Mahle Rings 4.135in Bore 1/16 1/16 3/16 Plasma Moly Ductile Std Tension Engine Set Moly Ring Set

This is a Mahle OE standard tension piston ring set, designed for a 4.135 inch bore. It features plasma moly ductile iron top and second rings, with a 3/16 inch oil ring. These rings are crucial for sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall. Proper ring seal is essential for engine performance and longevity.

Mahle OE uses ductile iron for the top and second rings, which offers good strength and wear resistance. The plasma moly coating on these rings helps reduce friction and improve durability, especially under demanding conditions. The standard tension design ensures a reliable seal against the cylinder wall. This set is intended for engine rebuilds where precise fitment and reliable performance are key.