MAHLE 3011204 Performance Gas Nitrided Piston Ring Set Bore - 4.355

The MAHLE 3011204 is a high-performance gas nitrided steel piston ring set engineered for demanding racing and performance applications. This premium ring set features a 4.355-inch bore diameter and is designed to deliver superior sealing, reduced friction, and exceptional durability under extreme combustion pressures and temperatures.

Key Specifications:

• Bore Diameter: 4.355 inches
• Top Ring Thickness: 0.043 inches (1/16")
• Second Ring Thickness: 0.043 inches (1/16")
• Oil Ring Thickness: 0.171 inches (3/16")
• Material: Gas nitrided steel construction
• Configuration: Plain ring design with RW (reverse width) profile

Performance Features:

• Gas nitriding process creates an ultra-hard, wear-resistant surface that significantly extends ring life
• Reduced friction design improves horsepower output and fuel efficiency
• Enhanced heat dissipation properties for improved thermal stability
• Optimized radial wall pressure for superior cylinder sealing
• Precision-machined to tight tolerances for consistent performance

MAHLE's gas nitriding treatment penetrates the steel substrate to create a hardened case that resists scuffing and wear, making this ring set ideal for high-RPM racing engines, forced induction applications, and performance street builds. The thin ring profile reduces reciprocating mass while maintaining excellent ring seal and oil control.