What 5-Way Wiring Harness do You Recommend for My 2021 Jeep Wrangler Rubicon without Tow Package?

Question:

Does the C57187 come with directions on how to find the backup light wire as I assume it must hook into it somehow?

asked by: Jeff

Expert Reply:

I have a great 5-way solution for you. Unfortunately, we do not make a 5-way customized harness, but we do carry the parts needed to create one for your application. For this route on your 2021 Jeep Wrangler without a factory tow package, I recommend using the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118786 along with the Curt Trailer Connector Adapter - 4-Way Flat to 5-Way Flat - Vehicle End # C57187.

If you are using this setup for a boat trailer application, I strongly suggest you use Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation # DW05745-5 instead of the quick-splice connectors. The heat shrink connectors will give you greater protection about water infiltrating the connection points.

expert reply by: Bob C

Jeff

1/1/0001

Does the C57187 come with directions on how to find the backup light wire as I assume it must hook into it somehow?

Bob C.

12/20/2021

According to the specs we have on your 2021 Jeep Wrangler Rubicon, the backup light is a brown wire. In order to make confirm that this is the correct wire, I recommend using a circuit tester like the # PTW2993 to read the current of the wire.