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Plug-and-Play Wiring Harness for Redarc Tow-Pro Classic, Elite, or Liberty Trailer Brake Controllers
Redarc

Plug-and-Play Wiring Harness for Redarc Tow-Pro Classic, Elite, or Liberty Trailer Brake Controllers

Part Number: RED49FR
In Stock
$31.00
Retail:$61.51
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Accessories and Parts

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Install your Redarc Tow-Pro electronic brake controller (sold separately) quickly and easily with this custom wiring adapter. Plug one end of the adapter into your Tow-Pro brake controller and plug the other end in beneath your vehicle's dash. 1-800-940-8924 to order Redarc accessories and parts part number RED49FR or order online at etrailer.com. Free expert support on all Redarc products. Great prices and Fastest Shipping for Plug-and-Play Wiring Harness for Redarc Tow-Pro Classic, Elite, or Liberty Trailer Brake Controllers. Accessories and Parts reviews from real customers.
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  • Reviews (303)
  • Q & A (0)
  • Videos (2)
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Redarc Accessories and Parts - RED49FR

  • Trailer Brake Controller
  • Wiring Adapter
  • Plugs into Brake Controller
  • Redarc
  • Vehicle Specific

Install your Redarc Tow-Pro electronic brake controller (sold separately) quickly and easily with this custom wiring adapter. Plug one end of the adapter into your Tow-Pro brake controller and plug the other end in beneath your vehicle's dash.


Features:

  • Wiring adapter eases installation of your Redarc Tow-Pro Classic, Elite, or Liberty electric brake controller
  • Custom connector end plugs into the port beneath your vehicle's dash
  • Other end plugs into your Tow-Pro electric brake controller
    • Some wire splicing required for Tow-Pro Classic
  • Made in the USA
  • 2-Year warranty


TPH-021 Redarc Wiring Harness for Tow Pro Electric Brake Controllers - Plug and Play



This Product Fits The Following Vehicles



California residents: click here


Video of Plug-and-Play Wiring Harness for Redarc Tow-Pro Classic, Elite, or Liberty Trailer Brake Controllers

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Redarc Tow-Pro Trailer Brake Controller Plug-and-Play Wiring Harness Review

Brad Hello neighbors. It's Brad here at etrailer. And today we're taking a look at the vehicle-specific wiring harness, that will work in conjunction with the Tow-Pro Elite electric trailer brake controller. These harnesses are going to be great to work with your Tow-Pro Elite in a variety of different trucks and SUVs. Now, make sure that you get your vehicle-specific harness. You're going to want to use our fit guide on "etrailer.com", and that's going to make sure that you get the right harness, and that way your install goes nice and easy.

Included in the REDARC kit, you will find this plugin adapter, and this is going to have these spliced ends, and you're gonna have to tie into your brake signal, your brake output, your power output and your ground. Now, if you are pretty handy with electrical, that's awesome. That's great. You can use this. But I'm the kind of person, plug and play in OEM kind of setup or really nice factory one like this.

This is the vehicle-specific harness. So this ties in directly to our factory tow system, and clips right in, it's got this nice braided sheathing on it, to kind of protect the wires, and then it plugs directly into our module here. So, to save yourself a little bit of headache and time, and make the install go that much smoother, and not have to worry about loose connections, I highly recommend getting the vehicle-specific harness. So this end of the plug is specific to your vehicle. As you can tell, it looks like the factory plug, it fits in perfect, has the locking mechanism, so you aren't gonna have to worry about loose connections happening with your plug, and it's going to make install a lot easier.

And that was a look at the vehicle-specific harness for the Tow-Pro Elite electric trailer brake controller..

Customer Satisfaction Score:

Ratings & Reviews

4.8

303 reviews
Install your Redarc Tow-Pro electronic brake controller (sold separately) quickly and easily with this custom wiring adapter. Plug one end of the adapter into your Tow-Pro brake controller and plug the other end in beneath your vehicle's dash.

by:

VERY happy with the ease of installation. I had an insert made on a 3D printer to mount the control where the factory brake would have mounted.

Victoria H. profile picture
Etrailer Expert

Victoria H.

1/21/2025

That's super neat and looks sleek too, Matthew! What are you hauling?

Matt L. profile picture

Matt L.

