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Mahle OE plasma moly steel top rings specified at 4.000" diameter, 5/64" section and .146" ring width are offered in individual sets for top-ring use. The plasma moly finish is intended for wear resistance in top ring applications and suits engine rebuilds where a high-quality, OE-style ring surface treatment is required for sealing and longevity.
Mahle Rings Performance Plasma Moly Steel Top Ring 4.000 x 5/64 .146in RW Moly Ring Set
