4 Pin Flat Trailer Wiring Harness

The left and right turn signal lights should each have a different color. Locate a suitable location for the harness clamp for the four wire trailer light connector and harness underneath the back bumper area. The remaining color is the ground wire.

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4 way trailer harness connects to your tow vehicle to control trailer light functions wishbone style harness comes with 2 tail light wires split for simple wiring allows you to run wires.

4 pin flat trailer wiring harness. Drill a 1 8 inch hole in the car frame near this location and attach the wiring harness clamp for the light connector with a sheet metal screw. This is a very simple and easy repair but does require a. Verify the harness color codes at each tail light. Buy 4 pin flat trailer wiring harness kit wishbone style sae j1128 rated 25 male 4 female 18 awg color coded wires 4 way flat 5 wire harness for utility boat trailer lights kits.

Buy a 4 pin wiring kit with wires at least twenty feet in length so it s long enough for your trailer. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. Cut the four pin plug off of the trailer harness. Wishbone style harness comes with 2 tail light wires split for simple wiring features.

There should be a common color for both the tail lights. 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. 4 way trailer harness connects to your tow vehicle to control trailer light functions. Suzco 25 foot 4 wire 4 flat trailer light wiring harness extension kit 4 way plug 4 pin male female extension connector wishbone style with 18 gauge white ground wire with sae j1128 4 5 out of 5 stars 319.

It s 25 ft in length and includes a 4 ft trunk connector splices and clips. In this video we go over how easy and fast it is to convert a 4 flat harness to a 7 way. Does your vehicle have a 4 flat trailer wiring harness but you need to tow a trailer with a 7 way harness. Learn how to repair a trailer wiring harness that was damaged when borrowed by someone who did not connect the wiring to their vehicle.

This accounts for three of the colors in the wiring harness. This harness plugs into 4 way flats to provide left right turn brake and tail lights for trailers. Trailer wiring harness recommendation for a 2007 chevy colorado how to install a 7 way trailer connector to add a 12 volt power lead to a trailer wiring instructions for optronics 4 1 2 inch round trailer stop turn and tail light st40rb.