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Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers
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Redarc

Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers

Part Number: 331-TPH-020
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$21.25
Retail:$38.92
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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 331-TPH-020 or order online at etrailer.com. Free expert support on all Redarc products. Great prices and Fastest Shipping for Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers. Accessories and Parts reviews from real customers.
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  • Reviews (131)
  • Q & A (0)
  • Videos (2)
  • Photos

Redarc Accessories and Parts - 331-TPH-020

  • 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 (331-EBRHV2), Elite (331-EBRH-ACCV2), or Liberty (RED24FR) 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 (331-EBRHV2)
  • 2-Year warranty


TPH-020 Redarc Wiring Harness for Tow Pro Electric Brake Controllers - Plug and Play

Installation Details 331-TPH-020 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers

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




Video Transcript for Redarc Brake Controller 331-TPH-020 Review

Speaker 1: Today we're taking a look at the Redarc plug and play wiring harness for the tow pro trailer brake controllers. This wiring adapter eases the installation of your Redarc tow pro classic or tow pro elite electric brake controller. The custom connector end plugs into the port beneath your vehicle's dash so this is a vehicle specific wiring harness. And then the other end plugs into the tow pro electric brake controller. Now if you're using this on the tow pro elite, it plugs directly in there. If you're using this on the tow pro classic, some wire splicing is required.I also want to point out that it has a protective mesh that goes over the wires.

It keeps the wires bundled together and protected. That's going to do it for today's look at the Redarc plug and play wiring harness for the tow pro trailer brake controllers.

Customer Satisfaction Score:


Customer Reviews

Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers - 331-TPH-020

Average Customer Rating:  4.8 out of 5 stars   (131 Customer 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:
Dodge Ram Pickup

I installed this on my 2021 RAM 1500. If your truck has a "towing package" but no factory brake controller, this is what you need to hook up your Redarc brake controller. Watch the videos, it's not a simple job but most people can handle it.



by:

Saw a YouTube video from etrailer installing on a 2020 ram 1500, very instructional to the point, detailed, I got it done in about an hour. Took my camper for a test drive just like the video said it was blinking blue and green eventually turned blue after it calibrated. Found a setting that worked for me after that, thank you! Sleek design compared to the bulky old systems



by:
Dodge Ram Pickup

Harness does exactly what it is supposed to do, connection from Redarc TowPro Elite controller into 2021 Ram Rebel factory harness. Tested all wires on bench prior to installation and everything checked out, and no loose terminal ends in cheap connector here at all.

Glenn profile picture

Glenn

6/18/2024

A year later towing with our 21 Ram Rebel 1500 and everything is Still spot on. Redarc TowPro Elite controller with harness from etrailer is the best self-calibrating unit I have ever used.



by:
Dodge Ram Pickup

I already used this product once on my Jeep gladiator so I expected it to work just like I have on my ram pick up truck



by:
2018 Ram 1500

Easy to install product but I never would ave attempted it without the detailed installation video. Also eTrailer knows the correct adapter so there was no guessing.



by:

Etrailer's web site determined which wiring harness I needed based on my vehicle. It fit perfectly and was delivered along with the controller in just a few days. I don't know what else you could ask for.



by:
Dodge Ram Pickup

Trailer brake install video specific for my Ram 1500 truck was very helpful. Ram connection cable was perfect fit.
The tow mirrors will work fir now until I decide on vehicle tow mirror replacement



by:
2018 Dodge Ram Pickup

Works as advertised. Excellent video on how to install made it easy to follow along. Pretty much plug and play. Easy to adjust and easy to use and get to. Had an Echo controller before and was ok in a pinch but was erratic plus fumbling around with cell phone is not the easiest and safest. Installed on 2018 Ram 1500.



by:
2016 Ram 1500

It's plug and play but the installation of the knob was difficult cause the manual override wouldn't work and took some work to get it in but still haven't got it right but it works.



by:

