Recommended Replacement 7-Way Trailer Connector and Junction Box

Published 01/15/2023

Products Featured in This Question

10 Gauge Wire - Blue Primary - Per Foot

(107)

$1.65

12 Gauge Wire - Black Primary - Per Foot

(30)

$2.01

Junction Box and Installation Kit for Autowbrake Trailer-Mounted Electric Brake Controller

(26)

$38.00

Hook Probe Circuit Tester

(65)

$12.94

Question:

I am looking for the correct harness for my 5th wheel trailer. I have the female 7 prong socket on my truck. I need the correct harness to plug into that socket and then run to the trailer so i can connect the lighting to. I am rewiring the lights also. Do you have a separate kit for that? The trailer is 24 long. Thanks for the help.

asked by: Mark L

Expert Reply:

To wire in a new 7-way connector to your 5th wheel trailer you will want the Junction Box and Installation Kit item # 3430001-JBK and the 11' Hopkins 7-Way Molded Trailer Wire Connector item # HM20048. This kit comes with ring terminals, heat shrink wrap, and a junction box. The box will allow you to secure your 5th wheel's wiring in one water tight organized location. The 11' foot 7-way cable will give you flexibility when deciding where to mount your junction box.

We do not have any rewiring kits for an entire trailer but do have all of the parts you will need like the item # 10-1-1 which is 10 gauge wire sold by the foot and item # 12-1-1 which is 12 gauge wire and also sold by the foot. I recommend using the Hook Probe Circuit Tester item # PTW2993 to test your wires to verify what their functions are.

I have linked an installation video below for you to take a look at.

expert reply by: Jerred H