MAHLE 42264.030 Premium Engine Piston Ring Set Oversize - 0.030

The MAHLE 42264.030 is a premium OE-quality engine piston ring set ground to a +0.030" oversize bore specification. Engineered to meet or exceed original equipment standards, this ring set delivers reliable compression sealing, reduced oil consumption, and extended engine service life.

Key Features:

• Pre-lapped finish allows rings to seat immediately, virtually eliminating traditional break-in time
• Barrel-faced compression rings provide a more efficient contact area for improved compression and reduced blow-by
• CNC-controlled gap chamfer on compression rings optimizes ring seal and minimizes blow-by
• Reverse-twist intermediate rings deliver better groove side sealing with taper-race machining for enhanced contact
• CP-20 oil ring assemblies feature an exclusive 20-degree ear angle for optimal side sealing against the cylinder wall
• Chemically polished oil ring expander promotes enhanced oil drain-back for cleaner operation
• Optimized ring tension and materials reduce friction and extend service life in each specific application
• +0.030" oversize bore sizing for engines machined to standard rebuild tolerances

MAHLE is a globally recognized leader in piston ring technology, with decades of OE supply experience for major automotive manufacturers. The 42264.030 ring set is the choice of professional engine builders seeking installer-friendly components that deliver consistent, long-lasting performance straight out of the box.