MAHLE 3150036 Plasma-Moly Piston Ring Set 4.000 in. Bore 1/16 1/16 3/16 V8

The MAHLE 3150036 is a plasma-moly ductile piston ring set designed for the serious performance builder and racer. Engineered for a 4.000-inch standard bore, this 8-cylinder set features ring widths of 1/16 in. (top), 1/16 in. (second), and 3/16 in. (oil) at standard tension, delivering exceptional combustion sealing and oil control.

Key Features:

• Plasma-moly top ring — Barrel-faced design promotes instant break-in and maintains consistent contact with the cylinder wall as the piston rocks at TDC and BDC
• Napier THG (Tapered Hook Groove) second ring — Provides superior oil control by scraping cylinder walls on each down stroke, while also improving combustion gas management and top ring stability
• CP-20 3-piece oil control ring — Features a stainless steel expander between two chrome-faced steel rails for high conformability within the cylinder bore; the exclusive 20-degree ear angle ensures an optimal cylinder wall seal
• Carbon steel construction with radial dimensions: Top Ring .190 in., Second Ring .170 in., Oil Ring .201 in.
• Foolproof installation design — Rings are engineered to prevent incorrect installation

MAHLE is the world's largest piston ring manufacturer, with over a century of OE and aftermarket development experience. More than 60% of production engines built in North America use MAHLE pistons or rings. The 3150036 ring set delivers the same rigorous quality standards that MAHLE supplies to OE engine programs, now available for engine rebuilds and performance applications.