This is a A-585624C1 Alternator Internal Voltage Regulator (Heavy Duty) PN: 585624C1Main Description As Following : A-585624C1 Alternator Internal Voltage Regulator (Heavy Duty) P.N: 585624C1 For Delco Alternators: 1100578, 1100583, 1100585, 1100587, 1100593, 1102375, 1102920, 1102921, 1103160, 1103171, 1103183, 1103184, 1103971, 1105164, 1105538, 1107178, 1116387, 1116392,Replaces: 1116392, 1116387 DELCO Stocked As: A-NR-161 , Crosses To: A-NR-161 , Found in Section & Models : Ignition & Electrical Parts > Alternators & Related Parts, Case-IH BACKHOE: 480E, Case-IH BACKHOE: 580K, Case-IH COMBINE: 1420, Case-IH COMBINE: 1440, Case-IH COMBINE: 1460, Case-IH COMBINE: 1660 (S/N