MAHLE 3011041B Gas Nitrided Steel Performance Top Compression Ring 4.605" Bore

The MAHLE 3011041B is a high-performance plain top compression ring designed for demanding racing and performance applications. This gas nitrided steel ring is engineered for 4.605-inch bore engines and features a .043-inch (1.09mm) radial thickness with a reduced .170-inch radial wall design.

Key Features:

• Gas nitrided steel construction provides exceptional strength, hardness, and wear resistance without sacrificing cylinder wall protection
• Plain ring face design ideal for performance applications requiring minimal friction
• Reduced radial wall thickness (.170") allows for stronger piston construction and reduced tension load on cylinder walls
• 4.605-inch bore diameter optimized for large displacement performance engines
• .043-inch (approximately 1.09mm) radial thickness offers excellent sealing with lower friction
• Gas nitriding process creates superior dimensional control and predictable unit pressure for improved sealing

Technical Specifications:

• Bore Diameter: 4.605 inches
• Radial Thickness: .043 inches (1.09mm)
• Radial Wall: .170 inches
• Material: Gas Nitrided Alloy Steel
• Ring Type: Plain Face Top Compression Ring

Gas nitriding provides superior wear resistance compared to untreated steel while maintaining lower friction characteristics than chrome-plated rings. The heat treatment process hardens all surfaces of the ring, enhancing durability and extending service life in high-temperature, high-pressure performance environments. The reduced cross-section design made possible by high-strength steel construction allows for lower ring mass, better tolerance to inertial forces, and more effective sealing against the bottom of the ring groove at high RPM.