This Mahle plain top ring set is specified for a 4.005-inch bore with 1/16-inch ring thickness and is offered as a bulk pack of 48 rings. Intended for engine rebuilds and piston servicing, these plain rings provide the basic sealing component for compatible cylinders and are sized to match the listed bore and ring thickness for accurate replacement during machining or assembly.
Mahle Rings 4.005in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)