MAHLE 3011203B Performance Gas Nitrided Piston Ring Set Bore - 4.585

The MAHLE 3011203B is a high-performance gas nitrided steel piston ring set designed for demanding engine applications. This premium ring set features a 4.585-inch bore diameter and is engineered to deliver superior sealing, reduced friction, and enhanced durability in performance and racing engines.

Key Features:

• Gas nitrided steel construction for exceptional wear resistance and extended service life
• 4.585-inch bore diameter with .043-inch top ring thickness
• .171-inch radial wall (RW) thickness for optimal cylinder sealing
• Plain ring design without coating for specific performance applications
• Precision-manufactured to OE tolerances for reliable fitment
• Sold as bulk individual ring set (not packaged)

MAHLE's gas nitriding process creates an extremely hard surface layer that resists scuffing and wear while maintaining excellent oil control. This ring set is ideal for custom engine builds, racing applications, and performance rebuilds where precise bore sizing and material specifications are critical. The plain finish allows for custom coating or break-in procedures as required by the specific application.