MAHLE 3011247 Performance Piston Ring Set Bore Plasma Moly Steel - 4.075

The MAHLE 3011247 is a high-performance piston ring set designed for serious engine builds requiring maximum durability and power. This premium ring set features a 4.075-inch bore diameter and utilizes advanced materials and coatings for superior performance under demanding conditions.

Key Features:

• Plasma Moly steel top ring with HV385 hardness rating for exceptional wear resistance
• 1.5mm ring thickness for reduced friction and improved ring seal
• 0.151-inch radial wall thickness provides optimal strength-to-weight ratio
• Moly coating reduces friction and resists scuffing during break-in
• Precision-engineered to MAHLE's OEM specifications
• Designed for high-performance and racing applications

MAHLE's performance piston rings incorporate decades of motorsports engineering and are trusted by engine builders worldwide. The plasma moly coating on the top ring face provides a micro-porous surface that retains oil while reducing friction, ensuring reliable performance even under extreme cylinder pressures and temperatures.