302-1292 $67.94 | .135” | 303-0309 $56.81 | .151” |
| 315-0168 .045 | 4.0450” | 301-1170 $128.63 | .157” | 302-1294 $68.10 | .135” | 303-0309 $56.81 | .151” |
| 315-0168 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-1293 $66.91 | .135” | 303-0311 $51.01 | .151” |
| 315-0169 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-1251 $68.64 | .135” | 303-0319 $57.96 | .153” |
| 315-0169.015 $275.39 | 4.1400” | 301-1189 $133.40 | .157” | 302-1265 $89.61 | .135” | 303-0321 $49.89 | .153” |
| 315-0169 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1257 $66.91 | .135” | 303-0325 $35.08 | .153” |
| .043”, .043”, 3/16” Gas Nitride Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0140 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-1252 $76.61 | .135” | 303-0158 $62.77 | .201” |
| 315-0140 .045 | 4.0450” | 301-1170 $128.63 | .157” | 302-1294 $68.10 | .135” | 303-0159 $51.72 | .201” |
| 315-0140 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-1293 $66.91 | .135” | 303-0161 $58.24 | .201” |
| 315-0163 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-1251 $68.64 | .135” | 303-0168 $35.79 | .201” |
| 315-0163 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1257 $66.91 | .135” | 303-0171 $58.24 | .201” |
| 315-0163 .045 | 4.1700” | 301-1150 $110.89 | .171” | 302-1266 $68.64 | .135” | 303-0172 $35.43 | .201” |
| .043”, .043”, 3/16” Gas Nitride Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0184 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-1252 $76.61 | .135” | 303-0118 $35.12 | .201” |
| 315-0184 .045 | 4.0450” | 301-1170 $128.63 | .157” | 302-1294 $68.10 | .135” | 303-0119 $35.43 | .201” |
| 315-0184 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-1293 $66.91 | .135” | 303-0121 $35.43 | .201” |
| 315-0185 .005 | 4.1300” | 301-1187 $133.40 | .157 | 302-1251 $68.64 | .135” | 303-0128 $39.51 | .201” |
| 315-0185 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1257 $66.91 | .135” | 303-0131 $35.60 | .201” |
| 315-0185 .045 | 4.1700” | 301-1150 $110.89 | .171” | 302-1266 $68.64 | .135” | 303-0132 $36.03 | .201” |
| .043”, 1.5MM, 3.0MM Gas Nitride Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0178 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-1267 $56.75 | .150” | 303-0075 $39.72 | .151” |
| 315-0178 .045 | 4.0450” | 301-1170 $128.63 | .157” | 302-1264 $63.54 | .150” | 303-0076 $35.43 | .151” |
| 315-0178 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-1209 $56.40 | .150” | 303-0079 $46.21 | .151” |
| 315-0178 .085 | 4 .0850” | 301-1178 $119.44 | .157” | 302-1245 $57.22 | .150” | 303-0080 $35.44 | .151” |
| 315-0179 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-1311 $80.53 | .150” | 303-0085 $39.72 | .151” |
| 315-0179.010 $246.35 | 4.1350” | 301-1188 $129.95 | .157” | 302-1271 $82.25 | .150” | 303-0086 $39.51 | .151” |
| 315-0179.015 $275.39 | 4.1400” | 301-1189 $133.40 | .157” | 302-1278 $73.47 | .150” | 303-0087 $39.89 | .151” |
| 315-0179 .025 | 4.1500” | 301-1191 $119.55 | .157” | 302-1279 $74.06 | .150” | 303-0089 $46.06 | .151” |
| 315-0179 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1280 $73.47 | .150” | 303-0090 $46.84 | .151” |
| 315-0179 .045 | 4.1700” | 301-1150 $110.89 | .171” | 302-1312 $74.06 | .150” | 303-0238 $34.85 | .151” |
| .043”, 1.5MM, 3.0MM Gas Nitride Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0181 .025 | 4.0250” | 301-1166 $115.86 | .157” | 302-1263 $57.22 | .150” | 303-0307 $46.21 | .151” |
| 315-0181 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-1267 $56.75 | .150” | 303-0308 $57.96 | .151” |
| 315-0181 .045 | 4.0450” | 301-1170 $128.63 | .157” | 302-1264 $63.54 | .150” | 303-0309 $56.81 | .151” |
| 315-0181 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-1209 $56.40 | .150” | 303-0311 $51.01 | .151” |
| 315-0183 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-1311 $80.53 | .150” | 303-0319 $57.96 | .151” |
| 315-0183.010 $246.35 | 4.1350” | 301-1188 $129.95 | .157” | 302-1271 $82.25 | .150” | 303-0320 $57.37 | .151” |
| 315-0183.015 $275.39 | 4.1400” | 301-1189 $133.40 | .157” | 302-1279 $74.06 | .150” | 303-0321 $49.89 | .151” |
| 315-0183 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-1280 $73.47 | .150” | 303-0325 $35.08 | .151” |
| .043”, 1/16”, 3.0MM Gas Nitride Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0154 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-0113 $56.75 | .170” | 303-0075 $39.72 | .151” |
| 315-0154 .045 | 4.0450” | 301-1169 $115.86 | .157” | 302-0115 $56.75 | .170” | 303-0076 $35.43 | .151” |
| 315-0155 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0085 $39.72 | .151” |
| 315.0155 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-0132 $56.75 | .170” | 303-0090 $46.84 | .151” |
| .043”, 1/16”, 3.0MM Gas Nitride Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0156 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-0113 $56.75 | .170” | 303-0308 $57.96 | .151” |
| 315-0156 .045 | 4.0450” | 301-1169 $115.86 | .157” | 302-0115 $56.75 | .170” | 303-0309 $56.81 | .151” |
| 315-0157 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0319 $57.96 | .151” |
| 315-0157 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-0132 $56.75 | .170” | 303-0325 $35.08 | .151” |
| .043”, 1/16”, 3/16” Gas Nitride Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0119 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-0113 $56.75 | .170” | 303-0158 $62.77 | .201” |
| 315-0119 .045 | 4.0450” | 301-1169 $115.86 | .157” | 302-0115 $56.75 | .170” | 303-0159 $51.72 | .201” |
| 315-0119 .065 | 4.0650” | 301-1174 $114.91 | .157” | 302-0117 $56.75 | .170” | 303-0161 $58.24 | .201” |
| 315-0121 $216.78 .005 * | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0168 $35.79 | .201” |
| 315-0135 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0168 $35.79 | .201” |
| 315-0127 .005 * | 4.5050” | 301-1097 $125.13 | .171” | 302-0319 $75.13 | .170” | 303-0204 $63.39 | .201” |
| 315-0054 $223.37 .005 | 4.5050” | 301-1097 $125.13 | .171” | 302-0319 $75.13 | .170” | 303-0204 $63.39 | .201” |
