This Alternator is 12/14 Volts, 150 AMP. If you are unsure whether this is the correct unit for you, please message me for an instant response. This alternator will replace all alternators with any of the following part numbers. If your part number is not on the list or you dont have one please message me for an instant response. 11203103 ISKRA 11203119 ISKRA 2871A412 PERKINS 3789453M92 MASSEY FERGUSON AAN5125 ISKRA aan5136 ISKRA IA1057 ISKRA.