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Mahle OE Moly top ring set is a plasma steel top ring sized 4.040 in with 1.0 mm thickness and .143 in RW, finished using HVOF moly process. Offered as a ring set intended for piston assemblies, the listed dimensions help match these rings to the correct cylinder bore in engine rebuilds and maintenance. The specification-focused listing is intended to assist technicians selecting rings by exact diameter and thickness.
Mahle Rings Performance Plasma Steel Top Ring 4.040in x 1.0MM .143in RW HVOF Moly Ring Set