| 315-0054 $223.37 .035 * | 4.5350” | 301-1098 $124.89 | .171” | 302-0320 $75.73 | .170” | 303-0205 * | .201” |
| 315-0054 $223.37 .065 | 4.5650” | 301-1099 $123.89 | .171” | 302-0321 $75.48 | .170” | 303-0206 $62.77 | .201” |
| 315-0127 .065 * | 4.5650” | 301-1099 $123.89 | .171” | 302-0321 $75.48 | .170” | 303-0206 $62.77 | .201” |
| 315-0104 .005 | 4.5675” | 301-1100 $124.89 | .171” | 302-0902 $85.34 | .212” | 303-0663 $51.72 | .201” |
| 315-0131 .005 | 4.6050” | 301-1041 $121.94 | .171” | 302-0323 $75.48 | .170” | 303-0883 $55.52 | .170” |
| .043”, 1/16”, 3/16” Gas Nitride Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0120 .035 | 4.0350” | 301-1168 $129.25 | .157” | 302-0113 $56.75 | .170” | 303-0118 $35.12 | .201” |
| 315-0083 $201.12 .035 * | 4.0350” | 301-1168 $129.25 | .157” | 302-0113 $56.75 | .170” | 303-0118 $35.12 | .201” |
| 315-0120 .045 | 4.0450” | 301-1169 $115.86 | .157” | 302-0115 $56.75 | .170” | 303-0119 $35.43 | .201” |
| 315-0084 $261.42 .005 | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0128 $39.51 | .201” |
| 315-0153 $168.86 .005 * | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0319 $57.96 | .151” |
| 315-0134 $216.78 .005 * | 4.1300” | 301-1187 $133.40 | .157” | 302-0128 $52.25 | .170” | 303-0128 $39.51 | .201” |
| 315.0122 .005 * | 4.1300” | 304-1187 | .157” | 302-0128 $52.25 | .170” | 303-0128 $39.51 | .201” |
| 315.0122 .035 | 4.1500” | 301-1147 $110.89 | .157” | 302-0130 $56.75 | .170” | 303-0130 $35.79 | .201” |
| 315-0084 $261.42 .035 | 4.1600” | 301-1193 $116.52 | .157” | 302-0132 $56.75 | .170” | 303-0131 $35.60 | .201” |
| 315-0084 $261.42 .045 | 4.1700” | 301-1150 $110.89 | .171” | 302-0134 $63.03 | .170” | 303-0132 $36.03 | .201” |
| 315-0084 $261.42 .065 | 4.1900” | 301-1199 $119.55 | .157” | 302-0138 $56.65 | .170” | 303-0133 $46.21 | .201” |
| 315-0085 $286.80 .005 | 4.5050” | 301-1097 $125.13 | .171” | 302-0319 $75.13 | .170” | 303-0359 $34.49 | .201” |
| 315-0055 $216.78 .005 * | 4.5050” | 301-1097 $125.13 | .171” | 302-0319 $75.13 | .170” | 303-0359 $34.49 | .201” |
| 315.0128 .005 * | 4.5050” | 301-1097 $125.13 | .171” | 302-0319 $75.13 | .170” | 303-0359 $34.49 | .201” |
| 315-0085 $286.80 .035 | 4.5350” | 301-1098 $124.89 | .171” | 302-0320 $75.73 | .170” | 303-0360 $58.24 | .201” |
| 315-0055 $216.78 .035 * | 4.5350” | 301-1098 $124.89 | .171” | 302-0320 $75.73 | .170” | 303-0360 $58.24 | .201” |
| 315.0128 .035 * | 4.5350” | 301-1098 $124.89 | .171” | 302-0320 $75.73 | .170” | 303-0360 $58.24 | .201” |
| 315-0128 $223.37 .065 | 4.5650” | 301-1099 $123.89 | .171” | 302-0321 $75.48 | .170” | 303-0361 $58.24 | .201” |
| 315-0055 $216.78 .065 * | 4.5650” | 301-1099 $123.89 | .171” | 302-0321 $75.48 | .170” | 303-0361 $58.24 | .201” |
| 315-0170 .005 | 4.5675” | 301-1100 $124.89 | .171” | 302-0902 $85.34 | .170” | 303-0669 $57.78 | .201” |
| 315-0085 $286.80 .065 | 4.5675” | 301-1100 $124.89 | .171” | 302-0321 $75.48 | .170” | 303-0361 $58.24 | .201” |
| 315-0118 .005 * | 4.6050” | 301-1041 $121.94 | .171” | 302-0323 $75.48 | .170” | 303-0884 $55.52 | .170” |
| 315-0080 $305.50 .025 | 4.6300” | 301-1046 $122.94 | .171” | 302-0324 $76.10 | .170” | 303-0894 $46.68 | .170” |
| 315-0082 $302.47 .005 * | 4.6800” | 301-0187 $248.07 | .175” | 302-0811 $66.26 | .170” | 303-0645 $51.72 | .201” |
| .043”, 1/16”, 3/16” Gas Nitride Steel High Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | 2nd Ring | Radial | Oil Ring | Radial |
| 315-0110 .005 | 4.5050” | 301-1097 $125.13 | .171” | 302-0319 $75.13 | .170” | 303-0647 $46.60 | .201” |
| 315-0110 .035 | 4.5350” | 301-1098 $124.89 | .171” | 302-0320 $75.73 | .170” | 303-0648 $46.68 | .201” |
| 315-0110 .065 | 4.5675” | 301-1100 $124.89 | .171” | 302-0321 $75.48 | .170” | 303-0649 $62.77 | .201” |
| 315-0111 .005 | 4.6050” | 301-1041 $121.94 | .171” | 302-0323 $75.48 | .170” | 303-0885 $46.68 | .170” |
| 315-0111 .025 * | 4.6300” | 301-1046 $122.94 | .171” | 302-0324 $76.10 | .170” | 303-0749 $46.68 * | .170” |
| 315-0112 .005 * | 4.6800” | 301-0187 $248.07 | .175” | 302-0811 $66.26 | .170” | 303-0655 $51.72 * | .201” |
Page 32
PLASMA-MOLY STEEL RING SETS
| MAHLE Original® plasma-moly steel top rings provide the ultimate in tensile strength, hardness, and fatigue resistance. The MAHLE Original SAE 9254 steel is combined with proprietary plasma face coating to extend life, eliminate ring breakage, reduce side wear and minimize groove pound out problems. The smaller cross-section of the steel ring allows the top ring groove to be moved closer to the top of the piston. This reduces the crevice volume portion around the top ring land for reduced unburned fuel. Smaller crosssections mean lower ring mass; this lighter ring design will better tolerate inertial forces and thus seal against the bottom of the ring groove more effectively. The smaller cross-section permitted with higher strength material greatly improves the ability of the ring to conform to cylinder bore distortion often found in today’s high output, high RPM engines. |
| 1.2MM, 1.5MM, 3.0MM Plasma-Moly Carbon Steel Ultra Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0066 $282.42 .035 • | 4.0350” | 301-0006 $156.39 | .147” | 302-1267 $56.75 | .150” | 303-0287 • | .153” |
| 315-0066 $282.42 .045 • | 4.0450” | 301-0007 $140.17 | .147” | 302-1264 $63.54 | .150” | 303-0288 • | .153” |
| 315-0066 $282.42 .065 | 4.0650” | 301-0010 $138.78 | .147” | 302-1209 $56.40 | .150” | 303-0289 • | .153” |
| 315-0065 $232.10 | 4.1250” | 301-0016 $138.78 | .147” | 302-1270 $74.06 | .150” | 303-0008 $75.84 | .153” |
| 315-0065 $232.10 .005 | 4.1300” | 301-0017 $155.60 | .147” | 302-1131 | .150” | 303-0008 $75.84 | .153” |
| 315-0065 $232.10 .020 • | 4.1450” | 301-0020 $138.08 | .147” | 302-1272 $73.47 | .150” | 303-0012 $75.84 • | .153” |
| 315-0065.025 • | 4.1500” | 301-0021 $138.78 | .147” | 302-1278 $73.47 | .150” | 303-0012 $75.84 • | .153” |
| 315-0065 $232.10 .030 • | 4.1550” | 301-0022 $107.29 • | .147” | 302-1273 $72.17 | .150” | 303-0014 $75.84 | .153” |
| 315-0065 $232.10 .035 | 4.1600” | 301-0023 $140.17 | .147” | 302-1280 $73.47 | .150” | 303-0014 $75.84 | .153” |
