MAHLE 3011046 Gas Nitride Steel Performance Top Compression Ring Bore - 4.630

The MAHLE 3011046 is a premium gas nitride steel performance top compression ring designed for high-performance engine builds requiring a 4.630-inch bore diameter. This plain ring features advanced gas nitriding treatment that creates an extremely hard, wear-resistant surface while maintaining excellent oil control and sealing characteristics under demanding conditions.

Key Specifications:

• Bore Size: 4.630 inches
• Ring Thickness: .043 inches
• Radial Wall Thickness: .170 inches RW
• Material: Gas Nitride Steel
• Ring Type: Plain top compression ring
• Application: Performance and racing engines

Performance Features:

• Gas nitride coating provides superior wear resistance and reduced friction
• Optimized radial wall thickness for consistent cylinder pressure sealing
• Engineered for high-RPM and high-boost applications
• Maintains ring tension and sealing properties at elevated temperatures
• Compatible with performance piston ring sets requiring precise bore dimensions

MAHLE's gas nitriding process diffuses nitrogen into the steel substrate, creating a hardened surface layer that resists scuffing and wear while promoting proper break-in and long-term durability. This compression ring is ideal for street performance, racing, and forced induction engines where maximum cylinder sealing and longevity are critical.