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Mahle plain ring set for a 4.005-inch bore features top rings sized at 1/16 inch as specified for PC479 applications. This piston ring set is offered to match the stated bore diameter and ring thickness for engine rebuilds requiring plain top rings and compatible ring sizing for specified piston and cylinder dimensions.
Mahle Rings 4.005in Bore Dia 1/16in PC479 Top Rings Plain Ring Set
