Parts Needed to Install Tow Package on 2015 Jeep Grand Cherokee

Updated 01/12/2026 | Published 01/02/2026

Products Featured in This Question

Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"

(846)

$171.16

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(290)

$82.59

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3448)

$124.07

Question:

On a 2015 jeep grand cherokee limited with a 3.6 v6 that does does not have a tow package can one be installed with a hitch wiring harness plug and play 7 way /4 blade combo the hitch also and do i need a trailer brake control and if so how does one connect them also the main thing do you have all these items please and ty on this matter jimmy

asked by: Jimmy

Expert Reply:

Hey Jimmy, we can certainly help with installing a tow package that includes a hitch and a 4-way/7-way on your 2015 Jeep Grand Cherokee. Lets start with a hitch. For that I would recommend the Draw Tite part # 75699 as it's mostly hidden and it has a mounting bracket for trailer wiring built into it.

Then for wiring you would need to start with a 4-way which we have with the Curt # C62VR. This plugs inline with the taillight connectors of your vehicle and is as close to plug and play as available for your vehicle. To convert it then to a 7-way what you would want is the part # 37185 for if you don't have trailer brakes or the # ETBC7 for if you do with a brake controller like the P3 part # 90195. Not every trailer with a 7-way has brakes though so you should check to determine what route to go with. Let me know either way and I'll make sure we get everything.

expert reply by: Jameson C

Jimmy

1/6/2026

Hey, Jamison, thank you for getting back to me.My daughter actually got the vehicle today and I just got out from underneath it.It does have a 7 plug underneath.It's one that you guys showing your video that you pull a little cap out of it, and then you plug something into it.What can I use with that, please?And thank you

Jameson C.

1/6/2026

@Jimmy Awesome, that means she has the USCAR type harness already and a standard 7-way like the part # C42JR which will plug right into it and also give you a 4-way connector.

James

1/7/2026

@JamesonC Hey Jameson, would it be 57 6 72? Because I have to wire in for a rate controller, it's just a wire with a plug in where I would have to plug in that item number into that and I guess run wires back to the engine compartment and The brake controller please and thank you

Jameson C.

1/7/2026

@James the Curt # C57672 would be what you'd want if you had a 4-way currently and wanted to convert it to a 7-way and then wire in a brake controller. Is that for sure what you have or do you have something different?

See All (5) Replies to Jimmy ∨

Jimmy

1/6/2026

Hey jamison , while looking at your videos would see fifty 76 seventy two work with the set up that I have on the back of the vehicle , then what I would need to go from the black wire in the blue wire up to a rate controller , please , and thank you

Jameson C.

1/6/2026

@Jimmy Is that a part number you voice texted? I am not for sure what you are referring to.

James

1/11/2026

@JamesonC Hello, Jamison, I'm gonna start from the very beginning that way.We can start fresh on her two thousand fifteen jeep grand cherokee , limited back of the vehicle underneath there is a wiring homes that if I pull the plug out of it, it has 7 pins in it, so I need an adapter wiring on us that can plug into that that will be out the back for a 7 way and a 4 pig tail but also need something to go from that all the way up front in the engine compartment. And inside the cab of the vehicle To wire in the p3 brake controller please and ty if any questions please feel free to contact me directly if that is better 401 480 7128

Jameson C.

1/12/2026

@James The part # C42JR will convert the 7 pin harness you have to a 7-way and 4-way and then to wire in a brake controller like the P3 part # 90195 you'd need the brake controller install kit part # 5506 since the vehicle does not have factory brake controller wiring.