Head Lamp Wiring

Another question arises from Texas and Luxembourg which brings me to resurrect some old notes.

The wiring along the inside of the Left Hand Front Fender (Mudguard) consists of three wires that run from the six (6) post junction block on the firewall to the two (2) post junction block on the inside front of the Left Hand Fender.

The type of casing of this three (3) wire harness is the question sometimes asked and it can be either wire braided or taped with original style black harness tape.

The question relates as to which one was used first and when was the changeover made.

Now before I put my views forth it is not my intention to start an argument as to the serial number when the change was made. There are different opinions on that matter by either very knowledgeable people and others as to whether the books, manuals, parts lists, etc. are right or wrong. Or what was found on a particular Jeep that proves everything everyone else believes is questionable except the person wanting to prove their very own opinion.

The facts are there were changes, the dates were approximate and it’s up to you, the restorer, to make up your own mind, after all it’s your Jeep, do it your way and sleep at night knowing you are happy.

Early production Jeeps used the wire braided harness, Willys Part Number A-1665 (GPW-14425).

Later production Jeeps used the black taped harness, Willys Part Number A-7825 (GPW-14425-B).

Willys MB up to approximately 238835 around June, 1943 we suggest should have the metal braided A-1665 harness.

Willys MB after 238835 or after June, 1943 should have the black taped A-7825 harness.

GPW’s changed from approximately early 1944, but as Ford was following Willys instructions on changes they usually lagged behind and Ford generally did not document the change dates at all.

We produce thousands of wiring kits at a time as follows:

A-2000A kits which fit early Willys MB’s and GPW’s – we include the wire braided A-1665 harness.

A-2000B kits which fit later Willys MB’s and GPW’s with the Push/Pull Headlight Switch – we include the A-7825 black taped harness.

A-2000C kits which fite late Willys MB’s and GPW’s with the Rotary Headlight Switch – we include the A-7825 black taped harness.

Please understand it is difficult for dealers worldwide to hold every variance a restorer might require. If you require, for instance, an A-2000B kit with the wire braided A-1665 harness ask your dealer and they will make every effort to assist you or order your kit from M.V. Spares on www.mvspares.com and we will ensure you receive what you need.

I would like to take this opportunity to point out that not all wiring kits using the M.V. Spares part numbers A-2000A, A-2000B and A-2000C are of our high quality production.

The kits sold under the name Seal Tested are poor quality copies. Using our part numbers without our permission and inserting our wire descriptions and other instructions in these Indian made kits does not raise the quality to the enviable M.V. Spares level.

If you need further assistance please feel free to contact us through our website.

Happy and safe Jeep restoring,

Darcy Miller

M.V. Spares Jeep Wiring Kit Selection

Selecting the correct Wiring Kit for your Jeep

We have provided the following table to assist you with the selection of the Wiring Kit you require for your Jeep.

Please select the features of your Jeep and you will be able to correctly order your Wiring Kit.

 

A-2000A Wiring Kit
Early

This kit is for either of the early production MB/GPW Jeeps such as the Slat Bar Grille MB or the 1942 GPW which is not fitted with the following:

Fender mounted Blackout Driving Light Trailer Connection Socket in the Rear Panel

These early production Jeeps will be fitted with a Radio Filter Box mounted on the firewall under the dashboard and a Push Pull Main Headlight Switch.

Connectors required for this kit:  3 x 2 Wire & 2 x 3 Wire

 

A-2000A*D Wiring Kit
Early

This kit is for either of the early production MB/GPW Jeep which is not fitted with the following:

Fender mounted Blackout Driving Light Trailer Connection Socket in the Rear Panel

These early production Jeeps will be fitted with a Radio Filter Box mounted on the firewall under the dashboard and a Push Pull Main Headlight Switch.

This kit is set up for Twin Red Oval Stop Lights.

Connectors required for this kit:  4 x 3 Wire

 

A-2000B Wiring Kit
Standard – Push Pull Headlight Switch

This kit is for either of the mid series production MB/GPW Jeeps which will be fitted with the following:

Fender Mounted Blackout Driving Light
Trailer Connection Socket in the Rear Panel
Radio Filter Box mounted on the firewall under the dashboard

These mid series Jeeps will be fitted with a Push Pull Main Headlight Switch.

Connectors required for this kit:  4 x 2 Wire & 2 x 3 Wire

 

A-2000B*D Wiring Kit
Standard – Push Pull Headlight Switch

This kit is for either of the mid series production MB/GPW Jeeps which will be fitted with the following:

Fender Mounted Blackout Driving Light
Trailer Connection Socket in the Rear Panel
Radio Filter Box mounted on the firewall under the dashboard

These mid series Jeeps will be fitted with a Push Pull Main Headlight Switch. This kit is set up for Twin Red Oval Stop Lights.

Connectors required for this kit:  1 x 2 Wire & 4 x 3 Wire

 

A-2000C Wiring Kit
Late – Rotary Headlight Switch

This kit is for the late production MB/GPW Jeep which will be fitted with the following:

Fender Mounted Blackout Driving Light Trailer Connection Socket in the Rear Panel

These late production Jeeps will be fitted with a Rotary Main Headlight Switch and not fitted have a Radio filter Box under the dashboard.

Connectors required for this kit:  4 x 2 Wire & 2 x 3 Wire

 

A-2000C*D Wiring Kit
Late – Rotary Headlight Switch

This kit is for the late production MB/GPW Jeep which will be fitted with the following:

Fender Mounted Blackout Driving Light Trailer Connection Socket in the Rear Panel

These late production Jeeps will be fitted with a Rotary Main Headlight Switch and not fitted have a Radio filter Box under the dashboard.

This kit is set up for Twin Red Oval Stop Lights.

Connectors required for this kit:  1 x 2 Wire & 4 x 3 Wire