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The Mahle plasma-moly piston ring set is a ductile, RW moly ring kit sized 4.1875 in with a .0630 in thickness and .173 in RW specification, intended for engine rebuilds requiring plasma-moly material properties. It supplies the specific ring dimensions listed for compatible pistons and serves as a direct replacement when those sizes match the engine's requirements.
Mahle Rings Plasma-Moly Ductile 4.1875in x .0630in .173in RW Moly Ring Set
