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Complete Wiring Harness - Made in the USA
Fits 50-52 M38 in 24 volt

Part # HARNESS-12

New Complete Replacement Wiring Harness

All made to factory specs and pre-terminated wiring. Does entire vehicle tip to tail including under dash, engine, brake lights, etc... Uses proper style materials for time period including clamps and covers. Comes complete with wire by wire instructions. Proper for your 24 volt military restoration. A must to do it right.

50-52 M38

Specify year, model, and motor when ordering.

Custom Made to order. Allow 12-14 weeks for delivery.

Comes less Douglas connectors part number: 573000

Part # Price





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Questions & Answers

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Hi Mike, I am restoring a 52 M38 24 volt. I ordered and received my wiring harness but do not see the instructions in the box. Can you email me the wiring harness diagram. I see numbered clips on the wires but don't see all the original ones I need to replace. Thanks

Willys Jeep Parts Tech:
Email and we can certainly get you a copy.

Does this include the cable that goes between the generator and regulator?

Willys Jeep Parts Tech:
No it does not. That cable is part number 806409

Hello, I am interested in the complete electrical harness for jeep willys m38 24 volts with flashing and douglas connector + transport to France can you give me a price thank you

Willys Jeep Parts Tech:
Please email your full shipping address and we can quote you out. Thanks!

Will this wiring harness work for my 1964 dodge d200 5.2 L V8?

Willys Jeep Parts Tech:
Sorry, we dont make any harnesses for Dodge vehicles.

My truck is a 1952 M37. Will this wiring harness work for my truck?

Willys Jeep Parts Tech:
No, but we can make a harness for you. Please email

Is there a difference in the 24 volt fording harness vs non fording. I'd imagine the fording harness is more expensive die to water proof connections? If so...are the interchangeable as I dont plan on submerging mine.

Willys Jeep Parts Tech:
The deep fording option really didnt have any effect on the way the harnesses were made. All 24 volt harnesses were water resistant connections.

Do you have or can you produce a complete one for a 1954 M37 Dodge pickup?

Willys Jeep Parts Tech:
Sorry, we do not.

Does this kit come with a horn button kit? Or the dash spider wiring harness?

Willys Jeep Parts Tech:
Yes, it will have the spider harness. If you require turn signals then we can do it that way too. We do offer a turn signal kit which included flasher and lever assembly with wiring.

I just got a 51 m38 - 24 volt -has not be started in 20 years,but stayed under cover, motor looks good, it turns, oil and antifreeze looked fine I am just cleaning things up and wanting to first see if I can get it stared and go from there all the wiring looks worn - hard to even see the how and if the ignition switch was even in tact visually the starer and generator look OK so if I can get this started - and the generator and starter work - I think i should stay with the 24 system but will need a complete new wiring harness and then all the gauges that go with it Can I get the instructions for that wiring harness? for now and until I see how well the engineer works - any suggestions on how to get things going for now without the new harness thanks for any information - best will

Willys Jeep Parts Tech:
Email and I can try to help you out. Thanks!

Is there a fuse panel on the M38? Or any protection on the wiring system? Breakers?

Willys Jeep Parts Tech:
Yes, they did use breakers on the M38

Does this harness come with the turn signal wires?

Willys Jeep Parts Tech:
This harness does not come with the turn signal wiring. You can add it by purchasing part #947345. Thanks

Can this be made with the rubber shell connectors?

Willys Jeep Parts Tech:
We probably can custom make it for you. Please call and ask for Mike M.

Is it possible to get the main harness. I believe it is the chassis? I already have the dashboard wiring 24volt?

Willys Jeep Parts Tech:
I can probably custom order it for the 24 volt. Please call and ask for me Mike M.

This does not include douglas connectors? ans also What all are you getting? by complete, what do you mean, how complete? what does it not include?

Willys Jeep Parts Tech:
The connectors are separate. For a complete list of all the wiring please email It is everything shown in the photos. A complete wiring kit.

Does this come with the wiring for a jeep radio?

Willys Tech:
No, that is separate.

What is the estimated time to install this?

Willys Tech:
It really depends how handy you are. It does come with simple to follow wire for wire illustrated install instructions.

Does this harness come with the metal twist connectors on the ends?

Willys Tech:
You have to use your original ones or we can get you some too.

Will this fit for a jeep with the 12 volt conversion?

Willys Tech:
No, this is for 24 volt only. Please call me toll free. I have one that will work.
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