| 315-0065 $232.10 .040 • | 4.1650” | 301-0024 $107.29 • | .147” | 302-0083 • | .170” | 303-0016 $75.84 | .153” |
| 315-0065 $232.10 .045 | 4.1700” | 301-0025 $138.78 | .147” | 302-1312 $74.06 | .150” | 303-0016 $75.84 | .153” |
| 315-0065 $232.10 .060 • | 4.1850” | 301-0028 $140.17 • | .147” | 302-1275 $74.06 | .150” | 303-0020 $75.84 | .153” |
| 315-0065 $232.10 .065 • | 4.1900” | 301-0029 • | .147” | 302-1275 $74.06 | .150” | 303-0020 $75.84 | .153” |
| 315-0065 $232.10 .070 • | 4.1950” | 301-0030 $107.29 • | .147” | 302-1276 $73.47 | .150” | 303-0022 $52.33 | .153” |
| 1.2MM, 1.5MM, 3.0MM Plasma-Moly Carbon Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0064 $282.42 .005 | 4.0050” | 301-0002 $139.03 | .147” | 302-1262 $57.22 | .150” | 303-0072 $38.49 | .153” |
| 315-0064 $282.42 .025 | 4.0250” | 301-0004 $138.78 | .147” | 302-1263 $57.22 | .150” | 303-0074 $35.43 | .153” |
| 315-0064 $282.42 .035 | 4.0350” | 301-0006 $156.39 | .147” | 302-1267 $56.75 | .150” | 303-0075 $39.72 | .153” |
| 315-0064 $282.42 .045 | 4.0450” | 301-0007 $140.17 | .147” | 302-1264 $63.54 | .150” | 303-0076 $35.43 | .153” |
| 315-0064 $282.42 .065 | 4.0650” | 301-0010 $138.78 | .147” | 302-1209 $56.40 | .150” | 303-0079 $46.21 | .153” |
| 315-0067 $232.10 | 4.1250” | 301-0016 $138.78 | .147” | 302-1270 $74.06 | .150” | 303-0085 $39.72 | .153” |
| 315-0067 $232.10 .005 | 4.1300” | 301-0017 $155.60 | .147” | 302-1131 | .150” | 303-0085 $39.72 | .153” |
| 315-0067 $232.10 .020 | 4.1450” | 301-0020 $138.08 | .147” | 302-1272 $73.47 | .150” | 303-0089 $46.06 | .153” |
| 315-0067 $232.10 .025 | 4.1500” | 301-0021 $138.78 | .147” | 302-1278 $73.47 | .150” | 303-0089 $46.06 | .153” |
| 315-0067 $232.10 .030 • | 4.1550” | 301-0022 $107.29 • | .147” | 302-1273 $72.17 | .150” | 303-0090 $46.84 | .153” |
| 315-0067.035 $275.39 | 4.1600” | 301-0023 $140.17 | .147” | 302-1280 $73.47 | .150” | 303-0090 $46.84 | .153” |
| 315-0067 $232.10 .040 • | 4.1650” | 301-0024 $107.29 • | .147” | 302-0083 • | .170” | 303-0238 $34.85 | .153” |
| 315-0067 $232.10 .045 | 4.1700” | 301-0025 $138.78 | .147” | 302-1312 $74.06 | .150” | 303-0238 $34.85 | .153” |
| 315-0067 $232.10 .060 • | 4.1850” | 301-0028 $140.17 • | .147” | 302-1275 $74.06 | .150” | 303-0240 $46.68 | .153” |
| 315-0067 $232.10 .065 • | 4.1900” | 301-0029 • | .147” | 302-1275 $74.06 | .150” | 303-0240 $46.68 | .153” |
| 315-0067 $232.10 .070 • | 4.1950” | 301-0030 $107.29 • | .147” | 302-1276 $73.47 | .150” | 303-0243 $35.43 | .153” |
| 1.5MM, 1.5MM, 3.0MM Plasma-Moly Carbon Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0038 $222.17 .025 • | 3.9170” | 301-0113 $67.06 | .151” | 302-0215 $63.03 • | .163” | 303-0268 $51.72 | .151” |
| 315-0038 $222.17 .045 • | 3.9426” | 301-0115 $67.06 • | .151” | 302-0217 $63.03 | .163” | 303-0270 $51.72 | .151” |
| 315-0203 .025 • | 4.0250” | 301-1244 $155.90 | .151” | 302-1263 $57.22 | .150” | 303-0074 $35.43 | .151” |
| 315-0203 .035 | 4.0350” | 301-1245 $155.90 | .151” | 302-1267 $56.75 | .150” | 303-0075 $39.72 | .151” |
| 315-0203 .045 | 4.0450” | 301-1246 $155.90 | .151” | 302-1264 $63.54 | .150” | 303-0076 $35.43 | .151” |
| 315-0203 .065 | 4.0650” | 301-0975 $155.90 | .151” | 302-1209 $56.40 | .150” | 303-0079 $46.21 | .151” |
| 315-020 3.085 • | 4.0850” | 301-1248 $155.90 | .151” | 302-1245 $57.22 | .150” | 303-0081 $46.00 | .151” |
| 315-0204 .010 | 4.1300” | 301-0982 $173.91 | .151” | 302-1311 $80.53 | .150” | 303-0086 $39.51 | .151” |
| 315-0204 .015 | 4.1350” | 301-0983 $154.63 | .151” | 302-1271 $82.25 | .150” | 303-0086 $39.51 | .151” |
| 315-0204 .025 | 4.1450” | 301-0985 $201.80 | .151” | 302-0079 $63.03 | .150” | 303-0088 $52.63 | .151” |
| 315-0204 .030 | 4.1500” | 301-0986 $155.90 | .151” | 302-1278 $73.47 | .150” | 303-0687 | .151” |
| 315-0204 .035 | 4.1550” | 301-0987 $151.89 | .151” | 302-1273 $72.17 | .150” | 303-0687 | .151” |
| 315-0204 .050 | 4.1700” | 301-0990 $155.90 | .151” | 302-1312 $74.06 | .150” | 303-0239 $46.68 | .151” |
| 315-0204 .070 | 4.1900” | 301-0994 $154.63 | .151” | 302-1275 $74.06 | .150” | 303-0241 $51.72 | .151” |
| 1.5MM, 1.5MM, 3.0MM Plasma-Moly Carbon Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0039 $196.03 .025 | 3.5762” | 301-0108 $70.61 | .155” | 302-0210 $44.76 | .166” | 303-0515 $35.79 | .151” |
| 315-0039 $196.03 .035 • | 3.5862” | 301-0109 $67.06 • | .155” | 302-0211 $39.43 • | .166” | 303-0516 $51.72 | .151” |
| 315-003 9 .045 • | 3.5962” | 301-0110 $67.06 • | .155” | 302-0212 $39.43 • | .166” | 303-0517 $51.72 | .151” |
| 315-0037 $222.17 .005 • | 3.9027” | 301-0495 $106.31 | .151” | 302-0213 $63.03 • | .163” | 303-0279 $51.72 | .146” |
| 315-0037 $222.17 .025 • | 3.9170” | 301-0113 $67.06 | .151” | 302-0215 $63.03 • | .163” | 303-0281 $51.72 | .146” |
| 315.0037 .045 • | 3.9426” | 301-0115 $67.06 • | .151” | 302-0217 $63.03 | .163” | 303-0283 $39.43 | .146” |
| 315-0060 $282.42 .025 • | 4.0250” | 301-1244 $155.90 | .151” | 302-1263 $57.22 | .150” | 303-0307 $46.21 | .151” |
| 315-0060 $282.42 .030 | 4.0300” | 301-0508 $154.36 | .151” | 302-1206 $56.65 | .150” | 303-0075 $39.72 | .151” |
| 315-0060 $282.42 .035 | 4.0350” | 301-1245 $155.90 | .151” | 302-1267 $56.75 | .150” | 303-0308 $57.96 | .151” |
| 315-0060 $282.42 .045 | 4.0450” | 301-1246 $155.90 | .151” | 302-1264 $63.54 | .150” | 303-0309 $56.81 | .151” |
| 315-0060 $282.42 .065 | 4.0650” | 301-0975 $155.90 | .151” | 302-1209 $56.40 | .150” | 303-0311 $51.01 | .151” |
| 315-0200 .010 • | 4.1300” | 301-0982 $173.91 | .151” | 302-1311 $80.53 | .150” | 303-0320 $57.37 | .151” |
| 315-0200 .015 | 4.1350” | 301-0983 $154.63 | .151” | 302-1271 $82.25 | .150” | 303-0320 $57.37 | .151” |
| 1.5MM, 1.5MM, 4.0MM Plasma-Moly Carbon Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0020 $196.19 | 4.0000” | 301-0506 $155.90 | .155” | 302-1204 $56.65 | .150” | 303-0291 $60.35 | .156” |
| 315-0020 $196.19 .030 • | 4.0300” | 301-0508 $154.36 | .151” | 302-1206 $56.65 | .150” | 303-0293 • | .156” |
| 315-0020 $196.19 .060 | 4.0600” | 301-0510 $138.06 | .155” | 302-0295 $63.03 | .170” | 303-0295 $60.35 | .156” |
