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Mahle Performance Plasma Steel top ring set, 4.065" diameter, specified 1.0MM with .143" ring width and HVOF moly coating. The set combines plasma steel construction with a high‑velocity oxygen fuel (HVOF) moly surface treatment to meet the listed dimensions, intended as a top compression ring replacement for compatible piston applications.
Mahle Rings Performance Plasma Steel Top Ring 4.065in x 1.0MM .143in RW HVOF Moly Ring Set
