The Mahle OE Moly Ring Set is a plasma-moly, steel-top compression ring sized 4.395 in x .0625 in with a .190 in RW profile intended for piston rebuilds and engine assembly. The moly-coated surface provides wear resistance to maintain ring-to-cylinder contact under combustion loads, offering a factory-style sealing option when matching ring dimensions to piston grooves is necessary.
Mahle Rings Plasma Moly Steel Top Compression Ring 4.395in x .0625in .190in RW Moly Ring Set