| 1/16”, 1/16”, 3.0MM Plasma-Moly Carbon Steel Ultra Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0146 $232.10 • | 4.1250” | 301-1102 $126.15 | .190” | 302-0127 $56.19 | .170” | 303-0007 $75.84 • | .153” |
| 315-0146 $232.10 .005 | 4.1300” | 301-1103 $163.82 | .190” | 302-0128 $52.25 | .170” | 303-0008 $75.84 | .153” |
| 315-0146 $232.10 .015 | 4.1400” | 301-1214 $164.66 | .190” | 302-0292 $56.65 | .170” | 303-0010 $91.39 | .153” |
| 315-0146 $232.10 .025 • | 4.1500” | 301-1104 $164.66 | .190” | 302-0130 $56.75 | .170” | 303-0012 $75.84 • | .153” |
| 315-0146 $232.10 .030 | 4.1550” | 300-1105 | .190” | 302-0131 $56.65 | .170” | 303-0014 $75.84 | .153” |
| 315-0146 $232.10 .035 | 4.1600” | 301-1106 $164.66 | .190” | 302-0132 $56.75 | .170” | 303-0014 $75.84 | .153” |
| 315-0146 $232.10 .045 | 4.1700” | 301-1107 $164.66 | .190” | 302-0134 $63.03 | .170” | 303-0016 $75.84 | .153” |
| 315-0146 $232.10 .065 | 4.1900” | 301-1101 $107.40 | .190” | 302-0138 $56.65 | .170” | 303-0020 $75.84 | .153” |
| 1/16”, 1/16”, 3.0MM Plasma-Moly Carbon Steel Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0049 $191.38 .005 | 4.0050” | 301-1013 $139.63 | .190” | 302-0109 $63.19 | .170” | 303-0072 $38.49 | .151” |
| 315-0049 $191.38 .025 | 4.0250” | 301-1015 $138.27 | .190” | 302-0111 $56.65 | .170” | 303-0074 $35.43 | .151” |
| 315-0049 $191.38 .030 | 4.0300” | 301-1016 $138.27 | .190” | 302-0112 $56.65 | .170” | 303-0075 $39.72 | .151” |
| 315-0049 $191.38 .035 | 4.0350” | 301-1017 $139.63 | .190” | 302-0113 $56.75 | .170” | 303-0075 $39.72 | .151” |
| 315-0049 $191.38 .040 | 4.0400” | 301-1018 $139.63 | .190” | 302-0114 $48.69 | .170” | 303-0076 $35.43 | .151” |
| 315-0049 $191.38 .045 | 4.0450” | 301-1019 $139.63 | .190” | 302-0115 $56.75 | .170” | 303-0076 $35.43 | .151” |
| 315-0049 $191.38 .060 | 4.0600” | 301-1020 $139.63 | .190” | 302-0116 $56.65 | .170” | 303-0079 $46.21 | .151” |
| 315-0049 $191.38 .065 | 4.0650” | 301-1021 $139.63 | .190” | 302-0117 $56.75 | .170” | 303-0079 $46.21 | .151” |
| 315-0049 $191.38 .085 | 4.0850” | 301-1218 $139.63 | .190” | 302-0121 $56.65 | .170” | 303-0081 $46.00 | .151” |
| 315-0071 $198.51 | 4.1250” | 301-1102 $126.15 | .190” | 302-0127 $56.19 | .170” | 303-0085 $39.72 | .151” |
| 315-0071 $198.51 .005 | 4.1300” | 301-1103 $163.82 | .190” | 302-0128 $52.25 | .170” | 303-0085 $39.72 | .151” |
| 315-0071 $198.51 .015 | 4.1400” | 301-1214 $164.66 | .190” | 302-0292 $56.65 | .170” | 303-0087 $39.89 | .151” |
| 315-0071 $198.51 .025 | 4.1500” | 301-1104 $164.66 | .190” | 302-0130 $56.75 | .170” | 303-0089 $46.06 | .151” |
| 315-0071 $198.51 .030 | 4.1550” | 301-1105 $164.66 | .190” | 302-0131 $56.65 | .170” | 303-0090 $46.84 | .151” |
| 315-0071 $198.51 .035 | 4.1600” | 301-1106 $164.66 | .190” | 302-0132 $56.75 | .170” | 303-0090 $46.84 | .151” |
| 315-0071 $198.51 .045 | 4.1700” | 301-1107 $164.66 | .190” | 302-0134 $63.03 | .170” | 303-0238 $34.85 | .151” |
| 315-0071 $198.51 .065 | 4.1900” | 301-1101 $107.40 | .190” | 302-0138 $56.65 | .170” | 303-0240 $46.68 | .151” |
| 315-0141 .005 | 4.5050” | 301-1120 $174.77 | .190” | 302-0319 $75.13 | .170” | 303-0092 $46.32 | .151” |
| 315-0142 .005 | 4.6050” | 301-1125 $174.77 | .190” | 302-0323 $75.48 | .170” | 303-0095 $35.79 | .151” |
| 1/16”, 1/16”, 3.0MM Plasma-Moly Carbon Steel Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0139 $179.78 .005 | 4.0050” | 301-1013 $139.63 | .190” | 302-0109 $63.19 | .170” | 303-0305 $57.37 | .151” |
| 315-0139 $179.78 .025 | 4.0250” | 301-1015 $138.27 | .190” | 302-0111 $56.65 | .170” | 303-0307 $46.21 | .151” |
| 315-0139 $179.78 .030 | 4.0300” | 301-1016 $138.27 | .190” | 302-0112 $56.65 | .170” | 303-0308 $57.96 | .151” |
| 315-0139 $179.78 .035 | 4.0350” | 301-1017 $139.63 | .190” | 302-0113 $56.75 | .170” | 303-0308 $57.96 | .151” |
| 315-0139 $179.78 .040 | 4.0400” | 301-1018 $139.63 | .190” | 302-0114 $48.69 | .170” | 303-0309 $56.81 | .151” |
| 315-0139 $179.78 .045 | 4.0450” | 301-1019 $139.63 | .190” | 302-0115 $56.75 | .170” | 303-0309 $56.81 | .151” |
| 315-0139 $179.78 .060 | 4.0600” | 301-1020 $139.63 | .190” | 302-0116 $56.65 | .170” | 303-0311 $51.01 | .151” |
| 315-0139 $179.78 .065 | 4.0650” | 301-1021 $139.63 | .190” | 302-0117 $56.75 | .170” | 303-0311 $51.01 | .151” |
| 315-0143 $290.97 | 4.1250” | 301-1102 $126.15 | .190” | 302-0127 $56.19 | .170” | 303-0318 $37.05 | .153” |
| 315-0143 $290.97 .005 | 4.1300” | 301-1103 $163.82 | .190” | 302-0128 $52.25 | .170” | 303-0319 $57.96 | .153” |
| 315-0143 $290.97 .015 | 4.1400” | 301-1214 $164.66 | .190” | 302-0292 $56.65 | .170” | 303-0321 $49.89 | .153” |
| 315-0143 $290.97 .030 | 4.1550” | 301-1105 $164.66 | .190” | 302-0131 $56.65 | .170” | 303-0325 $35.08 | .153” |
| 315-0143 $290.97 .035 | 4.1600” | 301-1106 $164.66 | .190” | 302-0132 $56.75 | .170” | 303-0325 $35.08 | .153” |
| 315-0143 $290.97 .045 | 4.1700” | 301-1107 $164.66 | .190” | 302-0134 $63.03 | .170” | 303-0238 $34.85 | .153” |
| 1/16”, 1/16”, 1/8” Plasma-Moly Carbon Steel Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0033 $195.63 .025 • | 4.0250” | 301-1015 $138.27 | .190” | 302-0111 $56.65 | .170” | 303-0035 $51.72 • | .201” |
| 315-0033 $195.63 .030 | 4.0300” | 301-1016 $138.27 | .190” | 302-0112 $56.65 | .170” | 303-0036 $51.72 | .201” |
| 315-0033 $195.63 .035 • | 4.0350” | 301-1017 $139.63 | .190” | 302-0113 $56.75 | .170” | 303-0036 $51.72 | .201” |
| 315-0033 $195.63 .045 • | 4.0450” | 301-1019 $139.63 | .190” | 302-0115 $56.75 | .170” | 303-0037 $51.72 • | .201” |
| 315-0033 $195.63 .060 | 4.0600” | 301-1020 $139.63 | .190” | 302-0116 $56.65 | .170” | 303-0038 $51.72 | .201” |
| 315-0033 $195.63 .065 | 4.0650” | 301-1021 $139.63 | .190” | 302-0117 $56.75 | .170” | 303-0038 $51.72 | .201” |
| 315-0021 $222.17 .035 • | 4.1600” | 301-1106 $164.66 | .190” | 302-0132 $56.75 | .170” | 303-0043 $51.72 | .201” |
| 315-002 1.065 • | 4.1900” | 301-1101 $107.40 | .190” | 302-0138 $56.65 | .170” | 303-0045 $51.72 • | .201” |
| 36 | © MAHLE 2016 1/16”, 1/16”, 3/16” Plasma-Moly Carbon Steel Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0005 $206.72 .005 | 4.0050” | 301-1013 $139.63 | .190” | 302-0109 $63.19 | .170” | 303-0155 $51.72 | .201” |
