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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 # 3040-S
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3040-S - Vehicle Specific Tekonsha Accessories and Parts
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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 port beneath your vehicle's dash. Call 800-298-1624 to order Tekonsha accessories and parts part number 3040-S or order online at etrailer.com. 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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Tekonsha Accessories and Parts - 3040-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 port beneath your vehicle's dash.


Features:

  • 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 5-pin connector on your vehicle's built-in brake control wiring harness. The harness is located underneath the dash, to the left of the steering column, taped to another harness near the emergency brake pedal.


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.



3040-S Tekonsha Brake Control Pigtail Wiring Adapter - Single Plug - Toyota

Replaces Tow Ready 20265



This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota - 3040-S

Average Customer Rating:  4.9 out of 5 stars   (53 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 port beneath your vehicle's dash.

- 3040-S
by:

I wanted to follow up and thank you for your help! I was able to install the Redarc brake controller with no problem! Thanks for your assistance and recommendations. One note...There are not a lot of late model Land Cruisers on the road. Toyota only sells about 3-4,000 a year so finding videos and guides for installation is a bit of a challenge. I found some FAQ's on etrailer.com but the information seemed inaccurate or at least not very helpful. I know the LC comes with a two package and is prewired but it takes some doing to locate it. I remember directions and I found some install help on another site and that helped. In any event, I appreciate your help. I have attached a photo of the installed Redarc!



- 3040-S
by:

Great product, had it in the truck for almost a year now. Plug and play, with no splicing into the Tundra harness. As shown in photo, a bit of careful drilling and dremelling, I used one of the blank switch locations to locate the controller knob and be able to show the indicator light.



- 3040-S
by:

My dealings with etrailer have been a very positive experience. It started with a direct conversation with one of etrailer's sales reps over the phone. He was knowledgeable and respectful. I ordered the product per his recommendation. When the product arrived, I was able to simply plug it into the existing wire harness in my 2003 4x4 Tundra. I followed the instructions on how to install the unit and adjust it to the proper settings without a problem. I have an Iron Bull 5'x10' dump trailer I use all the time and the bake control I purchased from etrailer has actually exceeded my expectations. I'm up and down the Feather River Canyon weekly and I can easily adjust the control unit using the thumb wheel to address the different load weights I happen to be pulling. For the record I so appreciate the fact etrailer allowed me to actually use the product for a year before asking for my feedback. That's how it should be if the seller (provider) wants valid and reliable feedback. Great job etrailer.



- 3040-S
by:

A must-have if you're installing a brake controller in an older Toyota 4Runner. Makes the job a breeze! And etrailer makes buying it a breeze, as well. Great customer service makes a great shopping experience!



- 3040-S
by:

Did not include the adapter for the Redarc controller so required ordering that after delivery. Harness fit the Tundra but was really a generic Toyota harness. Slight disappointment but still made for a clean installation.



- 3040-S
by:

Yes, it's just a wiring harness, but this one is built exceptionally well and is easy to crimp onto thanks to the fact that the wires at the end have already been stripped.



- 3040-S
by:

We use our Redarc tow pro setup every time we take our offroad trailer camping. The trailer is not heavy but when we are offroad and navigating technical trails it is so nice to have a little more control of the trailer and how it handles. Having the dial makes it so easy to adjust as we are traversing a trail and the 3 axis controller always performs properly even on off camber situations



- 3040-S
by:

Worked perfectly. Makes install of brake controllers so much easier.



- 3040-S
by:
2010 Toyota Tundra

Exactly what I needed to connect the brake controller to my pre-wired 2010 Tundra.



- 3040-S
by:
Toyota Tundra

Product arrived on time. Made the installation on my ‘14 Tundra 1794 super easy. Crimped the connectors, installed the Red Arc Tow Pro Elite on the left side by the e-brake pedal. Mounted the dial on the same side under my truck be light switch. Very simple installation thanks to this harness.



- 3040-S
by:
2012 Toyota Tacoma

Just finished the install of the Redarc Tow pro elite controller in my 2012 Toyota Tacoma.



- 3040-S
by:

Product made installation of brake controller very clean. Nice quality and nice fit.



- 3040-S
by:

One of the few brake controllers that allows you to "remote mount" the control unit. Allows for a super clean install that looks like its from the factory rather than having to bolt an obnoxious brick somewhere on your dash only to smash your knee into it anytime you get in your truck. And the actual brake control woks great too! The user interface/control knob is easy to use and provides a simple way making adjustments to the controller. I'm able to easily test the trailer brakes with the push of a button and set the brakes how I want them to function. Installed on a 2012 toyota tacoma.



- 3040-S
by:
2011 Toyota Tacoma

Perfect fit for my 2011 Tacoma.



