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The Mahle OE plain ring set is a bulk pack of performance steel piston rings specified as Napier THM-13 with a 4.565 inch diameter and .043 inch section, supplied in a 48-quantity bulk pack. These plain rings are intended for piston and engine rebuild applications matching the listed dimensions and offer OE-style replacement parts in bulk form for workshop use.
Mahle Rings Perf Steel Napier THM-13 4.565in x .043in .135 RW Plain Ring Set (48 Qty Bulk Pack)
