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The Mahle OE moly top ring set is a plasma-moly steel top ring sized for a 4.190 inch bore with 1.5 mm ring thickness and .151 ring width, intended for restoring sealing and ring control in rebuilt or serviced engines. These rings provide consistent sizing and material in OE-grade replacement sets, useful for single-engine rebuilds or service parts inventory.
Mahle Rings Performance 4.190in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set
