MAHLE S41517 Original Premium Piston Ring Set

The MAHLE S41517 is a premium OEM-replacement piston ring set engineered to restore proper compression, minimize oil consumption, and extend engine life. As part of MAHLE's Original line of light-vehicle piston rings, this set is manufactured to meet or exceed original equipment specifications for a precise, reliable fit.

Key Features:

• Pre-lapped rings seat immediately upon installation, virtually eliminating traditional break-in time
• Barrel-faced compression rings provide a more efficient contact area for improved compression and reduced blow-by
• CNC-controlled gap chamfer on compression rings optimizes sealing and minimizes combustion gas leakage
• Reverse-twist intermediate ring design delivers better groove side sealing and enhanced cylinder wall contact via taper race machining
• CP-20 oil ring assembly features a 20-degree ear angle for superior side sealing against the cylinder wall, plus a chemically polished expander for enhanced oil drain-back
• Application-optimized ring tension, materials, and coatings reduce friction and deliver extended service life

MAHLE Original piston ring sets are the trusted choice of professional engine builders seeking OE-quality replacement components. The S41517 ring set is sold as a complete set for one engine cylinder and is designed for straightforward installation by both professionals and experienced DIY builders.