- 3040-S
by:
2012 Toyota Tundra

I had great anticipation for the delivery and going over the install instructions it was simple install. My biggest worry was trying to make it look clean, 2012 tundra already had tow package so I purchased the specific wire pigtail, so after removing lower dash removing pop out in dash- thanks Toyota- a little work with a Dremel tool for the redarc brake controller in dash install looks EXCELLENT, total install time for me was about 2 hours



- 3040-S
by:

Made instillation a snap!



- 3040-S
by:

I ordered these items online with the help of etrailer.com tech support and got the right parts the first time for my mechanic to install on a 2003 Sequoia Limited 2WD. Item 3040-S was installed in conjunction with the Tekonsha Prodigy P3 trailer brake and worked perfectly, and out of the way. With the included bracket i’m able to disconnect and remove the controller from the hot vehicle.



- 3040-S
by:

Rec'd both items ordered. Will call my auto shop on Monday to get installation appt. Thank you for your prompt service.



- 3040-S
by:

Fit great, had some difficulty finding the mating plug.



- 3040-S
by:
Toyota Tundra

If you have a Tundra and need to install a brake controller this is a must. It plugs directly into your factory plug underneath the kick panel so you don’t have to run any wires to the rear of the truck



- 3040-S
by:

Made install super easy!



- 3040-S
by:
2014 Toyota Tacoma

Fit was perfect for my 2014 Tacoma.



- 3040-S
by:

Top notch customer service!



- 3040-S
by:

I should have ordered the custom harness when I ordered the electric brake. It is a quality made product and it made for a super simple installation.



- 3040-S
by:
2007 Toyota Sequoia

John was great with a quick reply and all relevant information provided. Item is as described, shipped fast and well packaged. Have not installed yet but is exactly what I was looking form.