| 315-0005 $206.72 .025 • | 4.0250” | 301-1015 $138.27 | .190” | 302-0111 $56.65 | .170” | 303-0157 $51.72 • | .201” |
| 315-0005 $206.72 .030 | 4.0300” | 301-1016 $138.27 | .190” | 302-0112 $56.65 | .170” | 303-0158 $62.77 | .201” |
| 315-0005 $206.72 .035 | 4.0350” | 301-1017 $139.63 | .190” | 302-0113 $56.75 | .170” | 303-0158 $62.77 | .201” |
| 315-0005 $206.72 .045 | 4.0450” | 301-1019 $139.63 | .190” | 302-0115 $56.75 | .170” | 303-0159 $51.72 | .201” |
| 315-0005 $206.72 .065 | 4.0650” | 301-1021 $139.63 | .190” | 302-0117 $56.75 | .170” | 303-0161 $58.24 | .201” |
| 315-0008 $196.03 .035 | 4.0750” | 301-1217 $139.63 | .190” | 302-0119 $56.65 | .170” | 303-0162 $51.72 | .201” |
| 315-0005 $206.72 .085 | 4.0850” | 300-1218 | .190” | 302-0121 $56.65 | .170” | 303-0163 $51.72 | .201” |
| 315-0004 $182.58 • | 4.1250” | 301-1102 $126.15 | .190” | 302-0127 $56.19 | .170” | 303-0167 $51.72 • | .201” |
| 315-0004 $182.58 .005 | 4.1300” | 301-1103 $163.82 | .190” | 302-0128 $52.25 | .170” | 303-0168 $35.79 | .201” |
| 315-0004 $182.58 .015 | 4.1400” | 301-1214 $164.66 | .190” | 302-0292 $56.65 | .170” | 303-0169 $46.21 | .201” |
| 315-0004 $182.58 .025 | 4.1500” | 301-1104 $164.66 | .190” | 302-0130 $56.75 | .170” | 303-0170 $62.77 | .201” |
| 315-0004 $182.58 .035 | 4.1600” | 301-1106 $164.66 | .190” | 302-0132 $56.75 | .170” | 303-0171 $58.24 | .201” |
| 315-0004 $182.58 .045 • | 4.1700” | 301-1107 $164.66 | .190” | 302-0134 $63.03 | .170” | 303-0658 • | .201” |
| 315-0004 $182.58 .065 | 4.1900” | 301-1101 $107.40 | .190” | 302-0138 $56.65 | .170” | 303-0174 $46.44 | .201” |
| 315-0002 $245.43 .005 | 4.2550” | 301-1109 $164.66 | .190” | 302-0140 $57.22 | .170” | 303-0175 $51.72 | .201” |
| 315-0002 $245.43 .035 | 4.2850” | 301-1111 $104.74 | .190” | 302-0142 $56.19 | .170” | 303-0177 $51.72 | .201” |
| 315-0002 $245.43 .065 | 4.3150” | 301-1113 $163.31 | .190” | 302-0146 $56.75 | .170” | 303-0179 $51.72 | .201” |
| 315-0003 $201.97 .065 | 4.3850” | 301-1116 $159.89 | .190” | 302-0231 $50.97 • | .204” | 303-0182 $51.72 | .201” |
| 315-0010 $222.17 .035 | 4.3950” | 301-1117 $159.89 | .190” | 302-1075 $56.65 | .170” | 303-0183 $58.85 | .201” |
| 315-0058 $222.17 .005 | 4.4450” | 301-1118 $159.89 | .190” | 302-0316 $56.65 | .170” | 303-0661 $51.72 | .201” |
| 315-0001 $230.84 .005 | 4.5050” | 301-1120 $174.77 | .190” | 302-0319 $75.13 | .170” | 303-0204 $63.39 | .201” |
| 315-0001 $230.84 .035 | 4.5350” | 301-1121 $174.77 | .190” | 302-0320 $75.73 | .170” | 303-0205 • | .201” |
| 315-0001 $230.84 .065 | 4.5650” | 301-1123 $174.77 | .190” | 302-0321 $75.48 | .170” | 303-0206 $62.77 | .201” |
| 315-0105 .005 | 4.5675” | 301-1124 $174.77 | .190” | 302-0902 $85.34 | .212” | 303-0663 $51.72 | .201” |
| 315-0006 $245.69 .005 | 4.6050” | 301-1125 $174.77 | .190” | 302-0323 $75.48 | .170” | 303-0883 $55.52 | .170” |
| 315-0006 $245.69 .025 | 4.6300” | 301-1127 $174.77 | .190” | 302-0324 $76.10 | .170” | 303-0893 $55.95 | .170” |
| 1/16”, 1/16”, 3/16” Plasma-Moly Carbon Steel Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0036 $174.63 | 4.0000” | 301-1012 $106.99 | .190” | 302-0108 $56.65 | .170” | 303-0115 $39.30 | .201” |
| 315-0036 $174.63 .005 | 4.0050” | 301-1013 $139.63 | .190” | 302-0109 $63.19 | .170” | 303-0115 $39.30 | .201” |
| 315-0036 $174.63 .025 | 4.0250” | 301-1015 $138.27 | .190” | 302-0111 $56.65 | .170” | 303-0117 $39.89 | .201” |
| 315-0036 $174.63 .030 | 4.0300” | 301-1016 $138.27 | .190” | 302-0112 $56.65 | .170” | 303-0118 $35.12 | .201” |
| 315-0036 $174.63 .035 | 4.0350” | 301-1017 $139.63 | .190” | 302-0113 $56.75 | .170” | 303-0118 $35.12 | .201” |
| 315-0036 $174.63 .040 | 4.0400” | 301-1018 $139.63 | .190” | 302-0114 $48.69 | .170” | 303-0119 $35.43 | .201” |
| 315-0036 $174.63 .045 | 4.0450” | 301-1019 $139.63 | .190” | 302-0115 $56.75 | .170” | 303-0119 $35.43 | .201” |
| 315-0036 $174.63 .060 | 4.0600” | 301-1020 $139.63 | .190” | 302-0116 $56.65 | .170” | 303-0121 $35.43 | .201” |
| 315-0036 $174.63 .065 | 4.0650” | 301-1021 $139.63 | .190” | 302-0117 $56.75 | .170” | 303-0121 $35.43 | .201” |
| 315-0036 $174.63 .075 | 4.0750” | 301-1217 $139.63 | .190” | 302-0119 $56.65 | .170” | 303-0122 $51.72 | .201” |
| 315-0036 $174.63 .085 | 4.0850” | 301-1218 $139.63 | .190” | 302-0121 $56.65 | .170” | 303-0123 $35.79 | .201” |
| 1/16”, 1/16”, 3/16” Plasma-Moly Carbon Steel Standard Tension Engine Sets (Cont’d.) | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0032 $177.00 | 4.1250” | 301-1102 $126.15 | .190” | 302-0127 $56.19 | .170” | 303-0128 $39.51 | .201” |
| 315-0032 $177.00 .005 | 4.1300” | 301-1103 $163.82 | .190” | 302-0128 $52.25 | .170” | 303-0128 $39.51 | .201” |
| 315-0032 $177.00 .025 | 4.1500” | 301-1104 $164.66 | .190” | 302-0130 $56.75 | .170” | 303-0130 $35.79 | .201” |
| 315-0032 $177.00 .030 | 4.1550” | 301-1105 $164.66 | .190” | 302-0131 $56.65 | .170” | 303-0131 $35.60 | .201” |
| 315-0032 $177.00 .035 | 4.1600” | 301-1106 $164.66 | .190” | 302-0132 $56.75 | .170” | 303-0131 $35.60 | .201” |
| 315-0032 $177.00 .045 | 4.1700” | 301-1107 $164.66 | .190” | 302-0134 $63.03 | .170” | 303-0132 $36.03 | .201” |
| 315-0032 $177.00 .065 | 4.1900” | 301-1101 $107.40 | .190” | 302-0138 $56.65 | .170” | 303-0133 $46.21 | .201” |
| 315-0035 $239.55 | 4.2500” | 301-1108 $126.15 | .190” | 302-0139 $57.22 | .170” | 303-0134 $35.79 | .201” |
| 315-0035 $239.55 .005 | 4.2550” | 301-1109 $164.66 | .190” | 302-0140 $57.22 | .170” | 303-0134 $35.79 | .201” |
| 315-0035 $239.55 .030 | 4.2800” | 301-1110 $126.15 | .190” | 302-0141 $56.65 | .170” | 303-0136 $35.79 | .201” |
| 315-0035 $239.55 .035 | 4.2850” | 301-1111 $104.74 | .190” | 302-0142 $56.19 | .170” | 303-0136 $35.79 | .201” |
| 315-0035 $239.55 .060 | 4.3100” | 301-1112 $164.66 | .190” | 302-0145 $57.22 | .170” | 303-0138 $35.58 | .201” |
| 315-0035 $239.55 .065 | 4.3150” | 301-1113 $163.31 | .190” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| 315-0029 $183.04 .005 | 4.3250” | 301-1108 $126.15 | .190” | 302-1067 $56.19 | .170” | 303-0258 $52.09 | .201” |
