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The Mahle OE moly ring set is a plasma-moly steel top ring assembly sized for a 4.200 in bore with a 1.5 mm ring thickness and .151 ring width, built for restoring proper sealing and ring control in high-mileage or rebuilt engines. These rings provide reliable ring-to-cylinder contact and wear resistance during break-in and regular use, suitable for engine rebuilds and performance rebuild applications.
Mahle Rings Performance 4.200in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set
