Mahle Rings 3.8950in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set

This set includes the top compression rings you need for your engine rebuild. Mahle OE is a well-known name in engine components, and these rings are designed to fit your pistons precisely.

The top compression ring is crucial for sealing the combustion chamber, preventing gases from blowing past the piston. These rings feature a Moly (molybdenum) coating on the top compression ring, which helps reduce friction and wear, especially during the critical break-in period. This coating is known for its ability to hold lubrication well, contributing to a longer ring and cylinder life. The 5/64 inch width is a common size for many performance and stock applications, ensuring a good seal without excessive tension.