Mahle Rings Performance 4.135in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set

Mahle is known for making reliable engine components, and these performance piston rings are no exception. If you're rebuilding an engine, these rings are designed to seal the combustion chamber effectively, helping to maintain compression and keep oil out of the burn. They feature a plasma-moly steel top ring for durability and a moly ring set to ensure good sealing against the cylinder wall.

The top ring is 1.5MM thick, and the overall bore size this set is intended for is 4.135 inches. The plasma-moly coating on the top ring is a tough surface that helps resist wear, especially in performance applications where cylinder pressures can be higher. The moly coating on the other rings also aids in reducing friction and improving the break-in process, ensuring a solid seal from the start.