MAHLE 42033CP.010 Engine Piston Ring Set - Premium OE +0.010" Oversize

The MAHLE 42033CP.010 is a premium OE-grade engine piston ring set sized at +0.010" oversize, designed for precise cylinder sealing during engine rebuilds and overhauls. As the world's largest piston ring manufacturer, MAHLE engineers these rings to meet or exceed original equipment specifications, making them a trusted choice for professional engine builders and rebuilders.

Key Features:

• +0.010" Oversize (0.010" over bore) — engineered for use with cylinders bored 0.010" over standard diameter
• Premium OE-quality construction — cast iron and/or ductile iron compression rings with durable anti-wear face coatings including plasma-moly or chrome
• CP-series oil control ring — three-piece design with chrome-faced stainless steel rails and a precision expander for optimal oil control and drain-back
• Pre-lapped finish — rings are pre-finished to seat quickly, minimizing break-in time
• Tight dimensional tolerances — ultra-flat ring flanks maximize ring-to-piston groove sealing and minimize blow-by
• Complete set — includes upper compression ring, lower compression ring, and three-piece oil control ring assembly for one cylinder (verify quantity per application)

MAHLE piston rings are trusted by OEM manufacturers worldwide and are backed by over a century of precision engineering expertise. The 42033CP.010 is the correct choice when rebuilding an engine with cylinders that have been bored 0.010" over standard, ensuring proper ring-to-wall fit, optimal compression, and long-term engine performance.