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  1. Trailer Brake Controller
  2. Redarc
  3. Electric
  4. Electric over Hydraulic
  5. Proportional Controller
  6. Up to 3 Axles
Redarc Tow-Pro Trail Brake Controller w/ Custom Harness - Dash Knob - 2 Braking Modes - Proportional
Redarc

Redarc Tow-Pro Trail Brake Controller w/ Custom Harness - Dash Knob - 2 Braking Modes - Proportional

Part Number: RED74UR
In Stock
$279.00
Retail:$306.90
You Save: $27.90
Trailer Brake Controller

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Mount the control knob of this proportional brake controller on your dash for a factory look, and install the main unit out of sight. The Trail's unique user-controlled mode gives you direct control of your braking for any weather or terrain. Great Prices for the best trailer brake controller from Redarc. Redarc Tow-Pro Trail Brake Controller w/ Custom Harness - Dash Knob - 2 Braking Modes - Proportional part number RED74UR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Redarc Trailer Brake Controller - RED74UR

  • Electric
  • Electric over Hydraulic
  • Proportional Controller
  • Up to 3 Axles
  • Redarc
  • Hidden
  • Dash-Mounted Knob
  • Automatic Leveling
  • Indicator Lights

Mount the control knob of this proportional brake controller on your dash for a factory look, and install the main unit out of sight. The Trail's unique user-controlled mode gives you direct control of your braking for any weather or terrain.


Features:

  • Brake controller activates trailer brakes in proportion to your vehicle's braking
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
  • User-controlled mode gives you direct control of your braking
    • Great for off-roading or towing in adverse weather
    • Activates trailer brakes independent of tow vehicle's brakes
  • Dash-mounted knob keeps your vehicle interior looking sleek while giving you easy access to the brake controller
    • Lets you adjust braking power with the turn of a dial
    • Gives you a manual override at your fingertips
    • Offers simple diagnostics with colored LED alerts
  • Main unit mounts out of sight behind the dash in any position, direction, and angle with included mounting kit
    • No more banging your knee on a bulky controller
    • No interference with airbags or other vehicle accessories
    • No complicated wiring - custom-fit harness lets you plug in and go
  • Meets or exceeds both UNECE R21 and FMVSS 201 regulations for sustainability and safety
  • Made in Australia


Specs:

  • Application: trailers with up to 3 axles (6 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
    • Works with 12-volt and 24-volt vehicle electrical systems
  • Main unit dimensions: 4" long x 3-3/8" wide x 1-1/8" tall
  • Control knob dimensions: 1-7/8" long (including knob) x 9/16" wide x 3/4" tall
    • Length without knob: 1-1/4"
  • Output voltage range: 9V - 32V
  • Output current rating: 25 amps continuous
  • Maximum charging voltage: 12V DC
  • 2-Year warranty


Tow-Pro Trail Operation

The dash-mounted knob puts control of your trailer's brakes at your fingertips. In addition to offering fast, simple power adjustment and an easily accessible manual override, it has colored LED signals that let you know what the brake controller is doing at a glance.


Redarc Tow Pro Trail Brake Controller Calibration

When you are calibrating the brake controller for the first time, the LED lights will signal your progress. To finish setting up the device, you will need to drive your vehicle in a low-traffic area and brake 20 times or so to let the unit learn its orientation and the direction of travel. If your trailer is connected, the LED light will flash green/blue as it processes the information. If there is no trailer connected, the unit will still calibrate, just without the knob lighting up. The knob will stay blue longer as the calibration process gets closer to being done. When the display turns solid blue, initial calibration is complete. The unit will remain calibrated for the next time that you tow. If recalibration is required, it will happen automatically and without LED indication.


Once the brake controller is activated, you can use the knob to set the maximum amount of power that will be applied to your trailer's brakes. Typically, this power is only readjusted when you experience changing road conditions or if you switch over from a heavy, loaded trailer to a much lighter, empty trailer, or vice versa. To get more power to your brakes, rotate the knob clockwise toward 10. To decrease the power output, rotate it counterclockwise toward 0.


Redarc Tow Pro Trail Braking Output Red Light

When you apply the tow vehicle's brakes, the knob will change from blue to red to signal that the trailer brakes are being activated. The higher the braking power output, the deeper the red that you will see.


The Tow-Pro Trail keeps the manual override within easy reach, great for stopping sway or controlling your trailer's momentum in emergencies. To engage the manual override, just press the control knob. This will activate the trailer's brakes and brake lights without you having to apply the brakes on your tow vehicle, perfect for limiting trailer movement while you're cruising.


User-Controlled Mode

Redarc Tow Pro Trail User Controlled LED Signal

The Redarc Tow-Pro Trail comes with a unique feature that lets you respond to any terrain or weather you meet while on the road. The user-controlled mode gives you direct control over your trailer's braking so you can have exactly the level of power output you need for any situation - perfect for off-roading or adverse weather conditions. In this mode, the Tow-Pro Trail will apply your trailer's brakes with the same preset amount of power each time you activate the brakes in your vehicle. Set the power low if you're towing through sand or mud so that the trailer doesn't stop with too much force and act as an anchor. When on a steep descent, set the power to a higher level to ensure that the trailer's momentum doesn't cause it to push against the tow vehicle.


To turn on the user-controlled braking mode, rotate the knob counterclockwise and apply your vehicle's brakes. Push down on the remote knob twice (2 times within 1 second) and release the brakes. The knob will turn green to let you know that the mode has been activated.


