MAHLE 42253CP.030 Engine Piston Ring Set - 0.030 Over Coated Performance

The MAHLE 42253CP.030 is a complete engine piston ring set designed to OEM or better specifications, featuring a 0.030-inch oversize bore dimension for use in freshly bored or worn engine cylinders that have been machined to the 0.030" over standard. MAHLE Original is a globally trusted OEM supplier known for engineering-grade components used in factory engine builds and professional rebuilds alike.

Key Features:

• 0.030" Oversize (OS) – Engineered for cylinders bored 0.030" over standard bore diameter
• CP (Coated Performance) – Chrome or plasma-moly coated top ring for enhanced wear resistance and reduced friction
• Complete Ring Set – Includes compression rings and oil control rings for all cylinders in the application
• OEM-Quality Standards – Manufactured to precise gap tolerances for proper sealing and compression retention
• Premium Materials – High-strength ductile iron and/or steel construction for durability under high heat and pressure
• Gap Tolerances Pre-Set – Rings are precision-ground to tight tolerances, reducing engine builder prep time
• Corrosion-Resistant Finish – Surface treatments protect rings during storage and extend service life

MAHLE piston ring sets are a go-to choice for professional engine rebuilders and performance enthusiasts who demand reliable sealing, consistent compression, and long service life. This set is ideal for engine rebuild projects requiring a 0.030" overbore and is compatible with standard MAHLE or OEM pistons of matching oversize.