The following article was contributed by Don & Derek Barkley. It contains information about Ford Tractors Original Wiring Harness including 9N 14401-A, 9N 14401-B, 9N 14401-C, 8N 14401-B, 8N 14401-C, and FAF 14401-B models.
This is a Ford, cloth wrapped 9N 14401-C. It was used on 9N tractors equipped with the “B” generator, cutout, and “loop” style amp gage from serial number 12500 up to about 35000 or so. It could also be used with the 9N10000-C generators if the tractor needed to be retrofitted with a replacement generator. Both the “B” and “C” generators were 3 brush type. The 9N 14401-D harness was the same as the “C” with one exception. The dash light wiring was not made into the harness but was a separate item.
Find the detail of the Ford Tractors Original Wiring Harness here (6 pages of pdf file docs. Source: ntractorclub.com – best internet source of information and help for Ford Tractors)