Model T Lighting Wire Loom
The wiring for the headlights and tail lights. The early 1919-25 harness takes care of the lighting on the left side of the car, and the T-5031 accomodates the right side. TT trucks use T-5041, but you will have to lengthen the tail light wire. The 1926-27 (T-5041-E) harness covers all lights. U.S.A.