MAHLE 42102CP.030 Engine Piston Ring Set Oversize - 0.030

The MAHLE 42102CP.030 is a complete engine piston ring set engineered to OEM specifications and manufactured to exacting tolerances. Designed for use during engine rebuilds or overhauls, this ring set is sized at +0.030" oversize to accommodate cylinders that have been bored or honed to restore proper wall geometry and surface finish.

MAHLE is a globally trusted original equipment supplier to major automotive manufacturers, and their aftermarket piston ring sets carry the same quality standards as their OEM components. The CP designation indicates a coated performance ring package, offering enhanced wear resistance and improved sealing compared to standard replacement rings.

Key Features:

• +0.030" Oversize – designed for cylinders bored 0.030" over standard diameter
• OEM-quality manufacturing – produced to the same tolerances as original equipment rings
• Coated ring surfaces – improved wear resistance and reduced break-in time
• Complete set – includes compression rings and oil control rings for all cylinders in the application
• Precision fit – engineered end gaps and radial depth for proper sealing and blowby control
• Manufactured by MAHLE, a leading global OEM supplier of engine components

Proper piston ring installation is essential for achieving correct compression, controlling oil consumption, and maximizing engine longevity. Always verify cylinder bore diameter with a bore gauge before selecting ring oversize. Rings should be installed with a calibrated ring expander tool to prevent distortion.