To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Install your electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in port beneath your vehicle's dash.
Features:
To install your electric brake controller, you need to connect the wiring of the controller to your vehicle. Certain auto manufacturers offer pre-wired options, typically known as tow packages, wherein wiring is run for you from the dash to the trailer connector on the back of your vehicle. When this is done, a port is installed at your dash so that you can easily plug in a brake controller.
This adapter plugs into the connector behind your vehicle's dashboard. The exact location of the plug may vary depending on your year, make, and model of truck.
No hardwiring is required to install this adapter. After you plug it into the factory port, you simply plug the other end of the adapter directly into your electric trailer brake controller. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.
California residents: click here
Average Customer Rating: 4.9 out of 5 stars (379 Customer Reviews)
Install your electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in port beneath your vehicle's dash.
Get this cable for a simple, plug-in installation. You’ll spend more time hunting for the junction already wired into the truck harness than installing your brake controller. And after installed, no worries on loosening wire connections or electrical tape wrap unraveling.
The wiring adapter made the project so easy ! Install was a breeze.
Day after I ordered this part I was contacted by the company to say that the part wouldn't be shipped for several weeks and they worked to get me a replacement solution. This ultimately did not work out but their customer care was something that has become a rare thing these days. I think the sales agent whose name I do not recall at the moment and a few days later got a notice that the original part I ordered was out for delivery. It arrived today I installed it in my vehicle and everything works perfectly. I would definitely do business with etrailer again for my RV needs. Thank you guys.
My Tekonsha P2 & wiring kit 3031-P for my 2017 Tundra Crew Cab arrived timely and installation was SUPER EASY. Connected my 27 foot trailer the same day to test it. Works awesome. Disappointed in Toyota for having a poor Brake Control System, but thankful Tekonsha was able to pick up the slack.
Wiring harness 3031-P on a 2015 Toyota Tundra, doesn't get any easier. I have cut and spliced several brake controller over the years. This is a lot cleaner and very easy.
Arrived on time. Worked as advertised. Competitive pricing
The wiring harness is exactly what most folks need for an under dash or dash mount. I found that it was more convenient to access the brake controller emergency handle and see the brake controller if I took your metal mounting bracket and turned it upside down and mounted the controller on the left hand side of the steering wheel on top of the dash with a magnet taped to the dash. This allow me to remove the controller and move it between my Tacoma and Ford F150 easily. But in order to do this you need a longer wiring adapter, so you either cut the original wiring harness and splice in longer wires or buy two harnesses and cut off one end of each and splice that together. Very happy with both the harnesses and the Tekonsha P3 brake controller.
I used this to connect a brake controller, ITEM TK63VR, to the brake harness under the dashboard of my husband's 2022 Toyota Tacoma SR5. It worked excellently and was very easy to do because the ends just snap right into the harness and the little ground wire fits right under the grounding screw. eTrailer's instruction videos are great, thats why this ol' grammy was able to do it herself! Thank you etrailer! PS I just wish that it was a foot longer.
The cable fits the desired application on my 2018 Tacoma. A couple of inches longer would have been nice - it was barely long enough for where I mounted the controller. The location shown in the pic was the only location that didn't get in the way of of knees, feet or air bags. By the way, the other item in the cubby is my ham radio faceplate.
Everything came in the package and the product came earlier than I expected. Installing it was fairly easy. However the only thing that proved difficult was Torquing the ball down on the hitch head which luckily [RV dealer] was good enough to do that for me. I am happy With the product and looking forward to using it.
Easy installation. This unit is the best controller I have ever had. I utilized my existing inset compartment and just cut off the back of the compartment til I had about 2” remaining from the front flange to minimize the amount of space around the P3 controller when installed to have a better appearance.
to be honest I bought this harness to modify it. I needed the plug that goes into the OEM port on the truck so I would not have to T Tap power to run accessories I simply would tie in my switches to this port to use for what I want. I still have not completed the install.
Alex
12/21/2021
great up and running and was able to fit this in without hacking up my OEM harness.
I bought this harness for my Toyota Tacoma 2018 because I installed breack controller Primius IQ and fit very Good. I’m so glad with the product, and etrailer is really fast to delivery.
Great product. Used with Tekonsha Prodigy P3. Installed on a 2017 Tacoma to tow our 2020 T@B 400 teardrop camper.
Slm-c
5/2/2022
Excellent! Needed this to install my Tekonsha P3.
Installed my old Tekonsha P2 controller easily in the new truck in about an hour. Wire was just long enough to reach the preferred spot. Fantastic service as usual.
Installation facile
Et le site internet tres bien fait
C'est mon 2e achat toujours un bon service
Bravo
We love our Tekonsha brake controller. Works great on our 2018 Tacoma while pulling our 1025r John Deere subcompact tractor.
Delivered ahead of time and product is as expected.
Kenneth
1/8/2024
Perfect
Fit perfectly. did not have to cut into vehicle wiring harness and super quick install
Quick and simple, plug and play. No fuss or worries about it being wrong if ordered from another online retailer.
Wiring adapter fit great ! Eventually bought a bigger truck which had a built in brake controller and no longer need the wiring adapter.
Easy to install in our 2019 Toyota Tacoma and works great when towing our trailer!
Allison
12/10/2021
Works great!! Very happy with purchase and ease of installing!
I bought this adapter to prove that my factory brake controller was not functioning properly. I am now using my old Prodigy P2 controller I was using on my previous truck n trailer, bypassed the factory unit on my current truck. Needless to say, it worked perfectly. My factory controller would not engage the travel trailer brakes no matter how I adjusted it. The P2 works with electric and electro over hydraulic brake systems. My truck has a button to select. My problem is in electric mode. If I switched to elec over hyd, the brakes lock up. I am going to the dealer to have him check the factory control and hear what they have to say.
Joe D.
3/19/2020
This adapter cable made it real easy to hookup the P2.Working great, been on a few trips after I got it. All good.I still have to follow up with Toyota about the stock controller.
Made the install that much easier, take your time pulling off the side cover to get to the wiring harness. Seems like the bottom front plug gave me the most trouble but love how much difference trailer brakes while pulling a heavy load make.
Great, specifically for my truck and it plugged right in and worked without modification. Could not ask for better
Gerald
8/2/2022
Works fantastic, no problems, brakes the trailer with proper amount related to truck braking.
Do you have a question about this Accessories and Part?
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Wayne
8/1/2022
Working great! No problems at all.