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Headlights wiring location

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=183185
Printed Date: 05 Sep 2025 at 10:03am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: Headlights wiring location
Posted By: Goose
Subject: Headlights wiring location
Date Posted: 11 Sep 2021 at 7:43pm
My C has never had headlights and now I'm putting them on.

I can't figure out the best route for the wires from the headlights.

One route would go along the inside of the hood and the other route would be to go down the sides of the radiator and jump over the lower area of the engine, but they look rather awkward and exposed there.

Does anyone know the correct route of headlight wiring from the headlights to the switch?




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"People are human beings, produced by the society in which they live. You encourage people by seeing the good in them." ~ Nelson Mandela



Replies:
Posted By: PaulB
Date Posted: 11 Sep 2021 at 7:48pm
The GREEN wire in the factory wiring harness splits out at the front of the generator then it connects to the insulated stud in the left side of the radiator shroud. Then the wires from the lights come out the other larger holes to the side of where the insulated stud is. The right headlight wire then come up over the top radiator hose (to keep it out of the fan) to the insulated stud.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY


Posted By: Goose
Date Posted: 11 Sep 2021 at 8:01pm
Originally posted by PaulB PaulB wrote:

The GREEN wire in the factory wiring harness splits out at the front of the generator then it connects to the insulated stud in the left side of the radiator shroud. Then the wires from the lights come out the other larger holes to the side of where the insulated stud is. The right headlight wire then come up over the top radiator hose (to keep it out of the fan) to the insulated stud.

Thank you, Paul!

Now it all makes sense!



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"People are human beings, produced by the society in which they live. You encourage people by seeing the good in them." ~ Nelson Mandela


Posted By: 1939Dodge
Date Posted: 12 Sep 2021 at 9:57am
B&B Custom Circuits has the insulated studs. I installed same when I wired lights on my ‘39 B.


Posted By: PaulB
Date Posted: 12 Sep 2021 at 7:18pm
I've always made my own insulated stud, by using a small grommet that fits the small hole and a #10 machine screw with a small OD flat washer on each side of the grommet, then a locknut to hold everything tight. Been doing that for over 40 years on tractors. 

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY


Posted By: Steve in NJ
Date Posted: 13 Sep 2021 at 8:09am
We offer a complete Headlight repair kit for the B,C,CA Tractors. Comes with all new pigtails, springs, insulators, & hardware and new junction. If you visit our website, the kit is located in the system repair section.
Steve@B&B


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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife



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