| 315-0029 $183.04 .035 | 4.3550” | 301-1114 $159.89 | .190” | 302-1069 $55.75 | .170” | 303-0261 $60.74 | .201” |
| 315-0029 $183.04 .065 | 4.3850” | 301-1116 $159.89 | .190” | 302-0231 $50.97 • | .201” | 303-0141 $51.72 | .201” |
| 315-0025 $197.23 .035 | 4.3950” | 301-1117 $159.89 | .190” | 302-1075 $56.65 | .170” | 303-0142 $35.43 | .201” |
| 315-0057 $222.17 .005 | 4.4450” | 301-1118 $159.89 | .190” | 302-0316 $56.65 | .170” | 303-0642 $51.72 | .201” |
| 315-0053 $213.74 .005 | 4.5050” | 301-1120 $174.77 | .190” | 302-0319 $75.13 | .170” | 303-0359 $34.49 | .201” |
| 315-0053 $213.74 .035 | 4.5350” | 301-1121 $174.77 | .190” | 302-0320 $75.73 | .170” | 303-0360 $58.24 | .201” |
| 315-0053 $213.74 .065 | 4.5650” | 301-1123 $174.77 | .190” | 302-0321 $75.48 | .170” | 303-0361 $58.24 | .201” |
| 315-0106 .005 | 4.5675” | 301-1124 $174.77 | .190” | 302-0902 $85.34 | .212” | 303-0669 $57.78 | .201” |
| 315-0056 $213.74 .005 | 4.6050” | 301-1125 $174.77 | .190” | 302-0323 $75.48 | .170” | 303-0884 $55.52 | .170” |
| 315-0056 $213.74 .025 | 4.6300” | 301-1127 $174.77 | .190” | 302-0324 $76.10 | .170” | 303-0894 $46.68 | .170” |
| 5/64”, 5/64”, 3/16” Plasma-Moly Carbon Steel Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0051 $185.81 | 4.0000” | 301-0966 $104.97 | .147” | 302-0265 $48.94 | .187” | 303-0155 $51.72 | .201” |
| 315-005 1.030 | 4.0300” | 301-0969 $93.88 | .147” | 302-0271 $54.58 | .187” | 303-0158 $62.77 | .201” |
| 315-0051 $185.81 .040 | 4.0400” | 301-0970 $93.88 | .147” | 302-0272 $48.67 | .187” | 303-0159 $51.72 | .201” |
| 315-0051 $185.81 .060 | 4.0600” | 301-0971 $93.88 | .147” | 302-0274 $48.94 | .187” | 303-0161 $58.24 | .201” |
| 315-0051 $185.81 .065 • | 4.0650” | 301-0971 $93.88 | .147” | 302-0274 $48.94 | .187” | 303-0161 $58.24 | .201” |
| 5/64”, 5/64”, 3/16” Plasma-Moly Carbon Steel Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0034 $166.47 | 4.0000” | 301-0966 $104.97 | .147” | 302-0265 $48.94 | .187” | 303-0115 $39.30 | .201” |
| 315-0034 $166.47 .030 | 4.0300” | 301-0969 $93.88 | .147” | 302-0271 $54.58 | .187” | 303-0118 $35.12 | .201” |
| 315-0034 $166.47 .040 | 4.0400” | 301-0970 $93.88 | .147” | 302-0272 $48.67 | .187” | 303-0119 $35.43 | .201” |
| 315-0034 $166.47 .060 | 4.0600” | 301-0971 $93.88 | .147” | 302-0274 $48.94 | .187” | 303-0121 $35.43 | .201” |
| 315-0034 $166.47 .065 • | 4.0650” | 301-0971 $93.88 | .147” | 302-0274 $48.94 | .187” | 303-0121 $35.43 | .201” |
Page 38
PLASMA-MOLY DUCTILE RING SETS
| MAHLE Original® plasma-moly ductile ring sets are designed for the serious racer. These sets feature rings that maximize combustion sealing and minimize frictional losses to increase horsepower and oil control. These sets include reduced radial wall (RRW) top rings, and CP-20™ oil rings to reduce tension, improve conformability and maximize power output. Ring sets with low and ultra low tension oil rings are not recommended for street use and should utilize a vacuum pump for maximum performance. |
| .043”, 1/16”, 3/16” Plasma-Moly Ductile Iron Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0113 .035 • | 4.2850” | 300-0355 $107.29 • | .198” | 302-0142 $56.19 | .170” | 303-0177 $51.72 | .201” |
| 315-0113 .065 | 4.3150” | 300-0356 $107.29 | .198” | 302-0146 $56.75 | .170” | 303-0179 $51.72 | .201” |
| .043”, 1/16”, 3/16” Plasma-Moly Ductile Iron Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0115 .065 | 4.3150” | 300-0356 $107.29 | .198” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| 315-0116 .005 • | 4.3800” | 300-0361 $124.74 | .204” | 302-1073 $55.30 | .170” | 303-0290 $46.30 | .201” |
| .043”, 1/16”, 3/16” Plasma-Moly Ductile Iron Low Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0123 .035 | 4.2850” | 300-0383 $136.86 | .160” | 302-0142 $56.19 | .170” | 303-0177 $51.72 | .201” |
| 315-0123 .065 | 4.3150” | 300-0384 $156.04 | .160” | 302-0146 $56.75 | .170” | 303-0179 $51.72 | .201” |
| .043”, 1/16”, 3/16” Plasma-Moly Ductile Iron Standard Tension Reduced Radial Wall Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0122 $223.37 .045 | 4.1600” | 300-0015 $114.00 | .160” | 302-0132 $56.75 | .170” | 303-0131 $35.60 | .201” |
| 315-0124 .035 | 4.2850” | 300-0383 $136.86 | .160” | 302-0142 $56.19 | .170” | 303-0136 $35.79 | .201” |
| 315-0124 .065 | 4.3150” | 300-0384 $156.04 | .160” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| 1/16”, 1/16”, 3.0MM Plasma-Moly Ductile Iron Ultra Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0146 $232.10 .010 | 4.1350” | 300-0107 $109.99 | .193” | 302-0201 | .170” | 303-0009 $75.84 | .153” |
| 315-0146 $232.10 .040 | 4.1650” | 300-0111 $129.30 | .193” | 302-0133 $56.65 | .170” | 303-0016 $75.84 | .153” |
| 1/16”, 1/16”, 3.0MM Plasma-Moly Ductile Iron Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0071 $198.51 .010 • | 4.1350” | 300-0107 $109.99 | .193” | 302-0291 $63.03 | .170” | 303-0086 $39.51 | .151” |
| 315-0071 $198.51 .040 | 4.1650” | 300-0111 $129.30 | .193” | 302-0133 $56.65 | .170” | 303-0238 $34.85 | .151” |
| 1/16”, 1/16”, 3.0MM Plasma-Moly Ductile Iron Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0143.010 • | 4.1350” | 300-0107 $109.99 | .193” | 302-0291 $63.03 | .170” | 303-0320 $57.37 | .153” |
| 315-0143 $290.97 .040 | 4.1650” | 300-0111 $129.30 | .193” | 302-0133 $56.65 | .170” | 303-0238 $34.85 | .153” |
| 1/16”, 1/16”, 3/16” Plasma-Moly Ductile Iron Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0011 $187.32 .005 • | 3.8050” | 300-0172 $97.92 • | .178” | 302-0222 $44.27 • | .178” | 303-0273 $51.72 | .201” |
| 315-0012 $196.03 .035 • | 3.9100” | 300-0178 $103.26 • | .181” | 302-0228 $44.27 • | .181” | 303-0147 $51.72 | .201” |
| 315-0012 $196.03 .065 • | 3.9400” | 300-0179 $103.26 • | .181” | 302-0229 $44.27 • | .181” | 303-0151 $51.72 | .201” |
| 315-0004 $182.58 .010 • | 4.1350” | 300-0107 $109.99 | .193” | 302-0291 $63.03 | .170” | 303-0657 $46.21 | .201” |
| 315-0014 $222.17 .005 | 4.3800” | 300-0180 $147.47 | .204” | 302-1073 $55.30 | .170” | 303-0278 $46.68 | .201” |
