MAHLE 3010507B Piston Ring Set Bore Plasma-Moly - 4.020 1.5mm

The MAHLE 3010507B is a high-performance piston ring set designed for 4.020" bore engines. This precision-engineered ring set features a 1.5mm plasma-moly inlaid steel top compression ring for superior wear resistance and sealing performance.

Key Features:

• 4.020" bore diameter for precision fit
• 1.5mm positive-twist, ductile iron, barrel-faced top ring with plasma-moly coating
• Plasma-moly inlay provides excellent scuff resistance and durability
• Designed to seal the combustion chamber and prevent oil consumption
• Advanced ring materials and coatings optimized for reduced friction
• Pre-lapped design for quick seating and reduced break-in time
• Professional-grade quality from MAHLE, the world's largest piston ring manufacturer

MAHLE piston rings are engineered using advanced computer simulation and development tools to minimize friction while maximizing sealing performance. The plasma-moly coating on the top ring delivers superior bonding, increased durability, and exceptional scuff resistance compared to conventional ring coatings. Ideal for engine rebuilds where you're experiencing oil burning, compression loss, or performing a complete overhaul, these rings meet the demanding requirements of modern high-output engines.