MAHLE 42266CP.030 Engine Piston Ring Set Oversize - 0.030

The MAHLE 42266CP.030 is a premium engine piston ring set engineered for +0.030" oversize bored cylinders. MAHLE is a globally recognized OEM-level supplier trusted by professional engine builders and rebuilders for precision-fit, performance-grade piston rings that meet or exceed original equipment specifications.

This ring set is designed to restore proper compression, control oil consumption, and ensure long-term engine durability following a cylinder bore job. The CP designation indicates a chrome-plated top compression ring construction, which provides superior wear resistance and excellent break-in characteristics compared to standard cast iron rings.

Key Features:

• +0.030" Oversize — engineered for cylinders bored 0.030" over standard to restore proper ring-to-wall fit
• Chrome-plated top compression ring — enhanced wear resistance and extended service life
• OEM-grade manufacturing — precision tolerances matching or exceeding original equipment standards
• Complete ring set — includes compression rings and oil control rings for a full cylinder set
• Optimized gap specifications — ensures proper sealing and minimal blow-by
• Manufactured by MAHLE, a leading global supplier of engine components to major OEM automakers

Ideal for professional engine rebuilders and performance shops, the MAHLE 42266CP.030 piston ring set delivers reliable sealing performance and is built to withstand the demands of a freshly rebuilt engine. Always verify cylinder bore measurements before installation to confirm the +0.030" oversize is the correct fit.