| 315-0105 .045 | 4.6075” | 300-0612 $146.20 | .212” | 302-0323 $75.48 | .170” | 303-0202 $58.85 | .201” |
| 1/16”, 1/16”, 3/16” Plasma-Moly Ductile Iron Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0136 .005 • | 3.8050” | 300-0172 $97.92 • | .178” | 302-0222 $44.27 • | .178” | 303-0600 $60.35 | .201” |
| 315-0137 .035 • | 3.9050” | 300-0178 $103.26 • | .181” | 302-0228 $44.27 • | .181” | 303-0107 $51.72 | .201” |
| 315-0137 .065 • | 3.9400” | 300-0179 $103.26 • | .181” | 302-0229 $44.27 • | .181” | 303-0111 $51.72 | .201” |
| 315-0032 $177.00 .040 | 4.1650” | 300-0111 $129.30 | .193” | 302-0133 $56.65 | .170” | 303-0132 $36.03 | .201” |
| 315-0029 $183.04 .060 | 4.3800” | 300-0180 $147.47 | .204” | 302-1073 $55.30 | .170” | 303-0141 $51.72 | .201” |
| 315-0106 .045 | 4.6075” | 300-0612 $146.20 | .212” | 302-0940 $92.08 | .175” | 303-0362 $46.30 | .201” |
| .031”, 1/16”, 3/16” Plasma-Moly Ductile Iron Dykes Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0016 $279.53 .065 • | 4.0650” | 301-0076 $183.75 • | .173” | 302-0117 $56.75 | .170” | 303-0161 $58.24 | .201” |
| 315-0194 .065 • | 4.3150” | 301-0088 $191.71 • | .173” | 302-0146 $56.75 | .170” | 303-0179 $51.72 | .201” |
| 315-0195 .005 • | 4.3800” | 301-0090 $205.21 • | .173” | 302-1073 $55.30 | .170” | 303-0278 $46.68 | .201” |
| .031”, 1/16”, 3/16” Plasma-Moly Ductile Iron Dykes Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0196 .065 • | 4.0650” | 301-0076 $183.75 • | .173” | 302-0117 $56.75 | .170” | 303-0121 $35.43 | .201” |
| 315-0198 .065 • | 4.3150” | 301-0088 $191.71 • | .173” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| 315-0199 .005 • | 4.3800” | 301-0090 $205.21 • | .173” | 302-1073 $55.30 | .170” | 303-0290 $46.30 | .201” |
| .017”, 1/16”, 3/16” Plasma-Moly Ductile Iron Dykes Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0187 .005 | 4.1900” | 301-0060 $221.90 | .173” | 302-0147 $104.99 • | .192” | 303-0133 $46.21 | .201” |
| 315-0188 .005 | 4.2550” | 301-0062 $224.84 | .173” | 302-0140 $57.22 | .170” | 303-0134 $35.79 | .201” |
| 315-0188 .065 • | 4.3150” | 301-0064 $189.11 • | .173” | 302-0146 $56.75 | .170” | 303-0138 $35.58 | .201” |
| .017”, 1/16”, 3/16” Plasma-Moly Ductile Iron Dykes High Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0190 .005 | 4.1900” | 301-0060 $221.90 | .173” | 302-0147 $104.99 • | .192” | 303-0186 $60.23 | .201” |
| 315-0191 .005 | 4.2550” | 301-0062 $224.84 | .173” | 302-0140 $57.22 | .170” | 303-0187 $35.79 | .201” |
| 315-0191 .065 • | 4.3150” | 301-0064 $189.11 • | .173” | 302-0146 $56.75 | .170” | 303-0646 $46.68 | .201” |
PLASMA-MOLY DUCTILE RING SETS
| 40 | © MAHLE 2016 5/64”, 5/64”, 3/16” Plasma-Moly Ductile Iron Low Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0051 $185.81 .005 • | 4.0050” | 300-0653 $104.63 | .187” | 302-0266 $49.64 • | .187” | 303-0155 $51.72 | .201” |
| 315-0051 $185.81 .045 | 4.0450” | 300-0230 $104.63 | .187” | 302-0272 $48.67 | .187” | 303-0159 $51.72 • | .201” |
| 5/64”, 5/64”, 3/16” Plasma-Moly Ductile Iron Standard Tension Engine Sets | |||||||
|
Part Number Set |
Bore | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0034 $166.47 .005 • | 4.0050” | 300-0653 $104.63 | .187” | 302-0266 $49.64 • | .187” | 303-0115 $39.30 | .201” |
| 315-0034 $166.47 .035 • | 4.0350” | 300-0565 • | .187” | 302-0271 $54.58 | .187” | 303-0118 $35.12 | .201” |
| 315-0034 $166.47 .045 | 4.0450” | 300-0230 $104.63 | .187” | 302-0272 $48.67 | .187” | 303-0119 $35.43 | .201” |
| 315-0022 $196.03 .005 | 4.1300” | 300-0197 $101.95 | .193” | 302-0243 $49.64 | .193” | 303-0128 $39.51 | .201” |
| 315-0023 $197.23 .030 | 4.1550” | 300-0201 $101.95 | .193” | 302-0247 $45.61 | .193” | 303-0131 $35.60 | .201” |
| 315-0022 $196.03 .065 • | 4.1900” | 300-0199 $223.33 | .193” | 302-0245 $49.64 • | .193” | 303-0133 $46.21 | .201” |
| 315-0028 $239.69 | 4.2500” | 300-0214 $101.95 | .198” | 302-0257 $49.85 | .198” | 303-0134 $35.79 | .201” |
| 315-0028 $239.69 .005 • | 4.2550” | 300-0215 $101.95 • | .198” | 302-0258 $49.64 • | .198” | 303-0134 $35.79 | .201” |
| 315-0028 $239.69 .030 | 4.2800” | 300-0216 $101.95 | .198” | 302-0259 $50.36 | .198” | 303-0136 $35.79 | .201” |
| 315-0028 $239.69 .060 | 4.3100” | 300-0218 $101.95 | .198” | 302-0261 $50.36 | .198” | 303-0138 $35.58 | .201” |
| 315-0040 $222.17 .035 • | 4.3475” | 300-0246 $130.12 • | .201” | 302-0300 $50.97 • | .201” | 303-0260 $51.72 • | .201” |
| 315-0019 $222.17 .035 | 4.3550” | 300-0190 $130.12 | .201” | 302-1161 $58.79 | .201” | 303-0261 $60.74 | .201” |
| 315-0019 $222.17 .065 • | 4.3850” | 300-0191 $130.12 • | .201” | 302-0240 $50.97 | .201” | 303-0141 $51.72 | .201” |
METRIC RING SETS
| MAHLE Original® 1.0MM upper compression rings utilize a proprietary HV385 thermal spray face coating developed specifically for extreme operating conditions combined with MAHLE’s SAE 9254 steel base material providing a compression ring with unequaled strength and fatigue resistance which extends overall life and reduces breakage. MAHLE Original® 1.2MM SAE 9254 steel base material Napier lower compression rings provide unequaled durability levels demanded by today’s high performance applications. MAHLE Original® 2.8MM CP-20™ performance oil control rings are designed to provide superior oil control in all performance applications. MAHLE Original® performance oil rings utilize bore specific designs and an exclusive 20 degree ear angle for the best possible side seal in the piston ring groove. |
| 1.0MM, 1.2MM, 2.8MM HV385 9254 Steel Standard Tension Reduced Radial Wall Engine Sets |
|
Part Number Set |
Bore (MM / Inch) | Top Ring | Radial | Second Ring | Radial | Oil Ring | Radial |
| 315-0208 $97.12 * |
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|
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|
|
|
|
| 315-0209 $97.12 * |
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|
|
|
|
|
| 315-0210 $104.86 * |
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| 315-0211 $104.86 * |
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| 315-0212 $97.12 * |
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|
| 315-0213 $97.12 * |
