Wiring Harness 1965-74 Ford 2000 3000 4000 Diesel Tractor with Generator 2-Piece. This two-piece wiring harness replaces the complete electrical harness on Ford 2000, 3000 and 4000 diesel tractors equipped with a generator. It provides a replacement for worn or damaged original tractor wiring. Complete two-piece harness? For diesel tractors with a generator. ? Replaces Part Numbers. Dimensions: 13 x 12 x 3 in. Weight: 1.6 lb. ? What’s Included. 1 x Two-piece complete wiring harness. ? Before You Order. Confirm the tractor uses a generator before installation; professional installation is recommended. Not sure it fits? We are committed to providing prompt and helpful support, and we typically respond within 24 hours. Your satisfaction is extremely important to us, and we’ll do our best to make sure your experience is a positive one.