MAHLE 3011194B Plain Ring Set Gas Nitrided Steel 4.165in Bore Performance Bulk

The MAHLE 3011194B is a high-performance plain piston ring set engineered for serious performance applications requiring maximum durability and strength. Designed for 4.165-inch bore engines, this ring set features gas nitrided steel construction that delivers exceptional resistance to extreme temperatures, high cylinder pressures, and detonation.

Key Specifications:

• Bore Size: 4.165 inches
• Ring Thickness: 0.043 inch (top and second compression rings)
• Radial Wall: 0.157 inch (reduced wall thickness)
• Material: Gas nitrided alloy steel compression rings
• Sold in bulk packaging for individual piston fitment

Performance Features:

• Gas nitriding process creates an extremely hard, wear-resistant surface that maintains strength at elevated temperatures
• Alloy steel construction provides superior tensile strength and ductility compared to cast iron rings, resisting breakage and detonation damage
• Reduced radial wall thickness (0.157 inch) decreases ring mass and inertial forces for improved high-RPM sealing and reduced friction losses
• Thinner 0.043-inch axial height allows top ring placement closer to piston crown, reducing crevice volume and unburned fuel emissions
• Plain ring design offers file-fit capability for precise end gap adjustment to specific engine requirements

This MAHLE ring set is ideal for turbocharged, supercharged, nitrous oxide, and other high-output forced induction applications where standard cast iron rings may fail. The gas nitrided steel construction is compatible with both cast iron and Nikasil cylinder bores, making it versatile for modern performance engine builds. Sold as a bulk single-piston set for professional engine builders who require precise ring selection and fitting.