Easy install and looks great. No controller hanging under the dash.
Quick shipping. Pleasure to do business with etrailer.



by:

As always, it’s just what I needed Thanks to the phone helper who figured what was best.



by:
2021 Ram 1500

Great selection. Easy to find the specific part I needed (brake controller adapter harness). Great price, extremely fast shipping (within hours), excellent communication (email). Very satisfied customer.



by:
2020 Ram 1500

Fit 2020ram 1500 works great so far



by:
2019 Dodge Ram Pickup

Perfect fit for my 2019 Ram 1500 classic. Awesome plug and play harness.



by:

Easy to install. Happy Etrailer provided video to properly install. Can't say the manufacturer instructions were all that clear, but not faulting them.



by:

Shipping was fast but controller came without the knob. Chatted with etrailer and knob was ordered (I hope). Install was clean and fast following the video on the site. Havnt pulled the trailer yet. Overall so far so good.



by:

Trailer brake controller works perfectly. Good control of trailer braking with a dial of the knob.

Installation of electrical was easy with plug and play harness, however the mechanical installation took some time.

Very satisfied with the product.



by:

Perfect fit made install a breeze



by:

When you need a quality part for your Trailer or Tow Vehicle, there is only one place to shop eTrailer. I have bought replacement lights, water heaters and several brake controllers for my Trailers and trucks. Good quality parts with excellent instructions and Technical Support.



by:

This harness worked well for hooking up my Redarc brake controller to my 2020 Gladiator. Two wires need to be reversed. There is a youtube video on how to do that. It's very easy.

Peter profile picture

Peter

3/30/2022

Worked great for 18 months and then I sold the trailer. Still 5 star!



by:

Had to hook the trailer up to the truck to test it. It wouldn’t calibrate without a trailer hooked up but seems to be working fine. I like the small size and it being mounted in the dash. Hope it continues to work well.



by:

This wiring hooked up to the factory harness on my 2022 Ram 2500 without any problems. Have not tried the entire braking system out yet but it seems to be working without a trailer.



by:
2015 Ram 1500

Already had controller,new truck,plug and play easy



by:

The wiring harness was invaluable for making my Redarc controller installation both simple and easy.

Big J. profile picture

Big J.

3/26/2022

It works as well as the day it was installed.



by:

Super Fast Delivery! Totally knowledgeable about everything I needed and answered all my questions to be sure I got just what I needed. This outfit really knows what they are doing! Highly Recommended!

Robert profile picture

Robert

11/6/2023

Its great. There wasnt a pre-made harness for my 2005 Dodge RAM pickup, but the truck itself was pre-wired for a trailer with a connector plug under the dash. I got a universal adapter for the pre-wired truck plug and spliced it to the REDARC plug, plugged in my flatbed trailer then calibrated the brake unit and everything works perfectly. A GREAT unit!

MikeL profile picture
Etrailer Expert

Mike L.

11/16/2023

@Robert We're glad to hear you're happy with it!

