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Mahle OE plain second-ring set in Napier steel is supplied as a matched set sized 4.040 in outer diameter with a 1.0 mm section and .136 in radial width. Intended for engine rebuild and repair, this OE-spec ring set provides consistent dimensions for compatible pistons and cylinders and is offered without decorative finishes—valued by technicians needing accurate, factory-style replacement rings.
Mahle Rings Performance Napier Steel 2nd Ring 4.040in x 1.0MM .136in RW Plain Ring Set
