MAHLE 3011043 Gas Nitride Steel Performance Top Compression Ring 4.615" Bore x .043" Thickness

The MAHLE 3011043 is a high-performance gas nitrided steel top compression ring designed for demanding racing and performance engine applications. Engineered for a 4.615-inch bore diameter with an ultra-thin .043-inch ring thickness and .170-inch radial wall, this ring delivers reduced mass and friction for maximum power output while maintaining superior sealing and durability.

Key Features:

• Gas nitride steel construction provides exceptional strength and wear resistance comparable to advanced coatings like PVD and DLC
• Ultra-thin .043-inch profile reduces ring mass and inertial loads for improved high-RPM performance
• .170-inch radial wall (RW) dimension optimized for reduced cylinder wall tension without sacrificing sealing capability
• Plain ring design requires file-fitting for precise end gap specification
• Barrel-faced contact area maximizes sealing efficiency and reduces friction
• Compatible with MAHLE's taper hook groove second rings for complete performance ring packages

Gas nitriding creates a hardened surface layer through heat treatment that significantly increases ring face durability and scuff resistance in high-temperature, high-pressure combustion environments. This MAHLE performance compression ring is ideal for serious racing applications where minimizing friction losses and maximizing cylinder sealing are critical for competitive advantage.