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7-Way Wiring Harness for a 2021 Jeep Grand Cherokee L  

Published 04/12/2022



Question:

I’m trying to find a 7-way wiring harness for a 2021 Jeep Grand Cherokee L but your site doesn’t seem to show anything. Do you sell them yet? Thanks!

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Expert Reply:

We do have a wiring harness for your 2021 Jeep Grand Cherokee L. You will need it and a universal harness to add a 7-way connector to your Jeep. The first harness is the Curt Wiring Harness with 4-Pole Flat Trailer Connector item # C27BR. This custom-fit connector plugs into your Jeep's wiring harness, which is located behind your rear tail lights. This will give you a 4-flat connector that you can then use to install the I have linked an installation video below.

The second harness you will need is the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your vehicle with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it. 

To control your trailer's brakes you will also need a brake controller. I recommend the Redarc Tow-Pro Liberty Brake Controller - Proportional item # RED24FR. This brake controller has a unique installation method where you can mount the control knob on your dash or console and hide the main unit out of sight. This is a proportional brake controller that automatically adjusts your trailer's braking based on the deceleration of your Jeep. You will need the Universal Wiring Harness item # RED69FR to complete your installation.


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