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|
|
| 315-0214 $104.86 * |
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|
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|
| 315-0215 $97.12 * |
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|
| 315-0216 $97.12 * |
|
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|
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|
| 315-0217 $97.12 * |
|
|
|
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|
|
|
| 315-0218 $104.86 * |
|
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|
| 315-0219 $104.86 * |
|
|
|
|
|
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|
| 315-0220 $104.86 * |
|
|
|
|
|
|
|
| 315-0221 $94.62 * |
|
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|
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|
| 315-0222 $104.86 * |
|
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|
| 315-0223 $101.68 * |
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|
| PISTON RING POSITION | ||
| Top Ring | UCR (Upper Compression Ring) | |
| Second Ring | *CR (*ower Compression Ring) | |
| Oi* Ring | OCR (Oil Control Ring) | |
| PISTON RING TYPES | 1 TYPE CODE | DESCRIPTION |
| R adius Faced | RF | Barrel Faced, Upper Compression Ring |
| B eveled Radius Faced | BR | Positive Twist, Barrel Faced, Upper Compression Ring |
| P ressure Backed | PB | L-Shaped, Dykes Cut, Gas Pressure Backed Upper Compression Ring |
| B eve*ed Taper Face | BT | Positive Twist, Taper Faced, Upper Compression or Lower Compression Ring |
| R everse Beveled Taper Face | RBT | Reverse or Negative Twist, Taper Faced, Lower Compression Ring Only |
| Napier/ Tapered Hook Groove | THG | Tapered Face, Hook Shaped Undercut, Lower Compression Ring Only |
| Napier/ Tapered Hook Micro | THM | Tapered Face, Reduced Hook Shaped Undercut, Lower Compression Ring Only |
| 3 Piece Oil Ring | CP20 | Chem-Polished Stainless Steel Expander, Chrome Plated Carbon Steel Rails |
| 1 Piece Oil Ring | U-Flex | U-Shaped, Segmented Carbon Steel, Oil Control Ring |
| PISTON RING BASE MATERIALS | 2 MATERIAL CODE | DESCRIPTION |
| Cast Iron | 10 | Grey Cast Iron |
| Ductile Iron | 18 | High Strength Nodular Cast Iron |
| PC479 | 19 | Hardened High Strength Nodular Cast Iron |
| Stainless Steel | 12 | Gas Nitrided Stainless Steel |
| SAE 9254 | 13 | 9254 Carbon Steel |
| PISTON RING FACE COATINGS | 3 FACING CODE | DESCRIPTION |
| Chrome | U | Chrome Plated Face Coating |
| GNS | NG | Gas Nitrided Surface Hardening Treatment |
| PVD | PVD | Physical Vapor Deposition Surface Treatment |
| PF251 | PF | Traditional Plasma Thermal Spray Coating |
| PF278 | PF | Carbide Fortified Plasma Thermal Spray Coating |
| HV385 | PF | 385 HVOF High Density Thermal Spray Coating |
|
1Example: RF - 1 Ring Type Code: RF = Barrel Faced, Upper Compression Ring 2 Material Code: 13 = 9254 Carbon Steel 3 Face Coating or Treament: PF = Thermal Spray Coating (Can be Traditional or Fortified Plasma, or High Density HV385) |
Page 43.
COMPRESSION RING AND
OIL RING DESIGN ILLUSTRATIONS
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|
Page 96
|
|
| Sealed Power | MAHLE Original |
| R-637530 | 310-0001 $96.94 .030 |
| R-637540 | 310-0001 $96.94 .040 |
| R-6902 | 310-0002 $110.14 |
| R-6902 .030 | 310-0002 $110.14 .030 |
| R-6902 .040 | 310-0002 $110.14 .040 |
| R-6902 .060 | 310-0002 $110.14 .060 |
| R-8375 | 310-0003 $151.53 |
| R-837530 | 310-0003 $151.53 .030 |
| R-837540 | 310-0003 $151.53 .040 |
| R-8902 | 310-0004 $181.75 |
| R-890230 | 310-0004 $181.75 .030 |
| R-890240 | 310-0004 $181.75 .040 |
| R-890260 | 310-0004 $181.75 .060 |
| R-922435 | 315-0019 $222.17 .035 |
| R-92245 | 315-0019 $222.17 .005 |
| R-922465 | 315-0019 $222.17 .065 |
| R-922835 | 315-0044 $222.17 .035 |
| R-927835 | 315-0003 $201.97 .035 |
| R-92785 | 315-0003 $201.97 .005 |
| R-927865 | 315-0003 $201.97 .065 |
| R-928165 | 315-0043 $222.17 .065 |
| R-93325 | 315-0058 $222.17 .005 |
| R-934435 | 315-0002 $245.43 .035 |
| R-93445 | 315-0002 $245.43 .005 |
| R-934465 | 315-0002 $245.43 .065 |
| R-934625 | 315-0004 $182.58 .025 |
| R-934635 | 315-0004 $182.58 .035 |
| R-93465 | 315-0004 $182.58 .005 |
| R-93465 | 315-0004.015 $269.98 |
| R-934665 | 315-0004 $182.58 .065 |
| R-9357 | 315-0008 $196.03 .005 |
| R-935735 | 315-0008 $196.03 .035 |
| R-935765 | 315-0008 $196.03 .065 |
| R-937435 | 315-0010 $222.17 .035 |
| R-93745 | 315-0010 $222.17 .005 |
| R-9401 | 315-0005 $206.72 .005 |
| R-9401 | 315-0005 $206.72 .010 |
| R-9401 | 315-0005 $206.72 .025 |
| R-9401 | 315-0005 $206.72 .035 |
| R-9401 | 315-0005 $206.72 .045 |
| R-9401 | 315-0005 $206.72 .065 |
| R-94065 | 315-0014.00 |
|
|
Page 98
MEASUREMENT EQUIVALENTS
|
|
|
MM |
|
|
|
.3969 |
|
|
|
.7938 |
|
|
|
1.0000 |
|
|
|
1.1906 |
|
|
|
1.5875 |
|
|
|
1.9844 |
|
|
|
2.0000 |
|
|
|
2.3813 |
|
|
|
2.7781 |
|
|
|
3.0000 |
|
|
|
3.1750 |
|
|
|
3.5719 |
|
|
|
3.9688 |
|
|
|
4.0000 |
|
|
|
4.3656 |
|
|
|
4.7625 |
|
|
|
5.0000 |
|
|
|
5.1594 |
|
|
|
5.5563 |
|
|
|
5.9531 |
|
|
|
6.0000 |
|
|
|
6.3500 |
|
|
|
6.7469 |
|
|
|
7.0000 |
|
|
|
7.1438 |
|
|
|
7.5406 |
|
|
|
7.9375 |
|
|
|
8.0000 |
|
|
|
8.3344 |
|
|
|
8.7313 |
|
|
|
9.0000 |
|
|
|
9.1281 |
|
|
|
9.5250 |
|
|
|
9.9219 |
|
|
|
10.0000 |
|
|
|
10.3188 |
|
|
|
10.7156 |
|
|
|
11.0000 |
|
|
|
11.1125 |
|
|
|
11.5094 |
|
|
|
11.9063 |
|
|
|
12.0000 |
|
|
|
12.3031 |
|
|
|
MM |
|
|
|
12.7000 |
|
|
|
13.0000 |
|
|
|
13.0969 |
|
|
|
13.4938 |
|
|
|
13.8906 |
| - |
|
14.0000 |
|
|
|
14.2875 |
|
|
|
14.6844 |
|
|
|
15.0000 |
|
|
|
15.0813 |
|
|
|
15.4781 |
|
|
|
15.8750 |
|
|
|
16.0000 |
|
|
|
16.2719 |
|
|
|
16.6688 |
|
|
|
17.0000 |
|
|
|
17.0656 |
|
|
|
17.4625 |
|
|
|
17.8594 |
|
|
18.0000 |
|
|
|
|
18.2563 |
|
|
|
18.6531 |
|
|
|
19.0000 |
|
|
|
19.0500 |
|
|
|
19.4469 |
|
|
|
19.8438 |
|
|
|
20.0000 |
|
|
|
20.2406 |
|
|
|
20.6375 |
|
|
|
21.0000 |
|
|
|
21.0344 |
|
|
|
21.4313 |
|
|
|
21.8281 |
|
|
|
22.0000 |
|
|
|
22.2250 |
|
|
|
22.6219 |
|
|
|
23.0000 |
|
|
|
23.0188 |
|
|
|
23.4156 |
|
|
|
23.8125 |
|
|
|
24.0000 |
|
|
|
24.2094 |
|
|
|
24.6063 |
|
|
|
25.0000 |
|
|
|
25.0031 |
|
|
|
25.4000 |