MAHLE 41473CP.060 Moly Piston Ring Set 0.060 Over GM 2.8L 3.1L Engine

The MAHLE Original 41473CP.060 is a premium moly piston ring set engineered for GM 2.8L (173 cu. in.) and 3.1L (189 cu. in.) engines, sized at 0.060" oversize for use in engines that have been bored or that require an oversize ring to restore proper cylinder sealing. MAHLE is one of the world's leading OE piston ring manufacturers, and this set is built to OE form, fit, and function standards.

Key Features:

• SAE 9254 High-Alloy Steel Base Material — delivers higher tensile and yield strength, extended fatigue resistance, and increased material hardness for long service life
• Moly Top Compression Rings — barrel-faced contact surface for efficient compression and reduced blow-by, with CNC-controlled gap chamfer for optimized sealing
• Napier Second Rings — reverse twist design for superior groove side sealing and taper race machining to maximize contact with the cylinder wall
• CP-20 Oil Ring Assemblies — exclusive 20-degree ear angle provides maximum side sealing in the oil ring groove; chemically polished expander promotes enhanced oil drain-back
• Pre-Lapped for Immediate Seating — virtually eliminates break-in time and simplifies installation
• 0.060" Oversize — designed for cylinders bored 0.060" over standard bore diameter
• Sold as a complete set (6 ring sets for all cylinders)

MAHLE Original piston ring sets are optimized for reduced friction, minimized oil consumption, and extended service life — making them the preferred choice for professional engine rebuilders and enthusiasts restoring GM V6 powerplants.