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This Mahle plasma moly steel top compression ring set is sized at 4.150" bore with a 1/16" thickness and a .190" ring width. It is intended as a direct replacement compression ring for engines matching those dimensions, providing the specified plasma moly top-ring construction to restore proper piston-to-cylinder sealing during rebuilds or repairs.
Mahle Rings Plasma Moly Steel Top Compression Ring 4.150in x 1/16in .190in RW Moly Ring Set
