Save Up to 50% - Summer's Hottest Deals are Here!
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Streamline the installation of your trailer brake controller with this custom adapter. Simply connect the wires of the harness to your brake controller and then plug the other end into the built-in harness behind 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.
To hook this adapter up to your trailer brake controller, just connect the 4 wires of the harness - ground, power, brake switch, and brake power - to the corresponding wires on the brake controller. If your brake controller came with a plug built into its wiring harness, you will have to cut off the plug and connect to the wires themselves.
California residents: click here
Average Customer Rating: 5.0 out of 5 stars (29 Customer Reviews)
Streamline the installation of your trailer brake controller with this custom adapter. Simply connect the wires of the harness to your brake controller and then plug the other end into the built-in harness behind your vehicle's dash.Tekonsha 3031-S wiring harness adapter used for 2020 Toyota Tacoma (with tow pkg)
Vehicle specific wiring harness that plugs into factory installed connection behind kick panel on driver’s side. Color coded wires match the colored wires from your chosen brake controller purchase. Can use butt connectors and vinyl tape (or shrink tubing) to join this harness to your controller wires. Do not plug into vehicle until these wires have been properly connected and insulated to avoid shorting out. This product simplified the wiring procedure and avoids damage to electrical system. Vehicle’s factory connector shown in this review. Great product!
This adaptor fit my 2022 tacoma truck perfectly and works fine.
This plug and play wiring adaptor for my Tacoma worked perfectly with the Redarc Tow Pro Elite I installed. My 2020 Tacoma was pre-wired with a factory plug, and the Tekonsha wiring harness plugged right in. I wired the pigtails to the Tow Pro Elite and we were fully operational.
My Tacoma came with tow package but manufacturer doesn’t have an electric brake controller. I didn’t like the look of the after market ones until I checked etrailer. They carry The Redarc that tucks the controller under the dash with a nice looking, back lit , dial that fits in the dash with a factory finished look. Install was plug and play. Adding Roadmaster Helper springs really help to stabilize the Tacoma when towing my camp trailer, or when carrying loads in the bed of the truck.
Thanks etrailer.
Etrailer is the only place to go to for anything towing related. I always research comprehensively before I make a new purchase - etrailer makes it simple by providing product information through videos on its website. The representative was not only very knowledgeable of products she was able to get the to Redarc tow pro elite brake controller to me in just a few days. I will only order from etrailer and I let anyone I know in the market for their products how awesome they are!
This made wiring in my REDARC brake controller a breeze. My Toyota Tacoma already had its own harness and this made it simple to join the two together. Plenty of wire if you need it, I ended up trimming some.
Installed same day as I received it. Went in smoothly and am anxious to try it on our
next camping trip. We just purchased a 2018 Toyota Tacoma w/trailing package -- 4 pin/7 pin connector, engine cooler, power steering cooler, etc. However, we were not told that Toyota had not made the wiring harness for the brake controller for the Tacoma (just the Tundra). Thank goodness, etrailer and Tekonsha stay on top of the market. Thanks again.
This adapter plugged right in to my 2020 Tacoma’s existing OEM tow package connector, and I simply connected the red blue black and white wires to a RedArc brake controller.
Side note: The RedArc Elite V2 worked once and quit on me.
Called RedArc about a year later and they replaced it with the Version 3 under warranty.
Shipping was fast and affordable I purchased the switch mount and also the harness. After splicing the harness, installation was straightforward. The switch plate made for a professional appearance as well.
Everything came in quickly and installed relatively easily. I just wish there was a suggested mounting spot for the controller under the dash and a suggested ground spot for my particular vehicle also.
Product works as described, no issues with instructions and issues with the product.
Mike M - 04/21/2021Easy, accurate and heavy duty brake controller connector.
This allowed the cleanest install for a brake controller that I found. Easy to install.
Work as advertised
Worked great. Etrailer staff are always helpful!!
Did not fit 2018 Tacoma OEM port. Toyota changes the layout often so had to customize an open port for the Red Arc controller.
Plug and Play. That's the way to insta ll
Just what I need for my 2020 Toyota Tac oma.
Plugged right in, no issue with connecting the wiring to my truck
Easy to install, great service!!
Great! Easy to install and works exactly as described.
My order was delivered in a timely matter and shipping was free. Couldn't be happier. Thank you for the great customer service
Works perfectly.
Just what we needed, when we needed!
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.
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.