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The Mahle OE plain ring set for Napier THM-13 is supplied as a bulk pack of 48 rings sized 3.551 in x 1.5 mm. These plain piston rings provide the basic sealing and wear-control function needed in ring sets, and the bulk packaging supports rebuild or high-volume use. Specification is taken from the original fitment data for clear sizing and application reference.
Mahle Rings Performance Napier THM-13 3.551in x 1.5MM Plain Ring Set (48 Qty Bulk Pack)
