The Mahle Performance Plasma Moly top ring set provides a plasma-moly steel top compression ring sized 3.189 inches with a 1.0 mm thickness and .143 inch ring width. Intended as a replacement or upgrade for compatible engines, this ring set offers improved wear resistance and sealing over conventional rings while fitting standard ring grooves for correct installation and serviceability.
Mahle Rings Performance Plasma Moly Steel HV385 Top Ring 3.189in x 1.0MM .143in RW Moly Ring Set