This Mahle OE plain ring set is a performance second ring sized at 4.295 in diameter with .043 and .135 in cross-section dimensions. Offered as a direct replacement for engine rebuilding tasks where these measurements match the piston specification, the overview highlights intended use and correct sizing without asserting materials or fit beyond the provided description.
Mahle Rings Performance Steel Napier 2nd Ring 4.295in x .043 .135in RW Plain Ring Set