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The Mahle OE moly top compression ring set is a sized replacement ring set at 3.9150 in x 5/64 in intended for piston sealing and engine rebuild work. Offered as a standard set, these moly-coated top compression rings provide the abrasion-resistant sealing face required for many rebuild applications, making them suitable for professional or DIY engine work where correct ring sizing matters.
Mahle Rings 3.9150in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set
