Mahle Rings 4.0550 Bore Dia 1.2MM Edge Width Steel Plasma Moly Top Ring Moly Ring Set

This Mahle OE Piston Ring Set includes all the rings needed for one piston, with a 4.0550 inch bore diameter. The top ring is a 1.2mm steel plasma moly type, paired with a moly ring. These rings are essential for sealing the combustion chamber, controlling oil consumption, and transferring heat from the piston to the cylinder wall.

Mahle has built a reputation for well-made engine components, and this ring set is no exception. The plasma moly coating on the top ring offers improved durability and reduced friction, which can help with engine longevity and performance. The moly ring also contributes to a good seal and oil control. These are designed as direct replacements for your original rings, making installation straightforward when you're rebuilding or refreshing your engine.