The Mahle OE Plasma Moly top compression ring set is a bulk pack of 48 rings sized 4.130in x .0625in with .190in RW. These plasma moly steel top comp rings are intended as replacement top compression rings for compatible engine pistons and are supplied in a quantity suited to machine shops or builders handling multiple rebuilds.
Mahle Rings Plasma Moly Steel Top Comp Ring 4.130in x .0625in .190in RW Ring Set (48 Qty Bulk Pack)