Mahle OE plain ring set in Gas Nitride Steel, 4.205 in with .043 in thickness and .157 RW, is supplied as a standard plain ring replacement for pistons that require these dimensions. The listing provides the exact bore and ring thickness so technicians can match rings to pistons for correct fit and sealing during engine rebuild or repair work.
Mahle Rings Performance Gas Nitride Steel 4.205 x .043 .157 RW Plain Ring Set