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The Mahle OE plain piston ring set is a Performance Steel Napier THM-13 group sized 4.085 x .043 with .135 RW, supplied in a 48‑piece bulk pack. It delivers the specific ring dimensions and plain ring construction for rebuild shops or high‑volume replacement needs, allowing technicians to select rings that match pistons requiring these precise measurements.
Mahle Rings Performance Steel Napier THM-13 4.085 x .043 .135 RW Plain Ring Set (48 Qty Bulk Pack)
