Ford voltage regulator diagram

New product

Diagram and electrical diagram of the motorcraft voltage regulator which is the one used by the Ford brand.

Ford voltage regulator diagram

The motorcraft voltage regulator for external use is one of the most used for the replacement of relay regulators for its easy external installation and durability. This is not like GMs that come internally or embedded within the alternator itself.

Pin Description.

I: Indicator: This terminal turns on the regulator when connected to positive, it usually goes in series with a fault indicator lamp.

A: Alternator: Terminal that goes to the B + or BAT of the alternator. It is the voltage measurement terminal that goes to the battery.

S: Stator: Terminal that measures if the alternator is generating voltage. It goes to the S terminal of the alternator and in some models it can measure the tension of the star center or only the stator voltage without rectification.

F: Field: Terminal that controls the alternator field current. It goes to the F terminal of the alternator (it is the one that comes from one of the coals). Important to note that this terminal exercises positive control. That is, the other terminal of the field must be terrified.

Earth: Negative terminal of the regulator, this is to say hidden. The regulator must be solidly grounded to function properly.

Connection diagram of the Ford regulator to a Motorcraft alternator.

Esquema de regulador de voltaje ford

As you can see it is quite simple to implement, in this case just do not put an ammeter, but if you want to do it, you can place it between the positive of the battery and the bat terminal of the alternator, but be careful, just after the connection to terminal A.

Electrical connection scheme

For those who know a little below I leave the electrical connection diagram of the Ford regulator.

diagrama de regulador de voltaje ford

The capacitor is optional, many alternators do not bring it because sometimes it is embedded in the regulator.


¿Questions or doubts?

Use the form below to make them, we will gladly answer.

Follow me on my Social Networks

boton de chica mecanica youtobeboton chica mecanica instagram

Written by:

Dennis García.

Chica Mecánica


Super útil

Gracias por este diagrama, lo necesitaba.

    Write your review!

    Write a review

    Ford voltage regulator diagram

    Ford voltage regulator diagram

    Diagram and electrical diagram of the motorcraft voltage regulator which is the one used by the Ford brand.

    Ask a question

    NO registration required!

    1 Question(s) answered

    If the question you have has not yet been answered here, use the form below to ask something about this addon.

    *(Required to be notified when an answer is available)
    • Asked by Franklin
      on 09/11/2019
      Hola. Tengo un Suzuki alto K10. Se dañó el regulador y adaptaron otro pero siento que quedó diferente. El regulador original tenía 4 pines, el nuevo tiene 3 y colocaron otro conector sin cortar el original. Este otro pin hace falta? Creo que es el F. ES MUY IMPORTANTE TENERLO? ( Siento que quedó corto de fuerza. Tiembla cuando estoy en ralentí y enciendo luces.) Gracias Answer:
      Si cortocircuitaron o pusieron con resistencia el borne (F) del alternador, no hay regulación de voltaje, es muy importante que este borne este controlado. Si me envias un modelo del nuevo regulador o las iniciales de los bornes, puedo darte una mejor ayuda.

    If the download link redirects to another product that is not described in the article or is broken, report it using our Reporting Form