What Wiring do I need to Put a 7 Way on the Back of My 2021 Jeep Grand Cherokee?

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Question:

Hello, I am looking to install a hitch on my 2021 Jeep Grand Cherokee. The Jeep does NOT have a tow package. I have the hitch, but do not know what wiring parts we will need. We are looking to tow a Gulf Stream 1090k with the Jeep, which weighs approximately 1500 lbs. It will need a 7-way plug. Could you advise me on what parts i will need to get the wiring set up for towing? Thank you!

asked by: Catherine

0

Expert Reply:

Hello Catherine,

Happy to get the right wiring set-up for your 2021 Jeep Grand Cherokee.

Since you need a 7 way on the back, you will need to start by installing the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C62VR, this is going to get a 4 flat on the back. Then you will need to build on top of that by installing the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires # ETBC7. The # ETBC7 is a little more work to install as you will need to run a power line from your battery with a couple of amps along the way, you will also need to run a brake wire from the front the rear as well. I attached some install videos for you to take a look at top see what it all entails.

Since you are needing to add a 7 way, you are probably going to need a brake controller as well to operate the electric brakes on your Gulf Stream. I really like the Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional # RED52VR, I like that the knob is on the dash for easy adjusting or hitting that manual override in those emergency situations. If you have an empty spot on the dash, you can use the # 331-TPSI-001 to install the knob.

Is this your first camper you will be towing, or just getting a different car set-up to tow it?

expert reply by: Kate F

0

ETBC7 Wiring Diagram
(click to enlarge)

Catherine

8/5/2025

It is the first camper we will be towing

Kate F.

8/5/2025

@Catherine Congrats on the new camper life! So many fun adventures in the near future! If you ever have any questions, just know that etrailer is here for you.

Answer 1

Hi Adam, We can get your 2019 Jeep Grand Cherokee set up with a 7-way, though the right parts are going to depend on if you have the factory tow package or not. If you do, all you need is the Curt T-Connector Vehicle Wiring Harness for Factory Tow…

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Answer 2

Hey Rob, for your 2021 Jeep Grand Cherokee I would recommend the Prodigy P3 part #TK28ER which comes with a custom fit harness designed for your Grand Cherokee. The P3 is the nicest controller around due to how easy it is to use and setup and how…

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Answer 3

For setting up your 2021 Jeep Grand Cherokee (without factory tow package) for wiring, you will first need a 4-way harness. For a 4-way that is compatible with your vehicle, I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat…

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Answer 4

The factory brake controller connector on your 2021 Jeep Grand Cherokee is located under the dash behind the hood latch, as shown in the provided photo. Keep in mind, the connector will only be there if the vehicle has the factory tow package which…

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Answer 5

Thanks for your question, Wayne! There are a few great ways you could set up a backup/observation camera on your Shasta. Since it’s a pull behind, I’d recommend going with a wireless option. Option 1: Brandmotion with HitchVUE Part #BM36TR – This…

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Answer 6

I would be happy to help you install the Redarc Tow Pro Liberty item #RED24FR in your 2021 Jeep Grand Cherokee. If your Grand Cherokee has the factory 7-way, your Jeep will be prewired for a brake controller. You'll need the item #TK93VR wiring…

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Answer 7

Hey Zack, we have great hitch solutions for your 2021 Dodge Durango but the Draw Tite hitch you referenced has been discontinued as Draw Tite is no longer around. So instead a hitch like the etrailer part #e98901 will be a great option. It's not…

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Answer 8

Hey Eric. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package item #C44FR fits the following vehicles: 2025 - 2026 Chevrolet Equinox 2025 - 2026 Chevrolet Equinox excluding Diesel 2025 - 2026 Chevrolet Equinox with factory Tow Package…

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Answer 9

Since your 2019 Jeep Grand Cherokee isn't equipped with the factory US Car connector under the bumper then your best option for adding the needed 4-Way harness is with the Tekonsha T-One #118727. This is still a custom harness that installs by…

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Answer 10

Great questions I am glad you asked them. I have solutions for them. You will need the Demco SBS Second Vehicle Kit for Air Force One Supplemental Braking System #SM99209 and the Demco SBS Air Force One Coiled Air Jumper Kit for 2019 to Present…

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Answer 11

Hey Aaron, it sounds like you are looking for an awning rail, is that correct? For that we have the P and F awning rail part #PF88FR which is compatible with the Solera awnings.

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Answer 12

Yes, for your 2020 Jeep Grand Cherokee that isn't equipped with the factory tow package, the Tekonsha T-One Vehicle Wiring Harness #118727 will work perfectly. This custom harness is going to plug into existing ports behind the tail lights and…

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What Wiring do I need to Put a 7 Way on the Back of My 2021 Jeep Grand Cherokee?

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