The Mahle moly top compression ring set is a piston ring set sized 4.3100 in bore with a 5/64 in section designed for use as a top compression ring. These moly-coated rings provide sealing at the top of the cylinder for combustion control and wear resistance. Packaged as a standard replacement set, they suit rebuilds where a durable compression ring is required.
Mahle Rings 4.3100in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set