Hi everyone. Just purchased a 1940 Farmall A tractor. The wires had been removed. It has the push-pull ignition switch and was converted to a 12-volt system. I am in desperate need for a wiring diagram. The ones I have found on internet have not shown a clear picture of the wiring diagram. Any help would be greatly appreciated.. Find schematics, manuals, specifications and diagrams for ELECTRICAL WIRING. Find genuine OEM parts for your needs. Our Brands FleetPro Reman Precision Leading Lubricants. Our Brands FleetPro Reman Precision Leading. WIRE HARNESS; Rear, HST 15. 2. MT40007022 HARNESS; 16. 1. MT40007141 HARNESS; 17. 1. MT40186104 FUSE 50A; Main 50 amp.
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Ok so I am converting my 1951 Farmall MD to 12V with an internally regulated alternator. I bought a low-cut in 1-wire alternator and wiring harness from the. (800) 853-2651. Any help would be appreciated!!! I have looked at farmallbob wiring diagrams and cant seem to figure anything out. Janicholson Well-known Member. Location Central MN.. Does anyone have a wiring diagram for a Farmall MD, 12 volt negative ground with a distributor? If so, please help, I can't get any fire to the spark plugs. Thank you. I was expecting wiring diagrams when I purchased them, a lot of good information in the manuals with exception of the wiring. I'm not expecting speedy results, sometimes it.