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Ford Tractors Discussion Forum
Order Ford 3000 Parts Online

1974 3000 Gas Wiring harness

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cmcolmn1

10-01-2019 11:31:14




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I had a small run in with a fire this past weekend and trying to locate a wiring harness for a '74 3000 gas burner. I am finding several online for around $50-100 but most are saying for diesel and the only one I have found that specifies 'Gas' is $470!!! Does anyone know what the difference between the gas and diesel wiring harness would be? Thanks in advance for your help.




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cmcolmn1

10-03-2019 11:55:45




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-01-2019 11:31:14  
Good deal. Thank you guys for replying. I found exactly what I was looking for here. Actual people that have done it, not just someone looking at a parts book. Y'all have been extremely helpful and I'm sure I will be back with more questions as I get in to this project. This is my first rodeo so I have a lot to learn.



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Destroked 450

10-03-2019 09:23:59




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-01-2019 11:31:14  
Your local tractor guy is wrong, there is only one front and one rear harness listed for all of the 3 cylinder models, it's been that way since to 80's or before, the electrical section of my factory parts book is dated 1987 and it only shows one harness for the 2-3-400 series.

The 1973 break he's referring to is for the 5-7000 models of which some of those models had alternators, my 74 model 5000 had a generator and used the early wiring harness.

Ultradog gave you good advice and you can purchase a new aftermarket harness from this site for $48.30, I've used a couple of them, no complaints.

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gears

10-03-2019 06:19:54




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-01-2019 11:31:14  
Making a harness isn't that difficult, definitely not $470 worth of parts or labor. Pickup a couple spools of #14 wire in various colors, get some good crimp connectors and go to it.



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cmcolmn1

10-03-2019 06:01:56




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-01-2019 11:31:14  
Okay so I've been talking to a local tractor place and the guy is telling me I need the $470 harness and an additional harness because its gas. Hes saying its because it's post Nov/1973.

Does anyone have any insight on this change in production date? I had another tractor shop mention something about pre/post Nov/1973 models.
I don't mind doing some minor modifications to a harness, like mentioned above, so it doesn't have to be a exact model, I just need all leads to be there.

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Ultradog MN

10-03-2019 06:46:44




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-03-2019 06:01:56  
Your tractor guy doesn't know what he's talking about.
I have installed at least half a dozen of those $50 diesel wiring harnesses - some on gassers and some on diesels and know for a Fact it will work on your gasser if you use that heater wire for your coil feed.
One thing I did not mention before is on the original harness there was a resister wire that plugged into a bullet connector near the starter solenoid to drop the voltage to the coil. It was 3 folds of wire wrapped together. If that wire is not burned up reuse it. If it is burned up buy a true 12V coil - Napa part # IC14

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cmcolmn1

10-02-2019 06:56:09




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-01-2019 11:31:14  
That's the best news I've heard all day. :D I will definitely be getting one ordered from the site. Thanks again for the help.



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Ultradog MN

10-01-2019 14:26:12




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 Re: 1974 3000 Gas Wiring harness in reply to cmcolmn1, 10-01-2019 11:31:14  
Buy the diesel one.
The only difference is the diesel has a 10 ga wire that goes from the key switch to a heater in the intake manifold.
Gas has a smaller 14 ga? wire that goes from the key switch to the coil. Use the diesel heater wire to feed the coil. PS, that heater wire has a big honkin spade connector on both ends. Replace them with a suitable connector to fit on the key sw.
The rest of the harness is identical.
They sell them here on this site.

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