MAHLE 41097CP Premium Engine Piston Ring Set with CP-20 Oil Ring Assembly

The MAHLE 41097CP 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 its original equipment expertise directly to the aftermarket, delivering a ring set built with the most technically advanced materials and coatings available.

This set features MAHLE's signature CP-20 oil ring assembly, constructed from SAE 9254 high alloy steel for superior tensile strength, extended fatigue resistance, and increased material hardness. Ring materials, coatings, and tension levels are all optimized per application to reduce friction, minimize engine oil consumption, and deliver a longer service life.

Key Features:

• CP-20 Oil Ring Assembly — Exclusive 20-degree ear angle provides the best possible side seal in the piston oil ring groove while simplifying installation
• SAE 9254 High Alloy Steel Construction — Higher tensile and yield strength, extended fatigue resistance, and increased hardness vs. standard materials
• Barrel-Faced Compression Rings — Optimized contact area for more efficient compression and reduced blow-by
• CNC-Controlled Gap Chamfer — Precision-machined for consistent compression and minimized blow-by
• Reverse Twist Intermediate Rings — Improved groove side sealing with taper race machining to enhance cylinder wall contact
• Pre-Lapped Design — Rings seat immediately upon installation, virtually eliminating break-in time
• Special Chemical Polish on Oil Ring Expander — Promotes enhanced oil drain-back for cleaner combustion
• OE replacement quality — designed with OE form, fit, and function for a direct, confidence-inspiring installation

MAHLE Original piston ring sets are the trusted choice of professional engine builders and technicians, backed by over 100 years of piston ring manufacturing heritage — formerly known under the Perfect Circle brand. The 41097CP delivers the same OE-grade engineering in a ready-to-install aftermarket set.