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Mahle plain ring set, Performance Napier THM-13, sized 4.190 x .043 with .135-inch second ring width, supplied as a 48-count bulk pack. These plain piston rings are intended for engine builders and shops purchasing rings in quantity for rebuilds or production work, offering consistent dimensional specification across the bulk set for matching pistons with the listed ring dimensions.
Mahle Rings Performance Napier THM-13 4.190 x .043 .135in RW Plain Ring Set (48 Qty Bulk Pack)
