If you have the rotary main switch. To start you want to print the wiring diagram.
Willys Jeep Wiring Amp Electrical Part 1
Willys mb wiring diagram. Willys was a trademark which was used by willys overland motors the american car company most famous for its development and production of military jeeps mbs and civil cjs in the 20th century cars. In 1908 john willys bought the overland automotive division of standard wheel major and in 1912 renamed it willys overland motor company. G503 wwii 1945 willys mb and ford gpw jeep late wiring diagram. This article shows the wiring or re wiring steps for you early to mid wwii willys jeep with a new wiring harness. G503 wwii 1943 willys mb jeep re wire or wiring up your jeep. G503 wwii 1944 willys mb and ford gpw jeep early wiring diagram in 1944 there where two wiring diagrams based on the type of main switch that came with the manufactured jeep.
G503 wwii 1943 willys mb and ford gpw jeep wiring diagram in 1943 willys and ford were using the main push pull switch wiring diagram. Willys car manuals wiring diagram pdf above the page. The top diagram is the push pull main switch and the bottom wiring diagram is the late rotary switch wiring diagram. G503 wwii willys mb and ford gpw jeep early wiring diagram. Over the years as the wiring on a jeep deteriates it is replaced with wiring that is not correct. Here is the wiring diagram for the early model jeep with the push pull main switch.
In 1945 willys and ford were using the main rotary switch wiring diagram.