Mahle OE HV385 top ring set, 4.075" diameter by 1.5mm (.151") with RW moly finish as specified in the listing. The plasma-moly treated steel top ring in HV385 profile is presented for direct-fit applications that require the 4.075 x 1.5mm sizing. Use it where the exact HV385 geometry and surface treatment are specified for rebuilds.
Mahle Rings Performance Plasma Moly Steel HV385 Top Ring 4.075in x 1.5MM .151in RW Moly Ring Set