In this video we go over how easy and fast it is to convert a 4 flat harness to a 7 way. If you own an older vehicle chances are it will have neither trailer package factory installed nor t connectors available for it.
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How to install a trailer wiring harness. Repeat this process for the passenger side taillight. Now we went ahead and already removed all the old wiring on this trailer before we began this video. Here is how i replaced the harness. Does your vehicle have a 4 flat trailer wiring harness but you need to tow a trailer with a 7 way harness. Trailer light wiring basics it will help to have an understanding of trailer light systems and we recommend reviewing trailer wiring diagrams before starting this project. Buy a 4 pin wiring kit with wires at least twenty feet in length so its long enough for your trailer.
Locate a suitable location for the harness clamp for the four wire trailer light connector and harness underneath the back bumper area. Today on our trailer well be doing a rewire using the 35 wishbone 4 way trailer wiring harness with 42 ground wire from optronics part number a35w42b. Unplug the driver side taillight wiring harness behind the interior panel. Im not lost im rving 81536 views. How to wire a 7 pin way trailer plug install a trailer breakaway switch full time rv living duration. This project requires a trailer lighting kit that includes a wiring harness small connection clips a couple rear turn signals and a couple side mounted lights.
Drill a 18 inch hole in the car frame near this location and attach the wiring harness clamp for the light connector with a sheet metal screw. Depending on the size of your trailer and the number of lights you might want to check on the internet for the recommended gauge for your specific trailer. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. So now were ready to start with a clean slate. If you own an older vehicle chances are it will have neither trailer package factory installed nor t connectors available for it. How to install a trailer wiring harness.
This vehicle to trailer wiring harness creates a standard trailer wiring connection by plugging into vehicle harness and tail light assembly and then routing the 4 way harness to the rear end of a vehicle. This vehicle to trailer wiring harness creates a standard trailer wiring connection by plugging into vehicle harness and tail light assembly and then routing the 4 way harness to the rear end of a vehicle. Install the t connection from the trailer wiring harness between the two sides of the taillight wiring harness by clipping the harnesses together using your fingers.
Gallery of How To Install A Trailer Wiring Harness
