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Mahle Original piston ring sets are designed to be installer-friendly. They are pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials and coatings, as well as ring tension, are all optimized for reduced friction and extended life in each application. The compression rings feature a barrel-faced contact area for more efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blow-by. Intermediate rings have a reverse twist design for better groove side sealing, and taper race machining to enhance contact. The CP-20 oil ring assemblies feature a 20 degree ear angle, an exclusive feature that provides the best possible side seal against the cylinder wall, and a special chemical polish on the oil ring expander offers enhanced oil drain back. Mahle Original piston ring sets provide unmatched quality and ease of installation, making them the rings of choice for today's engine builders.
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$22.99
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$502.99
The CP-20 oil rings from Mahle Original consists of a barrel-faced top compression ring for better seal and quicker break-in, and reverse torsional twist second ring for better oil control. The CP-20 oil rings have a 20-degree ear angle to ensure side seal around the ring and are chemically polished for better oil drain-back, but most importantly they can withstand the harsh operating environments in today's engines. Ease of installation makes the Mahle Original CP-20 oil rings the premier choice for rebuilders everywhere. For piston rings and accessories that deliver more horsepower and torque, the Mahle Original performance line proves time and again that it should be the piston ring of choice under every hood—regardless of the application.
Not Yet Reviewed
$46.99
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$305.99
Mahle Original replacement pistons have the same great OE features to provide the perfect fit and function in your vehicle. They offer things like compensated ring grooves to ensure proper ring loading and oil control; as well as expansion-controlled designs for small fitting clearances—to reduce engine noise, wear, emissions, and improved oil control. Choose the model designed for your vehicle and engine application.
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$21.99
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$1,599.99
Mahle is the world's largest manufacturer of piston rings. Their tremendous research and development and extensive OE connections mean that Mahle Original standard piston ring sets have the technological edge. Things like narrow compression rings, steel compression rings for gasoline engines, low-tension oil rings, and coated compression rings for diesels all came from OE. Mahle's entire Original line proves time and again that it should be the ring of choice under every hood - regardless of the application. Mahle Original standard piston rings offer high tensile strength, high yield strength, and excellent hardness with low ring mass. These factors lead to stress resistance, minimal groove pound-out, long service life, cylinder conformability, oil economy, and good blow-by control with low friction. Whether you're repairing a modern computer-controlled engine, or rebuilding an older engine, be sure to specify Mahle Original standard piston ring sets (formerly Perfect Circle) … trusted by professional automotive technicians for over 100 years.
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$8.99
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$159.99
Mahle Original aftermarket replacement pistons have great features to provide the perfect fit and function in your vehicle. They offer things like compensated ring grooves to ensure proper ring loading and oil control; as well as expansion-controlled designs for small fitting clearances—to reduce engine noise, wear, emissions, and improved oil control. Some include hard anodized ring lands, and coatings on the skirts and crowns. Choose the model designed for your vehicle and engine application.
( 1 )
$49.99
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$797.99
Mahle Original plasma-moly steel piston ring sets provide the ultimate in tensile strength, hardness, and fatigue resistance. The top rings are manufactured from SAE 9254 steel combined with proprietary plasma face coating to extend life, eliminate ring breakage, reduce side wear and minimize groove pound out problems. Ring sets with low and ultra-low tension oil rings are not recommend for street use and should utilize a vacuum pump for maximize performance.
Not Yet Reviewed
$144.99
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$217.99
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 will provide superior ring durability, stable radial tension, superior combustion sealing and oil control, while protecting the cylinder walls.
( 2 )
$139.99
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$254.99
Mahle Original plasma-moly ductile ring sets are designed for the serious racer. They feature rings that maximize combustion sealing and minimize frictional losses to increase horsepower and oil control. The 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 recommend for street use and should utilize a vacuum pump for maximize performance.
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$97.99
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$264.99
Mahle Original single piston and ring kits have the same great OE features to provide the perfect fit and function in your vehicle. Things like compensated ring grooves to ensure proper ring loading and oil control and expansion-controlled designs for small fitting clearances to reduce engine noise, wear, emissions, and improve oil control. They offer pistons ready for installation with mounted piston rings, with pin and clips included for the convenience of the engine builder. Whether you're repairing or restoring, you can count on the performance of Mahle Original single piston and ring kits.
Not Yet Reviewed
$89.99
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$836.99
Mahle Original individual Fire-Power piston rings 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.
Not Yet Reviewed
$4.50
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$856.99
Mahle Original claimer performance piston ring sets are engineered for Oval Track Claimer Series engines. They feature many of the same benefits as the race-proven premium sets at an economical price. Positively twisted 5/16 in. or 1/16 in. top rings provide outstanding high-rpm sealing in a choice of plain cast iron or plasma-moly face coatings. The Mahle Original claimer performance piston ring sets utilize a 5/64 in. RBT or 1/16 in. 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.
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$67.99
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$257.99
Mahle Original rear main seals are high-quality rear main seals designed to replace your factory seals. They are constructed from high-quality materials to meet or exceed OE standards and are designed to provide long-lasting durability and performance. If you're looking for high-quality replacement seals for your vehicle, Mahle Original rear main seals are your solution.
( 23 )
$531.99
Mahle Original individual plasma-moly ductile ring sets are designed for the serious racer. They are designed to maximize combustion sealing and minimize frictional losses to increase horsepower and oil control. The rings are available for the top, second, and oil ring positions.
Not Yet Reviewed
$69.99
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$204.99
Mahle Original individual plasma-moly steel piston rings provide the ultimate in tensile strength, hardness, and fatigue resistance. Top rings are manufactured from SAE 9254 steel combined with proprietary plasma face coating to extend life, eliminate ring breakage, reduce side wear and minimize groove pound out problems.
Not Yet Reviewed
$59.99
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$121.99
Mahle Original performance metric upper compression piston rings utilize a proprietary face coating developed specifically for extreme operating conditions. The rings provide unequaled strength and fatigue resistance that extends overall life and reduces breakage. The lower compression Napier ring uses the same steel base, and oil control rings provide superior oil control in all performance applications. Mahle Original performance metric piston rings utilize bore-specific designs and the best possible side seal in the piston ring groove. Additional product features: * HV385 thermal spray coating on upper compression rings * SAE 9254 steel base material for both compression rings * CP-20 performance oil rings with 20-degree ear angle
Not Yet Reviewed
$84.99
Mahle Original individual claimer performance piston rings are engineered for Oval Track Claimer Series engines. They feature many of the same benefits as the race proven premium sets at an economical price. Positively twisted 5/16 in. or 1/16 in. top rings provide outstanding high-rpm sealing in a choice of plain cast iron or plasma-moly face coatings. Second rings are available in a 5/64 in. RBT or 1/16 in. THG, and CP-20 oil rings are available in standard and low tension for optimum power output.
Not Yet Reviewed
$39.99
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$84.99
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