Help - Alternator Wiring Harness
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Help - Alternator Wiring Harness
So I was changing the belt on my truck and discovered that the wiring harness going to the alternator was more or less melted. I haven't been able to find one to buy anywhere, but I found one for a mustang (same motor) that looked similar to build from. So far I'm not having any luck getting it right.
Does anyone know where I can buy a harness? Or can someone send me a photo of their harness or know where I can find a wiring digram that I can use to build one? My old one is so shot I can't tell what was running where.
The truck is a 1970 F100 with a 360.
Does anyone know where I can buy a harness? Or can someone send me a photo of their harness or know where I can find a wiring digram that I can use to build one? My old one is so shot I can't tell what was running where.
The truck is a 1970 F100 with a 360.
Junior User
Joined: May 2013
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Master Diagram
Here's a link to a 'Master Diagram' for your truck. Hope it helps.
http://www.fordification.com/tech/wi...-70_master.jpg
http://www.fordification.com/tech/wi...-70_master.jpg
Posting Guru
Joined: Jun 2007
Posts: 1,724
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From: Butler, IN
Maybe it is time to do a 3G swap and update 40 year old technology? Might be cheaper and easier?
https://www.ford-trucks.com/forums/1...lternator.html
https://www.ford-trucks.com/forums/1...lternator.html
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
So I was changing the belt on my truck and discovered that the wiring harness going to the alternator was more or less melted. I haven't been able to find one to buy anywhere, but I found one for a mustang (same motor) that looked similar to build from. So far I'm not having any luck getting it right.
Does anyone know where I can buy a harness? Or can someone send me a photo of their harness or know where I can find a wiring digram that I can use to build one? My old one is so shot I can't tell what was running where.
The truck is a 1970 F100 with a 360.
Does anyone know where I can buy a harness? Or can someone send me a photo of their harness or know where I can find a wiring digram that I can use to build one? My old one is so shot I can't tell what was running where.
The truck is a 1970 F100 with a 360.
Mustang alternator harnesses have been reproduced, but they don't always work on F100/350's.
1970/72 F100/350: There are two different alternator harnesses:
DOTZ-14305-S .. Use with oil/amp GAUGES / DOTZ-14305-X .. Use with oil/amp WARNING LIGHTS.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Since most parts are typed into websites with the letter O and that's how we pronounced it, that's how I list the part number. But I always run it both ways.
D0TZ-14305-S = NOS PARTS LTD in Waxahachie TX has 1 = 972-937-2201.
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Maybe it is time to do a 3G swap and update 40 year old technology? Might be cheaper and easier?
https://www.ford-trucks.com/forums/1...lternator.html
https://www.ford-trucks.com/forums/1...lternator.html
Can you clarify a little more how the wiring side of things would work. I only know enough about electrical to get myself in trouble.
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Cargo Master
Joined: Feb 2006
Posts: 3,009
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From: North Pole, Alaska
It's easy to rebuild a wiring harness. I did my 72 F-100's back in the 80's in my dorm room on a Saturday afternoon without any electric training at all. Just replace wire for wire and add a fusible link, and wrap it up with tape.
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Posting Guru
Joined: Mar 2006
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you don't need to buy a harness.
here's all the diagrams you'll need, whether you go 1G or 3G:
Fuel Injection Technical Library » Alternator Files
for what its worth, the 3G is a great swap, but if you're not electrically-minded, it may be best to just rewire what you've got.
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