Mahle Rings Plasma Moly Steel Top Compression Ring 4.475in x .0625in .190in RW Moly Ring Set

These Mahle OE top compression rings are made from plasma moly steel, a strong material chosen for its ability to withstand high temperatures and pressures in the combustion chamber. They measure 4.475 inches in bore size, with a ring thickness of 0.0625 inches and a groove depth of 0.190 inches. The RW (reverse twist) design helps ensure proper sealing against the cylinder wall, which is crucial for maintaining compression and preventing blow-by.

Using plasma moly steel means these rings offer improved wear resistance compared to plain cast iron, helping them last longer even under demanding conditions. This makes them a solid choice for engine rebuilds where reliability and longevity are key. Proper ring seal is essential for engine performance, and these Mahle rings are built to help you achieve that.