7-Way and Brake Controller Installation on 2018 Jeep Grand Cherokee without Factory Wiring

Question

Question:

There is no trailer wiring at all on our Grand Cherokee. We need a 7-way setup and to be able to connect our trusty Prodigy from our last vehicle.

asked by: Marcia

0

Expert Reply:

On your 2018 Grand Cherokee without factory wiring you can install a 7-way setup and re-install your Prodigy brake controller, the P2 # 90885 or the P3 # 90195, using just two kits. You'll start with 4-pole kit # 118727 and then simply add # ETBC7 to complete the wiring and controller install.

I linked two videos to show you the whole process for installing each kit as well as a photo of a 7-way to show how the various circuits are arranged. Wire colors can vary between different vehicle models but the overall process will be as shown.

expert reply by: Adam R

0

click to enlarge

Answer 1

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

view full answer...

Answer 2

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

view full answer...

Answer 3

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

view full answer...

Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...

Answer 5

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

view full answer...

Answer 6

By all accounts the Curt Spectrum Trailer Brake Controller #C51170 works well and is easy to use and install on most vehicles. It is a brand new item so not a lot of feedback has come in on it. I did learn a few things though after speaking with our…

view full answer...

Answer 7

To add a hitch to your 2024 Jeep Grand Cherokee L, I recommend the Draw-Tite item #DT42GR. This hitch is custom fit and bolts to your Jeep with included hardware. This is a class III hitch with a 2" receiver. It has a 7,500 lbs towing capacity…

view full answer...

Answer 8

I attached a picture that shows how much of the etrailer.com hitch part #E98901 would hang below the rear bumper when installed.

view full answer...

Answer 9

If you want to install the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" #C13182 on your 2016 Jeep Grand Cherokee, you will use M14 bolts that are grade 5 as well as compatible flat washers. That is the replacement for what is…

view full answer...

Answer 10

For your 2020 Jeep Grand Cherokee I recommend the Tekonsha T-One Vehicle Wiring Harness part #118727. It's custom made for your Jeep and it gives you a 4 way flat trailer connector so you have all the lights to tow a trailer safely and legally.…

view full answer...

Answer 11

Between the Curt Echo #C51180 and Redarc Tow Pro Elite #RED44FR for your 2019 Nissan Titan I recommend the Redarc as it is a one time install, and very out of the way unlike traditional trailer brake controllers. To install the #RED44FR in your Titan…

view full answer...

Answer 12

We can get your 2019 Jeep Grand Cherokee set up with the Hidden Hitch and 4-way trailer wiring. Just keep in mind the correct 4-way will depend on if your Grand Cherokee has the factory tow package or not; I'll go ahead and list out what you need…

view full answer...