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The Mahle OE plain piston ring set is a performance steel second (Napier) ring sized 4.255 in x .043 in thickness with a .135 in ring width, supplied as a plain ring set for piston rebuilds and repairs. It serves as a direct replacement to restore cylinder sealing and compression during engine overhauls or routine maintenance.
Mahle Rings Performance Steel Napier 2nd Ring 4.255in x .043 .135in RW Plain Ring Set
