MAHLE 3150033-060 Plasma-Moly Performance Piston Ring Set 4.060" Bore

The MAHLE 3150033-060 is a Plasma-Moly Piston Ring Set engineered for high-performance and racing engine applications. Designed for a 4.060" bore (+.060" oversize), this set features 1/16", 1/16", and 3.0mm ring widths with standard tension and is constructed from durable carbon steel.

MAHLE pioneered the use of piston ring simulation and computer development tools to engineer rings that provide measurable gains by minimizing friction. Precision-ground ring flanks maximize ring-to-piston groove sealing, while the plasma-moly face coating on the top ring delivers outstanding scuff resistance and long-term durability under extreme operating conditions.

Key Features:

• Bore Size: 4.060" (+.060" oversize)
• Ring Widths: Top — 1/16" | Second — 1/16" | Oil — 3.0mm
• Tension: Standard
• Material: Carbon steel with plasma-moly face coating
• Top Ring: Barrel-faced design for instant break-in and consistent cylinder wall contact
• Second Ring: Napier tapered hook groove (THG) design for superior oil control and improved combustion gas management
• Oil Ring: CP-20 oil control ring with 20-degree ear angle for maximum cylinder wall seal
• Ultra-flat ring flanks for maximized ring-to-piston sealing
• Precision-ground finish for consistent performance and easy installation

MAHLE is the world's largest piston ring manufacturer, with over a century of OE and aftermarket experience. The 3150033-060 ring set is ideal for engine builders demanding reliable sealing, reduced oil consumption, and minimal frictional power loss in performance and racing builds.