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Mahle OE Moly top ring set is a plasma steel top ring sized 4.030 in with 1.0 mm thickness and .143 in RW, produced with an HVOF moly finish. Sold as a ring set for piston assemblies, the precise diameter and thickness help ensure correct selection for bore-specific replacement during engine rebuilds and repairs. Reference the dimensions when matching rings to pistons and cylinder bores.
Mahle Rings Performance Plasma Steel Top Ring 4.030in x 1.0MM .143in RW HVOF Moly Ring Set
