Mahle Performance Plasma Moly top ring HV385, 3.444" x 1.0 mm (.143" RW), is a plasma moly steel piston top ring supplied at the stated diameter and section. It serves as a direct replacement ring for applications requiring a 3.444" top ring and the HV385 specification, suitable for engine rebuilds, maintenance, or stocking to match piston and bore tolerances.
Mahle Rings Performance Plasma Moly Steel HV385 Top Ring 3.444in x 1.0MM .143in RW Moly Ring Set