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Mahle OE Moly top ring set is a plasma steel top ring specified at 4.045 in diameter with 1.0 mm thickness and .143 in RW, finished via HVOF moly. Provided as a ring set for piston assembly use, the dimensional detail supports accurate selection for bore-matched replacements in engine rebuilds and repairs. Use the given diameter and thickness to ensure the ring fits the intended cylinder bore.
Mahle Rings Performance Plasma Steel Top Ring 4.045in x 1.0MM .143in RW HVOF Moly Ring Set
