1980-1993 Dodge D-150 D-Series Ram OEM alternator starter relay voltage regulator. Fitment research points to 1980-1993 models, see photos for fitment details. Factory electrical component used in the charging and starting system and works as a direct replacement for a faulty or non-working unit. In vintage used condition with normal wear from age and use including rust, rust staining, oxidation on metal, dirt, and dust. See photos for full condition details before purchase.