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Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota

Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota

Item # 3031-S
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3031-S - Wiring Adapter Tekonsha Trailer Brake Controller
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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. 1-636-306-4830 to order Tekonsha accessories and parts part number 3031-S or order online at Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota. Accessories and Parts reviews from real customers.
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  • Reviews (28)
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Tekonsha Accessories and Parts - 3031-S

  • Trailer Brake Controller
  • Wiring Adapter
  • Wired to Brake Controller
  • Tekonsha
  • Vehicle Specific

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.


  • Pigtail wiring adapter eases installation of your electric trailer brake controller
  • Connector end plugs into the built-in port beneath the dash of your vehicle
  • Wire end connects to the wires on your brake controller with the included butt connectors
    • Compatible with time-delayed and proportional brake controllers from TrailerMate, Draw-Tite, and Tekonsha
  • Limited 1-year warranty

Installation of Tekonsha Brake Controller Adapter

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.

3031-S Tekonsha Brake Control Pigtail Wiring Adapter - Single Plug - Toyota

Replaces Tekonsha 3017-S

This Product Fits The Following Vehicles

California residents: click here

Customer Reviews

Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota - 3031-S

Average Customer Rating:  5.0 out of 5 stars   (28 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!

Toyota Tacoma

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.

2018 Toyota Tacoma

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.


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!

2020 Toyota Tacoma

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.


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.


Work as advertised


Product works as described, no issues with instructions and issues with the product.

working as expected for 1 yr.
Mike M - 04/21/2021


Plug and Play. That's the way to insta ll

2018 Toyota Tacoma

Did not fit 2018 Tacoma OEM port. Toyota changes the layout often so had to customize an open port for the Red Arc controller.


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.

2020 Toyota Tacoma

Easy, accurate and heavy duty brake controller connector.


Easy to install, great service!!


Great! Easy to install and works exactly as described.


Worked great. Etrailer staff are always helpful!!

2020 Toyota Tacoma

This allowed the cleanest install for a brake controller that I found. Easy to install.

2020 Toyota Tacoma

Just what I need for my 2020 Toyota Tac oma.


Plugged right in, no issue with connecting the wiring to my truck


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!


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Alexander C
Written by:
Alexander C

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