1/21/2025

@VictoriaH I haul a small dump trailer with either a mini excavator in it, or some type of fill, gravel, loam, etc.


by:
2013 Toyota Tundra

This worked perfectly in my 2013 Tundra Crew Max. The "how to" video showed me just what do do and how to do it. I've taken my 24 foot camper trailer on two separate trips (one where I was on the Tail of Dragon even), and the trailer breaks worked perfectly.



by:

This is my 3rd redarc. It’s a great product compared to a conventional brake controller hanging under the dash. The main downside to the redarc is the control knob. You can’t see the numbers very well to adjust it while driving, as they are not well lit. Otherwise, it works as expected



by:

Plug And play.



by:
Toyota 4Runner

This made installation a breeze in my 2023 4Runner. Well worth it!



by:

Super easy install for my 2018 4Runner



by:
2015 Toyota 4Runner

The name says it all, it truly was a plug and play experience installing the wiring harness. I realized after the harness arrived that my 4Runner came with a cable with one end ready to plug in and the other end ready for a connector. Although I could have saved a little money terminating it myself, I went with the premade Redarc harness and was done in minutes. I have no regrets, it was money well spent and I was on the road in no time. Highly recommended.



by:

All that I needed for the job.



by:
2019 Toyota 4Runner

Made the brake control install very sim ple.

Albert G. profile picture

Albert G.

6/11/2022

One Year Later

Still working like a factory option. Highly recommend for an easy brake controller installation,



by:

Perfect match to the vehicle making controller wiring a simple process.



by:

Works awesome. I purchased a separate knob panel insert which made the entire installation plug and play. Would buy again.



by:
Ford Edge

After a year of owning and pulling a camper it has been flawless. Easy install. I will say do your research on the best way to set it up for your vehicle. I drove on dirt roads around 5mph and adjusted it until I was right on the edge of skidding the trailer by pressing on the controller.



by:

Not safe to use, very poor quality product. May cause and accident due to not working properly with a brake controller. Do not buy it! It is not compatible with anything.



by:

It wasn't plug and play with the factory setup. Had to cut the harness and install my own wires and breakers.



by:

What can you say, "Plug-and-play" worked as it should.

John profile picture

John

3/27/2024

One Year Later

Still love it.



by:
Toyota 4Runner

Love that it is mostly plug and play. 4Runner is already wired for a brake controller and the cable I ordered made it simple to just plug it in. I didn’t get the custom switch blank for the 4 runner so I had to modify the existing one and that was a lot of work. Would order blank if doing again. Install was pretty easy. Haven’t towed a trailer yet so not sure how well it works. Looks like factory item after installed.



by:

This product fits perfectly to my truck’s tow package.



by:
2022 Toyota 4Runner

Watched the video that demonstrated how to install the Redarc brake controller in my 4Runner. SIMPLE with the plug and play harness I ordered through you folks. In spite of it being shipped from the states to Canada, it got here in a very acceptable time frame. I believe I'll do the install tomorrow. Thanks ... BRW



by:

Trailer brake easy to install....works great and accessory switch fits perfect...



by:

Very helpful and patient with my question. 1 year out and I’m very happy with my purchase!



by:

made install fast and easy hence the Plug and Play



by:

Our Redarc Proportional Brake Controller did not work with the generic harness that the local shop originally used. This harness that we then ordered from etrailer is specific to certain Toyota vehicles, in our case a 2020 4Runner. Having this specific harness made all the difference. After a 7000 mile cross country trip with our camper we can report that with this harness the Redarc controller worked flawlessly. Thanks to the folks at eTrailer for helping us get the correct part.



by:

Love that click sound. Perfect connection for my 2019 4runner.



by:

The Redark trailer brake controller installed easily. In my 2020 Toyota 4Runner. It looks like it came installed from the factory. It’s small and easy to reach when driving. It came with a plastic install panel. This is designed for installing in a hole that you drill in your dash. It will not fit in a knock out space in your dash. There is one that fits the dash perfectly that you can buy from etrailer.
etrailer automatically bundled the Redark trailer brake controller with the correct plug and play wiring harness for my vehicle. It was nice not to have to search for the wire harness. Everything installed perfectly. I didn’t have to splice a thing.
I haven’t tested the function of the brake controller yet. I’ll hook up to a trailer this week.
The items arrived in less than a week and the package was in good condition. The order tracking worked great. The tech videos on the etrailer website were really helpful. I’ll purchase from hem again.



by:

Toyota apparently thinks if you really want a brake controller in a 4Runner, you are going to have to work for it. The wiring harness was perfect once I found the Toyota connector plug.