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131
Show More Reviews

See what our Experts say about this Redarc Accessories and Parts

  • Which Harness For Redarc Liberty Brake Controller For 2025 Ram 1500
    Hi Steven, Thanks for the purchase and we do have the right harness for your 2025 Ram 1500 and the Redarc Liberty Brake Controller # RED24FR. The correct plug-in harness is the following part: - Redarc Plug-and-Play Wiring Harness # 331-TPH-020 You can also find the instructions linked below.
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  • Recommended Brake Controller For A 2018 Ram 1500
    Factory brake controllers seem to unfortunately be very temperamental and usually quite a bit more expensive that an aftermarket brake controller so I have to recommend going with an aftermarket option. Luckily there is a brake controller port so integration of the brake controller's wiring into your 2018 Ram 1500 will be easy peasy. I recommend the Redarc Tow-Pro Liberty Brake Controller # RED24FR along with the Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers...
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  • Troubleshooting Brake Controller Errors When Running Lights Or Hazard Lights Are Turned On
    Hey Michael, The first thing I'd check is the ground both on the truck's 7-way because a weak ground causes all kinds of goofy issues. I'd just splice into the back of the factory 7-way and run a 10 gauge wire # 10-1-1 to the vehicle frame with a ring terminal # 44-5356A and self-tapping screw. I'd also check that there's not bare or damaged wires touching each other behind the 7-way. From there I'd start to question that the brake controller is properly functioning. You've already...
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  • Will The Facotry Brake Controller In A 2022 Ram 3500 Work With A Titan BrakeRite EOH Actuator
    Dexter makes module adapters to connect the BrakeRite # DX82KR to Ford and Chevy OEM controllers, but unfortunately does not for Ram so you'll need to install an aftermarket EOH brake controller. The OEM module adapters typically have a delayed response time as well so it's honestly better to go with an aftermarket option to avoid this issue. For your 2022 Ram 3500 I recommend the Redarc Tow-Pro Elite Brake Controller # RED44FR along with the Redarc Plug-and-Play Wiring Harness for Tow-Pro...
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  • Recommended Trailer Brake Controller For a 2022 Ram 2500
    I recommend the Redarc Tow-Pro Elite Brake Controller # RED44FR for your 2022 Ram 2500. This will connect with the Plug and Play Wiring Harness # 331-TPH-020 to the under dash connector. I prefer this controller over the Curt Echo # C27JR with the Adapter # C51458 and factory options as it gives you more adjustability and is easily controlled with the dash mounted control knob. While the Curt is easy to install you have to control everything from your smart phone including adjusting braking...
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  • Redarc Plug & Play Harness For Tow-Pro Liberty On a 2020 Dodge Ram 1500 Bighorn New Body Style
    Yes, the Redarc Plug-and-Play Wiring Harness # 331-TPH-020 is the correct harness for adding the Redarc Tow-Pro Liberty Brake Controller # RED24FR to your 2020 Ram 1500 Bighorn. The Universal Mounting Panel # 331-TPSI-001 can be used for a more factory look. Yes, you will be able to connect it with the harness and be ready for towing, unless you previously had a factory brake controller. If you had a factory controller your truck will need to be flashed by a dealer to remove the programming...
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  • Recommended Trailer Brake Controller For a 2021 Ram 1500 Classic
    I recommend the Redarc Tow-Pro Liberty Brake Controller # RED24FR for your 2021 Ram 1500 Classic. This will plug and play into the factory wiring on your Ram with the Redarc Plug-and-Play Wiring Harness # 331-TPH-020. You can also place the small control knob where it is most convenient for you to use. The main unit mounts discretely behind the dash for a clean appearance.
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  • Trailer Brake Controller For a 2019 Ram 1500 That Does Not Require a Factory ECU Flash To Operate
    Yes, if you are going to install the Mopar Brake Controller Kit on your 2019 Ram 1500 you will need to have the computer flashed to be able to use the factory controller. We do have the Redarc Tow-Pro Liberty Brake Controller # RED24FR which you can connect using the Redarc Plug-and-Play Wiring Harness # 331-TPH-020. This controller is its own standalone unit and will not require any programing from a dealer to utilize. It has a small control know which you can mount to your dash to easily...
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  • Recommended Plug and Play Adapter to Install a Brake Controller in a 2024 Ram 2500
    I would be happy to! You're looking for the Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers item # 331-TPH-020. This will allow you to install either the Redarc Tow-Pro Elite Brake Controller item # RED44FR or the Tow-Pro Liberty item # RED24FR in your 2024 Ram 2500 without cutting or splicing wires.
