MAHLE 42093CP Engine Piston Ring - Set

MAHLE 42093CP is a premium engine piston ring set engineered to OE form, fit, and function standards. As one of the world's largest OE piston ring manufacturers, MAHLE brings factory-level quality and the latest ring technology to the aftermarket, making this set an ideal choice for engine rebuilds and overhauls.

Key Features:

• SAE 9254 High Alloy Steel Base Material — delivers higher tensile and yield strength, extended fatigue resistance, and increased material hardness for long-lasting performance
• Pre-Lapped Finish — rings seat immediately upon installation, virtually eliminating break-in time and simplifying the rebuild process
• Plasma-Moly Top Compression Ring — barrel-faced contact area promotes more efficient compression; CNC-controlled gap chamfer reduces blow-by
• Reverse Twist Intermediate (Second) Ring — provides superior groove side sealing, improved combustion gas management, top ring stability, and taper race machining for enhanced cylinder wall contact
• CP-20 Oil Ring Assembly — exclusive 20-degree ear angle delivers the best possible side seal against the cylinder wall; special chemical polish on the oil ring expander promotes enhanced oil drain back
• Optimized Ring Tension — materials, coatings, and tension are all application-specific, reducing friction and minimizing engine oil consumption
• OE Form, Fit & Function — designed as a direct replacement to meet or exceed original equipment specifications

MAHLE piston ring sets are the preferred choice of professional engine builders. Engineered to reduce friction and ring mass while maximizing sealing efficiency and service life, the 42093CP set delivers reliable, long-term performance in demanding engine applications.