Mahle OE HV385 top ring set, 4.035" diameter by 1.5mm (.151") with RW moly finish, listed as a 48-count bulk pack. The entry specifies a plasma-moly steel HV385 profile top ring sized to 4.035 x 1.5mm for applications requiring multiple identical rings. It’s aimed at rebuild operations needing exact HV385 ring dimensions in volume.
Mahle Rings Perf Plasma Moly Steel HV385 Top Ring 4.035in x 1.5MM .151in RW Ring Set (48 Qty Bulk)