Mahle OE plain ring set in Gas Nitride Steel sized 4.195 in with .043 in thickness and .157 RW is intended for piston replacements that require that precise diameter. The plain rings are supplied with the exact dimensions to support correct ring-to-bore fit during engine rebuilds or repairs, helping ensure consistent assembly when matched to the listed specs.
Mahle Rings Performance Gas Nitride Steel 4.195 x .043 .157 RW Plain Ring Set