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Show More Reviews

See what our Experts say about this Redarc Accessories and Parts

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  • Brake Controller Recommendation for 2005 Toyota Tundra SR5
    Hey Deanna, the brake controller I recommend for your 2005 Toyota Tundra is the Redarc Tow Pro Liberty part # RED24FR as it only puts a small knob on the dash of your truck and uses an inertia sensor to determine how hard you are hitting the brakes for applying the trailer brakes. To wire it to your truck all you need is the correct install harness which is part # RED49FR.
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  • Troubleshooting Fault Codes in a Redarc Tow Pro Liberty Installed in a 2022 Toyota 4Runner
    The easiest way to determine what could be causing the issue with your Redarc Tow-Pro Liberty Brake Controller # RED24FR, installed in your 2022 Toyota 4Runner using the Plug-and-Play Wiring Harness # RED49FR is to check the fault code chart in the installation instructions. There are a number of different fault codes that indicate the problem and solution. I have included pictures of the fault code chart here for quick reference. If you you need further help with this, please let me know...
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  • Recommended Trailer Brake Controller For a 2024 Toyota Tundra SR With Factory Tow Package
    I recommend going with the Redarc Tow-Pro Liberty Brake Controller # RED24FR for your 2024 Toyota Tundra. This will plug and play into your factory harness with the Adapter # RED49FR providing a clean and easy installation. I prefer the Redarc as it allows you to only have a small dash mounted control knob rather than the large box controller mounted near your legs.
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  • Recommended Redarc Plug In Brake Controller Adapter for a 2021 Toyota 4Runner
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  • Recommended Redarc Plug and Play Brake Controller Adapter for a 2022 Toyota 4Runner
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  • Recommended Plug In Harness and Mounting Panel for a Redarc Brake Controller in a 2010 Toyota Tacoma
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  • Trailer Brake Controller Options for a 2023 Toytoa 4Runner
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  • Recommended Trailer Brake Controller For a 2024 Toyota Tundra
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  • Troubleshooting Difficulty Calibrating The Redarc Tow-Pro Liberty
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  • Installing Redarc Tow Pro Liberty In A 2024 Toyota Tundra
    There is indeed a Redarc Tow Pro Liberty plug-and-play wiring harness for the 2024 Toyota Tundra. For that we have the # Plug-and-Play Wiring Harness # RED49FR, which will plug directly into the port under your dash. To replace the broken knob you can use the Replacement Control Knob for Redarc Tow-Pro Liberty Electric Trailer Brake Controller # RED57FR. I also recommend using the Mounting Panel # 331-TPSI-002 which will give the control knob a nice seamless factory look in your new Tundra.
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    Image 1 for Image 2 for
  • Troubleshooting Tow-Pro Liberty Recalibrating After Trailer Disconnect
    I reached out to Redarc and it sounds like you need an extra ground wire for your Redarc Tow-Pro Liberty Brake Controller # RED24FR. There is no Redarc wiring harness available for your vehicle, but if you look at one like the # RED49FR it has an additional ground wire. This is what allows the controller to retain power when the trailer is disconnected. If you hard wired your brake controller using the Toyota provided pigtail you will need to splice an extra ground wire in with the Toyota...
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  • Recommended Plug-and-Play Harness And Mounting Panel For Redarc Tow Pro Elite In 2021 Toyota 4Runner
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  • Will the Redarc Tow-Pro Liberty Brake Controller Fit a 2024 Toyota 4Runner
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  • Brake Controller Wiring Adapter for a 2022 Toyota 4Runner and Redarc Tow Pro Elite
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  • Parts Needed When Installing a RedArc Brake Controller on a 2021 Toyota 4Runner
    Whether you are using the user controlled mode (manual mode) or the proportional mode on the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR there is no need for a diode. The only other thing you would need to install the RedArc Tow-Pro Eilte would be the Plug-and-Play Wiring Harness for Redarc Tow-Pro Classic or Elite Trailer Brake Controllers # RED49FR (if you have the tow package, I am assuming you have the tow package due to the product linked being the tow package harness)...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Jonathan Y
Video by:
Jonathan Y
Employee Thomas T
Video by:
Thomas T
Employee Conner L
Test Fit:
Conner L
Employee Kristina F
Written by:
Kristina F
Employee Michael B
Installed by:
Michael B
Employee Bradley B
Installed by:
Bradley B

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