Wire harness

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Wire harness

Postby Harold R » Wed Jul 14, 2004 9:37 pm

My effort to restore my '50 model to 6v is well underway. I have all components with the exception of a wire harness. Carter & Gruenewald list a 4-wire, 7-wire or 8-wire. I have serial #114646, which I believe was after the switch to the distrubutor. I will have front and rear lights. Which harness would be required?
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Postby John *.?-!.* cub owner » Wed Jul 14, 2004 9:45 pm

7 and 8 wires are for tractors with voltage regulater (as oppposed to cutout that is mounted on top of generato). 8 wire is for headlights that have a ground wire as well as the power lead. 7 wire if headlight only has one wire.
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Postby Harold R » Wed Jul 14, 2004 9:57 pm

Well, it didn't have anything left of the original electrical system, not even the lights, so I don't know how it came from the factory. I assumed it had a voltage reg., so I got that. 2 prong push-pull kill switch, because it appears that the distributor on it is original. As far as a ground wire to the lights.....dunno.
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Postby Jim Becker » Wed Jul 14, 2004 10:14 pm

The information I have is that the change to voltage regulator and battery ignition happened at 115403. Yours is pretty close to that number so I suppose it is open to some conjecture. Either way, your tractor would not have had ground wires to the lights.
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Postby Wireharness » Thu Jul 15, 2004 6:52 am

The change from relay to regulator was ser# 187002 on the Farmall M

The Farmall H Ser# 340954

The Cub was late 1949 for the 1950 models

There are 7 different main harness's for the Farmall cub and Cub Loboy
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Postby Jim Becker » Thu Jul 15, 2004 8:36 am

I'd never looked at the H and M changeovers. Based on these numbers the M was done considerably before the others. The M would have been about mid-year '49. That H number is more than half way through '50.

Super A changed at 286222, which is also more than half way through '50. The Cub changeover was a few months after the Super A.
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