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The Mahle OE plain top ring set supplies plain-profile top rings sized for a 4.045 inch bore with 1/16 inch thickness, sold as a 48-piece bulk pack. Labeled PC479, this bulk set is intended for piston ring replacement during engine rebuilds or shop overhauls, offering a straightforward plain-ring option for compatible engine applications where quantity packaging and consistent sizing are required.
Mahle Rings 4.045in Bore Dia 1/16in PC479 Top Rings Plain Ring Set (48 Qty Bulk Pack)