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  • Parts Needed to Install Redarc Tow Pro Elite on 2019 Ram 1500
    To install the Redarc Tow Pro Elite part # RED44FR all that you need is the install harness part # 331-TPH-020 that you referenced which plugs in under the dash. There wouldn't be any need to take the truck up to the dealer and have anything reprogrammed.
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  • Recommended Brake Controller for a 2016 Ram 2500
    I would be happy to! The best option for a plug in brake controller for your 2016 Ram 2500 is going to be the Redarc Tow-Pro Liberty Brake Controller item # RED24FR. This is a proportional brake controller that activates your trailer's brakes when your Ram decelerates. The reason the Tow-Pro Liberty is the best option is because of its unique installation method where the only visible portion is the control knob that's about the size of a nickel. The main unit is hidden away inside your...
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  • Parts Needed To Install Redarc Tow-Pro Liberty RED24FR In 2021 Ram 1500 Big Horn
    To install the Redarc Tow-Pro Liberty # RED24FR in your 2021 Ram 1500 Big Horn you will need the Plug-in Adapter # 331-TPH-020. The # 331-TPH-020 will plug in to the factory trailer brake controller port underneath the dash of your truck and then into the Liberty # RED24FR. This will be the only wiring connection you will need to make. I included videos of the products mentioned for you to take a look at.
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  • Installing Redarc Tow Pro Liberty Brake Controller on 2021 Ram 1500
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    Yes, the Redarc Tow-Pro Elite Brake Controller # RED44FR will connect to your 2022 Ram 2500 using the Plug-and-Play Wiring Harness # 331-TPH-020. The connector is found on all the Ram 2500 trucks regardless if it came with a factory controller. Not having a factory controller will make the installation easier as it does not require having the factory ECU flashed to remove the controller.
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    Image 1 for
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    I doubt you'd be able to increase the asking price of your 2018 Ram Tradesman if you installed the OEM brake controller but I would think that it could only help in selling process to be able to say that option is on the truck. The truck market is pretty crazy though so I doubt you'd have any trouble selling the truck either way and will probably be able to ask a premium price. If you wanted the best function and safety though you really can't beat aftermarket brake controllers like the...
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  • Will The Tow Pro Liberty Work with my 2020 Ram 1500 Big Horn with the 5.7L HEMI?
    Hello Chris, Yes, the Redarc Tow-Pro Liberty brake controller will work great in your 2020 Ram 1500 Big Horn with the 5.7L HEMI New Body just as long as you are not towing anything with more than 2 axles. For the Tow-Pro Liberty you will want part # RED87CR, this part number will come with the brake controller and the vehicle specific pigtail for a simple install. For a clean looking install don't forget to grab a mounting bracket, for your Ram you can use the universal mounting panel...
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  • Will Redarc Tow-Pro Brake Controller Install Require a 2023 Ram 1500 Classic to be Reprogrammed?
    Hey Sal, great to hear from you again! The Redarc Plug-and-Play Wiring Harness # 331-TPH-020 will plug directly into the port on your 2023 Ram 1500 Classic so you can use either the Tow-Pro Elite # RED44FR or the Tow-Pro Liberty # RED24FR for towing trailers. I actually really like these brake controllers and I recommend them whenever I can. The only time you would need to have your truck computer reprogrammed (or flashed) would be if you had the factory brake controller installed. Since...
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    The trailer hitch I recommend for a 2020 Ram 1500 is the Curt Trailer Hitch Receiver part # C13419 which is super easy to install. It only requires three fasteners to attach and will provide a 6,000 lb gross trailer weigh rating. In regards to a brake controller, the Redarc Tow-Pro Elite Trailer Brake Controller part # RED44FR will be our best option and it offers plug-in play installation using the Redarc Plug-and-Play Wiring Harness part # 331-TPH-020. The hidden install means the only...
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Info for this part was:

Employee Lindsey S
Edited by:
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Employee Jameson C
Expert Research:
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Employee Dustin K
Video Edited:
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Employee Chris R
Video Edited:
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Employee Cole B
Installed by:
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Employee Wilson B
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Employee Sabrina W
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Employee Kristina F
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