MAHLE 3030903B Performance Piston Ring Set Bore - 4.620 3.0mm Chrome

The MAHLE 3030903B is a high-performance piston ring set designed for precision engine builds requiring a 4.620-inch bore diameter. This premium ring assembly features a 3.0mm oil ring with a .137-inch radial wall thickness and standard tension design for optimal cylinder sealing and oil control.

Key Features:

• 4.620-inch bore diameter for custom and performance applications
• 3.0mm oil ring assembly with chrome facing for superior durability
• .137-inch radial wall thickness for robust construction
• Standard tension design provides reliable cylinder sealing
• Chrome ring material resists wear and maintains compression
• Precision-manufactured to MAHLE's exacting OE standards

MAHLE piston rings are engineered using advanced metallurgy and coating technologies to deliver maximum performance and longevity. The chrome-faced oil ring provides excellent wear resistance while maintaining proper oil control throughout the engine's service life. Ideal for racing engines, high-performance rebuilds, and custom engine builds where precise bore sizing is required.