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The Mahle OE plain top ring set (PC479) for a 4.380 in bore with 1/16 in edge width is a bulk pack of 48 rings intended for engine rebuild or production use. These plain top rings serve the core purpose of sealing combustion and supporting consistent compression when installed to bore specification. Sold as a full 48-piece pack, this set supplies volume needs for repetitive assembly or larger rebuild projects without individual packaging.
Mahle Rings 4.380in Bore Dia 1/16in PC479 Top Ring Plain Ring Set (48 Qty Bulk Pack)
