MAHLE 41875CP Engine Piston Ring Set - Plasma-Moly CP-20 Series

The MAHLE 41875CP is a premium OE-quality engine piston ring set engineered to meet or exceed original equipment specifications. Built on MAHLE's proven CP-20 platform, this ring set is designed for engine builders who demand reliable sealing, reduced friction, and long service life during engine rebuilds or overhauls.

Key Features:

• OE Form, Fit & Function: Engineered to original equipment standards using SAE 9254 high-alloy steel base material for superior tensile strength, fatigue resistance, and hardness
• Pre-Lapped Design: Rings are pre-lapped at the factory to seat immediately upon installation, virtually eliminating traditional break-in time
• Barrel-Faced Compression Rings: Top compression rings feature a barrel-faced contact profile and CNC-controlled gap chamfer for optimized compression and reduced blow-by
• Reverse-Twist Intermediate Rings: Second rings use a reverse-twist napier design with taper-race machining for enhanced groove side sealing and superior oil control
• CP-20 Oil Ring Assembly: Features an exclusive 20-degree ear angle that provides maximum side seal contact against the cylinder wall, plus a chemically polished expander for improved oil drain-back
• Optimized Materials & Coatings: Ring materials, coatings, and tension levels are all matched to the specific application to minimize friction and extend service life

MAHLE is one of the world's largest OE piston ring manufacturers, supplying rings to major automakers globally. The 41875CP ring set reflects that OE engineering expertise, making it a top choice for professional engine builders and serious DIY rebuilders alike.