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Mahle Performance Plasma Steel top ring set, 4.070" diameter, listed as 1.0MM with .143" ring width and HVOF moly coating. The top compression ring set uses plasma steel construction and an HVOF moly surface finish sized to these dimensions, supplied for direct replacement where this exact ring geometry is specified.
Mahle Rings Performance Plasma Steel Top Ring 4.070in x 1.0MM .143in RW HVOF Moly Ring Set