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Show More Reviews

Ask the Experts about this Tekonsha Accessories and Parts

  • Availability Of Wiring Adapter To Install Redarc Tow Pro Elite V3 In 2020 Toyota Land Cruiser
    As long as your 2020 Toyota Land Cruiser VX VDJ200 has a factory 7-way connector you will be able to use the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers # 3040-S which will plug into the factory trailer brake connector under your vehicles dash. You will then use the included butt connectors to connect the wires color to color with the wires of the harness included with the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR you were looking at. If your Land Cruiser...
    view full answer...
  • Recommended Trailer Brake Wiring Adapter For 2010 Toyota Tundra
    To install your Redarc Liberty trailer brake controller in your 2010 Toyota Tundra 4x4 you will need the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota # 3040-S as long as you have the factory 7-way connector or factory 4-way connector. If you have the factory 4-way connector you will need to add a 7-way connector using the # 37185. If your Tundra does not have the factory tow package wiring you will need to first add a 4-way connector using the #...
    view full answer...
  • What Brake Controller Pigtail do I Need for my 2015 Toyota Tacoma and my RedArc Brake Controller
    The Tekonsha Custom Wiring Adapter for Trailer Brake Controllers part # 3040-S is what you are looking for. This will plug into your factory port and allow you to wire your controller to the pigtail eliminating any need to alter or modify your factory wiring.
    view full answer...
  • Explaining Functions of Wires on 2021 Toyota Sequoia Factory Brake Controller Harness
    I can't say that I've ever seen a brake controller that needed a connection to the headlights, which is what the green/white wire appears to be the connection for. This connection wouldn't need to be made for a brake controller, and if you check out the product description it does mention that the # 3040-S is designed to plug into a 5 pin harness like the one you're referring to.
    view full answer...
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  • Which Tekonsha Brake Controller Install Adapter Fits 2018 Toyota 4Runner
    The adapter you need is actually the part # 3041-P which is correct for your 2018 Toyota 4Runner. You'd have to cut off the black connector and then splice the colors of it to the wiring of your brake controller.
    view full answer...
  • Is Install Harness 3040-S Correct for 2007 Toyota Tundra
    The part # 3040-S install harness is correct for your 2007 Toyota Tundra and the harness you found on your truck is correct for the brake controller wiring. Sometimes these connections are difficult to make. You might check to make sure all of the pins are straight and not bent and also that the female connectors on the opposite side are also aligned properly.
    view full answer...
    Image 1 for
  • Compatibility of Tuson DirecLink Brake Controller # 335DL-100 with 2006 Toyota Tacoma
    I spoke with my contact at Tuson regarding the DirecLink Base Model Trailer Brake Controller # 335DL-100 and your 2006 Toyota Tacoma. The potential issue with regards to fitment for this controller on trucks prior to 2008 is that not all of them are equipped with the factory 16-pin OBD-II port under the dash that this hooks up to. Many previous model year trucks do have this port but many do not, making it difficult to confirm fitment accross the board which is why Tuson lists compatibility...
    view full answer...
  • What Is The Difference Between Redarc # 331-EBRH-ACCV2 and Redarc # RED44FR Brake Controllers?
    Your Lexus has a port located under the dash on the drivers side for the Tekonsha # 3040-S pigtail to plug into. The the loose wires on the other end of the pigtail connect with the wires coming out of the back of the brake controller. I have attached a link and video about this pigtail. Regardless of which brake controller you get, you will need this pigtail. Redarc 331-EBRH-ACCV2 was Version 2 of the Redarc Tow Pro Elite (No Longer Available) Redarc # RED44FR is Version 3 of the...
    view full answer...
  • Parts Needed to Install Redarc Tow Pro Elite in 2013 Toyota Tacoma
    All you need to install the Redarc Tow Pro Elite # RED44FR in your 2013 Toyota Tacoma is the part # 3040-S that referenced. This plugs right into the connector you have now and does not require you to match colors. The reason your brake controller wiring has more wires ran to it than what the harness has is that there is an illumination circuit ran to your connector that in old school controllers used to be what would light up the displays when the headlights came on. But the Redarc...
    view full answer...
  • Best Brake Controller for 2013 Toyota Tundra with Factory Tow Package
    Since you will be pulling your trailer full time with your 2013 Toyota Tundra you are definitely going to want something that is effective, easy-to-use and doesn't take up space in your truck's cab. The perfect brake controller for you and the one I strongly recommend is the Redarc Tow-Pro Elite Trailer Brake Controller # 331-EBRH-ACCV2 because it meets all of the aforementioned criteria. To install this controller in your '13 Tundra you will need Custom Wiring Adapter # 3040-S; if...
    view full answer...
    Image 1 for Image 2 for
  • Which Install Harness Fits 2017 Lexus LX 570 for Redarc Tow Pro Elite Brake Controller
    Since your 2017 Lexus LX 570 has a factory 7-way all you need to install the Redarc Tow Pro Elite part # 331-EBRH-ACCV2 that you referenced is the correct install harness part # 3040-S and you'd be set! The mounting panel part # 331-TPSI-001 would also work great too.
    view full answer...
  • Redarc Liberty Install on 2014 Toyota Tundra With Factory 7-Way
    Assuming that your 2014 Toyota Tundra has the factory 7-way trailer connector, in addition to the # RED24FR Redarc Tow-Pro Liberty, you'll also need the # RED69FR pigtail and the # 3040-S wiring adapter. The adapter and the pigtail would wire together color for color, and the # 3040-S would plug into the factory brake controller connector under the dash. The connector is located just above the driver's side kick panel as shown in the provided photo. You might also be interested in the...
    view full answer...
    Image 1 for
  • Parts Needed to Install Redarc Tow Pro Liberty in 2012 Toyota Tacoma with 7-Way
    To install the Redarc Tow Pro Liberty part # RED24FR all you need is the install harness part # 3040-S and the part # RED69FR for your 2012 Toyota Tacoma with the factory 7-way. The part # 3040-S plugs into the brake controller port on your truck which splices color for color to the # RED69FR which then plugs into the Liberty.
    view full answer...
  • Brake Controller Recommendations for a 2007 Toyota Tacoma
    If you're looking to do a simple upgrade to your original Prodigy brake controller then I recommend using the Prodigy P2 # 90885 or P3 # 90195. These are both just more recent models of what you have and the P3 is the only controller that I know of which uses an LCD screen to make it easier to adjust settings and troubleshoot (when the need arises). To install either of these on your 2007 Toyota Tacoma it's going to be just a matter of unplugging the pigtail at the back of your Prodigy...
