Alternator Wiring Diagram D+. THIS IS THE WIRING DIAGRAM FOR A TYPICAL ALTERNATOR. B is the alternator output wire that supplies current to the battery.
And connect the red wire to the output side of the alternator 1032 stud take the long wire and connect to the side of the coil. Strip insulation from 4 dk brown wired and F blue wire and splice them together. D is for the exciter alternator dash signal light and voltage regulator circuit.
If a new regulator is being installed along with the alternator complete its wiring.
Strip insulation from 4 dk brown wired and F blue wire and splice them together. Connect alternator to Balmar regulator wiring harness as indicated in wiring diagram included on Page 12. Should this D lug be fed off the ignition either the same lead that goes to the fuel solenoid purple or another charge indicator light run outside of cummins wiring loom. If it is not 125 volts then the battery may be flat and the light will come on when the alternator is running.