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Mahle Performance Plasma Steel top ring set, 4.095" diameter, is a plasma‑steel top compression ring specified as 1.0MM with .143" ring width and HVOF moly coating. Sold as a top‑ring set, it combines plasma steel construction with HVOF molybdenum surface treatment to match the dimensional and surface characteristics listed for this size, intended for piston top‑ring replacement in compatible engines.
Mahle Rings Performance Plasma Steel Top Ring 4.095in x 1.0MM .143in RW HVOF Moly Ring Set
