This is a A-21A654 VOLT. REGULATOR PN: 21A654Main Description As Following : A-21A654 VOLT. REGULATOR P.N: 21A654 W/ Alternator & External RegulatorDim A (1): 12 VoltReplaces: 1119507 & 1119513 - DELCO Replaces: NR-151 ELECTRICAL PARTS , A-W10P3009 WHITE TRACTOR , A-10P3009 WHITE TRACTOR , A-1031060M1 MASSEY FERGUSON , 1031060M91 MASSEY FERGUSON , 1031060M92 MASSEY FERGUSON , 1031060V92 MASSEY FERGUSON , A-1071060M91 MASSEY FERGUSON , 1119507 ALLIS CHALMERS , 1119513 RIVERSIDE TRACTOR , 1119515 IH , 1119516 CASE/INTERNATIONAL HAR. , 158732AS WHITE TRACTOR , A-166626A WHITE TRACTOR , 21A621 RIVERSIDE TRACTOR , 30-3001806 WHITE TRACTOR , 303001806 WHITE TRACTOR , 384988R91 CASE/INTERNATIONAL HAR. , A-65302C1 CASE/INTERNATIONAL HAR. , A-70243986 ALLIS CHALMERS Found in Section & Models : Ignition & Electrical Parts > Alternators & Related Parts, Case-IH COMBINE: 303, Case-IH COMBINE: 315, Case-IH COMBINE: 403, Case-IH COMBINE: 503, Case-IH COMBINE: 615, Case-IH COMBINE: 715 (S/N <23001), Case-IH COMBINE: 815, Case-IH COMBINE: 915 (S/N <8000), Case-IH COTTON PICKER: 616, Case-IH COTTON PICKER: 622, Case-IH TRACTOR: 1066, Case-IH TRACTOR: 1466, Case-IH TRACTOR: 766, Case-IH TRACTOR: 966, Gleaner COMBINE: E3, Gleaner COMBINE: F, Gleaner COMBINE: G, Gleaner COMBINE: K Associated Items : New Also A-IH-P-303, A-IH-P-315COMB, A-IH-P-ENG56CYL, A-IH-P-ENG6CYLG, A-IH-P-403, A-IH-P-403HSCMB, A-IH-S-ENG460ETC, A-IH-S-ENG6CYLG, A-IH-O-503COMB, A-IH-P-503COMB, A-IH-O-715ERLY, A-IH-P-ENG56CYL, A-IH-P-8CYLGAS, A-IH-P-815COMBE, A-IH-P-815COMBL, A-IH-S-ENGD361, A-IH-S-ENG3400, A-IH-S-815915, A-IH-P-ENG56CYL, A-IH-P-8CYLGAS And : Dim A (1): 12 Volt Replaces: 1119507 & 1119513 - DELCO