MAHLE 3011112 Plasma Moly Steel Top Compression Piston Ring Set 4.310in Bore

The MAHLE 3011112 is a high-performance piston ring set featuring a plasma moly steel top compression ring engineered for demanding engine applications. Designed for a 4.310-inch bore diameter, this ring set delivers superior sealing, heat transfer, and wear resistance compared to standard cast iron rings.

The top compression ring utilizes a plasma-sprayed molybdenum (moly) coating, a premium surface treatment that significantly reduces friction and improves break-in characteristics. The moly coating also provides excellent resistance to scuffing and micro-welding under high heat and pressure conditions, making this ring set well-suited for performance, racing, and heavy-duty rebuilds.

Key Specifications:

• Bore Size: 4.310 inches
• Ring Width (Thickness): 0.0625 inches (1/16")
• Radial Wall (RW): 0.190 inches
• Top Ring Material: Plasma moly steel
• Ring Type: Compression ring set

Features & Benefits:

• Plasma moly coating reduces friction and wear for extended engine life
• Improved oil control and combustion sealing for maximum compression
• Enhanced break-in performance compared to uncoated rings
• Precision-manufactured to tight tolerances for consistent gap and fit
• Engineered for high-performance and heavy-duty engine rebuild applications

MAHLE is a globally recognized OEM and aftermarket supplier of pistons, rings, and engine components. The 3011112 ring set meets or exceeds OEM specifications and is manufactured to MAHLE's exacting quality standards, making it a reliable choice for engine builders seeking professional-grade components.