MAHLE Premium Piston Ring Set Bore Plasma-Moly

The MAHLE Premium Piston Ring Set with Plasma-Moly facing is a complete engine piston ring set (also called a piston ring kit) for engine rebuilds and performance builds. MAHLE is one of the world's largest piston ring manufacturers, and its rings are engineered for the higher temperatures, cylinder pressures and RPM of modern engines.

Key Features:

• Plasma-moly face coating: The top ring has a molybdenum-based face that helps resist wear and scuffing and holds up under heat and load.
• Complete ring set: Each set includes a top ring, second ring and oil ring assembly for the cylinder.
• Reverse-twist second rings: The intermediate rings use a reverse-twist design and taper-faced machining. These help seal the groove sides and improve contact with the cylinder wall.
• CP-20 oil ring assemblies: The oil rings have a 20-degree ear angle for better side sealing against the cylinder wall. A special chemical polish on the expander helps oil drain back.
• Easy to install: The rings are pre-lapped to seat quickly, which greatly reduces break-in time.
• Optimized design: Ring materials, coatings and tension are chosen to reduce friction and extend service life.

Pick the child item that matches your engine's bore size and ring dimensions. Each one is built to MAHLE's quality standards for dependable sealing, oil control and long service life.