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Mahle OE plain ring set in Gas Nitride Steel sized 4.180 in with .043 in thickness and .157 RW is intended as a direct replacement option for pistons needing that exact diameter. The listing supplies the material and dimensions so technicians can match rings to piston bores accurately during engine rebuilds or maintenance procedures.
Mahle Rings Performance Gas Nitride Steel 4.180 x .043 .157 RW Plain Ring Set
