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Mahle plasma-moly moly top ring set supplied in a 48-quantity bulk pack, specified at 4.170" x 1.5mm .151 RW. These moly-faced top rings are intended for engine rebuild and production use where large quantities of this precise ring size and profile are required to maintain consistent piston sealing and wear properties.
Mahle Rings Perf 4.170in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)
