MAHLE 3150139.060 Plasma-Moly Piston Ring Set Bore - 4.060

The MAHLE 3150139.060 is a high-performance plasma-moly piston ring set engineered for 4.060" bore applications with +.060" oversize. This premium ring set features MAHLE's advanced plasma-moly steel construction combined with standard tension design for optimal sealing and durability in demanding engine conditions.

Key Features:

• 4.060" bore diameter (+.060" oversize)
• Ring widths: 1/16", 1/16", 3.0mm
• Standard tension design for reliable cylinder sealing
• Carbon steel construction with plasma-moly face coating
• Barrel-faced top ring for instant break-in and consistent cylinder wall contact
• Napier THG (hook groove) second compression ring for superior oil control
• CP-20 oil control ring with exclusive 20-degree ear angle for optimal sealing

MAHLE Original performance piston rings are engineered to withstand higher RPM, increased compression ratios, and extreme temperatures while maintaining dependable performance. The plasma-moly coating provides exceptional tensile strength, hardness, and fatigue resistance, extending ring life and eliminating breakage. The lighter ring design tolerates inertial forces more effectively and seals against the ring groove bottom with superior efficiency, making this ring set ideal for high-output engines and performance applications.