This is a A-393820R91 Alternator, Delco PN: 393820R91Main Description As Following : A-393820R91 Alternator, Delco P.N: 393820R91 Type: DelcoVolt/Amperage: 12/61 Stocked As: A-AL-142 Found in Section & Models : Ignition & Electrical Parts > Alternators & Related Parts, Case-IH COMBINE: 503 (3251>) Associated Items : New Also A-IH-O-503COMB, A-IH-P-503COMB And : Type: Delco Volt/Amperage: 12/61