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Mahle OE Moly top ring set is a plasma steel top ring sized 4.025 in with 1.0 mm thickness and .143 in RW, treated using an HVOF moly process. Offered as a ring set for piston assemblies, the dimensions and finish information are provided to help confirm fitment during engine rebuilds or repairs. Use the listed diameter and thickness to select the correct replacement for matching cylinder bores.
Mahle Rings Performance Plasma Steel Top Ring 4.025in x 1.0MM .143in RW HVOF Moly Ring Set