    view full answer...
  • Harness Needed To Install Redarc Tow-Pro Elite Trailer Brake Controller On a 2012 Toyota Tundra
    In order to install the Redarc Tow-Pro Elite Trailer Brake Controller part # RED44FR on a 2012 Toyota Tundra you'll need the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers part # 3040-S. The adapter will plug into the port on the vehicle but then you'll need to splice the other sets of wires together color for color. The Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob part # 331-TPSI-002 can then be used for a clean install.
    view full answer...
  • Redarc Brake Controller Harness For 2013 Toyota Tacoma
    With use for the 2013 Toyota Tacoma with tow package, it is recommended to use the Tekonsha Custom Wiring Adapter for Toyota Part # 3040-S, wired to the Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers Part # RED69FR. With these two wired together, this will give you the plug and play installation you are looking for when using the Redarc Tow-Pro Liberty Part # RED24FR.
    view full answer...
  • What do I Need to Install a Brake Controller on My 2016 Lexus LX 570?
    If your 2016 Lexus LX 570 already has a 7-way you will only need a Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR and the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers # 3040-S. If you do not already have a 7-way the Universal Installation Kit for Trailer Brake Controller # ETBC7 will have everything you need to be able to install the Brake Controller # RED44FR. I recommend the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 as it has a customizable LCD...
    view full answer...
  • Trailer Brake Controller for a 2018 Lexus GX 460
    We have several brake controllers to use with your 2018 Lexus GX 460. I recommend the Tekonsha Primus IQ, part # TK90160. This hooks up to your brake controller harness using the custom wiring adapter, part # 3040-P. Without knowing what kind of dash plate you have or it's dimensions, I cannot say if this controller will fit with it. I've linked to a video installation of this controller so you can see if it can install the way you want it. If you don't have the prep package for your...
    view full answer...
  • What is Difference Between Redarc Tow Pro Elite and Tow-Pro Liberty
    The Redarc Tow-Pro Liberty # RED24FR is the way to go over the Elite # 331-EBRH-ACCV2 as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed whereas the Liberty gives you just the proportional setting which is what you'd want to use with your towing setup. Proportional controllers sense how hard you are applying the vehicle brakes whereas time delayed means it puts a preset...
    view full answer...
  • Recommended Red Arc Tow-Pro Elite for 2008 Toyota Land Cruiser
    The Redarc Tow-Pro Elite Trailer Brake Controller - 1 to 3 Axles - Proportional # 331-EBRH-ACCV2 doesn't disclose their hardware/software upgrades. They simply have the Tow-Pro Elite as an upgrade from the Tow-Pro Classic. It comes with the manufacturers most recent upgrades as this braking system is their most recent option and it is my personal favorite out of everything we carry. It has adjustability that others do not, has a clean look, LED codes, and many mounting location options....
    view full answer...
  • Brake Controller and Wiring Adapter for 2013 Toyota Tundra
    Since you already have the factory wiring harness, you do not need the Tekonsha Custom Wiring adapter # 3040-S for your 2013 Toyota Tundra. The factory harness functions should be labeled, you cannot go by wire color since there is no standard for wire coloring. From what I have found, the factory harness has an additional green wire you will not need that may be taped off. I recommend the Redarc Tow-Pro Liberty Brake Controller # RED24FR over the # RED44FR unless you need the time-delayed...
    view full answer...
  • Wiring Adapter to Install Redarc 331-EBRH-ACCV2 Tow Pro Elite Brake Controller in 2017 Lexus GX460
    To install the Redarc # 331-EBRH-ACCV2 Tow Pro Elite in your 2016 Lexus GX460, you'd need the # 3040-S brake controller wiring pigtail. The 3040-S would wire up color for color to the universal pigtail provided with the brake controller. You are absolutely correct, the factory brake controller connector is located right next to the e-brake. For those that don't care to have the typical brake controller box installed on the underside of the dashboard, the Tow Pro Elite is definitely the...
    view full answer...
  • Harness for Tow Pro Elite To Install in 2007 Toyota Tundra
    Yes to install the Redarc Tow Pro Elite part # RED44FR in your 2007 Toyota Tundra all you need is the install harness part # 3040-S which you'd wire by color to the controller and then plug in under the dash.
    view full answer...
  • Control Knob Mounting Panel for Installing Redarc Brake Controller in 2013 Toyota Tundra
    They sure do! For your 2013 Toyota Tundra, you'll want to use part # 331-TPSI-002 which fits the 2008-Present (2020) Tundra models. the mounting panel or bezel will fit the unused switch knockouts on the dash or on the console. I've linked to a product description video. To complete the installation of a Redarc Brake Controller like the Tow Pro Elite part # 331-EBRH-ACCV2, you'll also need the # 3040-S wiring harness.
    view full answer...
  • Parts Needed to Install Redarc Tow Pro Liberty in 2010 Toyota Tundra
    The Redarc Tow Pro Liberty part # RED24FR is a fit for your 2010 Toyota Tundra and would work great in your 2010 Toyota Tundra. You'd just need the install harness part # 3040-S and you'd be set.
    view full answer...
  • Recommended Brake Controller and Wiring Harness for 2012 Toyota Tundra Console
    The Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Toyota and Lexus # 3040-P is a great option for Tekonsha brake controller wiring in the traditional location. However, because you desire the controller to be a part of your console, there are better options available for that fit. I recommend the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Pigtail - Toyota # 3040-S along with the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR which will...
    view full answer...
    Image 1 for
  • Trailer Hitch and Trailer Wiring for 2017 Lexus GX460
    From your photo, it looks like you already have a 4-pole/7-way trailer trailer connector on your Lexus GX-460 that's identical to the # HM40975 we offer. This means that if you're towing a trailer that does not have electric brakes, you're good to go once the # C13043 hitch is installed. If the trailer does have electric brakes, you'll need to install a brake controller if you'd like them to actuate. I'd recommend the Redarc Tow Pro Liberty, part # RED24FR. You'll also need the #...
    view full answer...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
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Employee Cole B
Installed by:
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Employee Alexander C
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