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The Mahle OE moly top ring set is a plasma-steel piston top ring with an HVOF molybdenum finish sized for a 3.952 in bore, 1.0 mm thickness and .143 in ring width. Sold as an individual set, it supplies the exact ring dimensions needed for piston service or replacement where a 3.952 in HVOF moly top ring is called for.
Mahle Rings Performance Plasma Steel Top Ring 3.952in x 1.0MM .143in RW HVOF Moly Ring Set
