Installing Trailer Connector and Junction Box on 20ft Gooseneck Trailer

Updated 04/08/2015 | Published 04/07/2015

Products Featured in This Question

Pollak 10-Terminal Junction Box

(128)

$50.49

10 Gauge Wire - Blue Primary - Per Foot

(110)

$1.61

16-Gauge Bonded 3 Wire - per foot

(43)

$1.43

Question:

Have a 2008 F550 with brake controller built in, and am rewiring a 20 ft. goose neck trailer with electric brakes to vehicle which wiring code will I use to match the to. Have purchased all equipment from etrailer to do the job with

asked by: Lenord C

Expert Reply:

If you click on the link I've provided, you can see our Trailer Wiring FAQ article, which will show you exactly how the connector on your gooseneck trailer should be wired.

I took the liberty of looking in on your order, and saw that you're using a # HM20048 wiring connector and a junction box, which is exactly what I'd recommend. I've provided a wire color code chart for the # HM20048 connector.

I've also linked you to an install video for the junction box, which will show you exactly how to join the trailer connector, junction box and the existing wiring on the trailer.

To run the lighting circuits, use a bonded 3 conductor wire like part # 16-3B-1 and for the brake circuit, use the # 10-1-1 brake wire, both of which are sold by the foot.

expert reply by: Mike L