Redarc Tow Pro Trail review - is redarc Trail worth the money

Simple, Out-of-the-Way Installation

Unlike most proportional controllers on the market, the Tow-Pro Trail has almost no mounting restrictions. It comes in 2 pieces - the main unit and the control knob. Because the only part that you need to be able to access is the control knob, the main unit can be mounted out of sight and out of the way. You don't have to worry about dinging your knee on a bulky brake controller or having something in your cab that can interfere with your vehicle's lower airbags.


Redarc Tow Pro Trail Dash Mounted Remote Knob

The dash-mounted control knob can be installed in any convenient spot that's easy for you to see and access. This can be a blank switch panel, an open spot on your center console, or wherever there's space on your dashboard. A universal mounting panel is included to ensure a clean, from-the-factory look. Custom-fit panels are available for certain vehicles as well. Before you do any drilling, be sure there's room behind the dash for the entire knob to install, including the part you don't see!


where to install REDARC Tow Pro Trail on 2023 Jeep Wrangler 4xe

Once you've decided where you want to put the control knob, you'll need to find a good place to install the main unit. Your only restriction is the 3' plug-in cable that has to be able to reach between both the main unit and the control knob. Securely mount the box using the included mounting kit. Do not zip-tie the box to wiring or cables that can shift as you drive.


Once you have the controller mounted in your cab, just plug the custom-fit adapter directly into your vehicle's built-in brake control wiring harness. The other end plugs into the brake controller. No hardwiring needed!


Note: If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake controller installation kit (ETBC7 - sold separately).


Proportional Braking

What is proportional Braking

The Redarc Tow-Pro Trail brake controller comes equipped with proportional braking to give you the best towing experience. Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.


The Tow-Pro Trail uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to slow at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



CIKTP-NA-012 Redarc Tow-Pro Trail Kit - Trail Trailer Brake Controller - Dash Mounted Knob - Hidden - Proportional Brake Controller - Redarc Wiring Harness for Tow Pro Electric Brake Controllers - Plug and Play

Installation Details RED74UR Installation instructions

This Product Fits The Following Vehicles




Video of Redarc Tow-Pro Trail Brake Controller w/ Custom Harness - Dash Knob - 2 Braking Modes - Proportional

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




Video Transcript for Review of Redarc Trailer Brake Controller - Tow Pro Trail Proportional Custom Harness - RED74UR

Hi, everybody. Andy here with etrailer.com. Let's take a brief look together at this REDARC Tow-Pro Trail Proportional Brake Controller with Custom Wiring Harness. Now this is going to fit your Toyota 4Runners, your Lexus, your Land Cruisers from Toyota, and your Sequoia, Tacomas, and Tundras as well, as you can see from the 2003 on in most cases, so you see the listing there, but go ahead and make sure to go through our vehicle fit guide here at etrailer.com. Enter the year, make, and model of your vehicle, and our fit guide will confirm that this brake controller and wiring harness will work for you, and if it's not a confirmed fit, you can go through the fit guide to find a comparable brake controller that will work for you. So again, make sure to go through our vehicle fit guide, but this brake controller is going to require minimal dash space in your vehicle, and it's gonna be very simple to install and operate.

This is gonna have a factory look and feel looking like it always belonged in your dash. You're really not gonna even know if you've got a brake controller installed in the cab of your vehicle with this REDARC brake controller. Now this brake controller is going to activate your trailer's brakes in proportion to your vehicle's braking action. It's gonna automatically adjust your trailer's braking based on the deceleration of your tow vehicle. Now this brake controller comes with a unique feature that lets you respond to any terrain or weather that you meet while on the road.

The user-controlled mode is going to give you direct control over your trailer's braking so you can have exactly the level of power output you need for any situation. So this particular brake controller is gonna be perfect for off-roading or adverse weather conditions. In this user-controlled mode, this Tow-Pro Trail will apply your trailer's brakes with the same preset amount of power each time you activate the brakes in your vehicle. You can just set the power low if you're towing through sand or mud so that the trailer doesn't stop with too much force and act as an anchor, or when you're on a steep descent, you're just gonna set the power to a higher level to ensure that the trailer's momentum doesn't cause it to push against the tow vehicle. Now this control knob is going to mount in your dash or any other easily accessible area, maybe like your center console, and it will allow for quick and easy adjustment of the braking power, which is the turn of the dial that you can see here, and it's also going to provide manual override by just pressing the knob to activate the trailer brakes.

This is also going to offer simple diagnostics with a bright-colored LED in the dial, and then this main unit here is going to install out of sight. So what's nice about this is there's not gonna be any more banging your knee on a bulky controller underneath your steering wheel as you're getting into your vehicle, it's not gonna cause any interference with airbags or other vehicle accessories, and, of course, no hard-to-reach override lever, or impossible-to-read screen. This can be mounted in any position, direction, and angle with the included mounting kit that you see here, and there's no complicated wiring. The custom-fitted harness that is included, it's just gonna let you plug in and go, and if you don't already have a seven-way plug at the back of your vehicle, take a look at our exclusive seven and four-way brake controller installation kit you see there on your screen. To get to that kit, you can just take that part number that you see there, ETBC7, pop that into the search field of our website.

That will take you to that kit, and you can add that to your order if you need a seven-way plug at the back of your vehicle. This brake controller is for trailers with up to three axles, six brake assemblies. It is designed for use with electric or electric over hydraulic trailer brakes, and it is designed to work with your 12-volt and 24-volt vehicle electrical systems. Before we leave our time together here, let me give you some measurements of the brake controller itself. So, looking at the overall length, four inches, overall width about three-and-three-eighths inches, overall height about one-and-one-eighth inches, and we do have these inserts here for the control knob, whichever one's going to best fit your console or your dash blank that you're filling in, you've got some options there for the best fitment to use with this control knob on the inside of your vehicle. Instructions are also going to be included to guide you through the installation and operation, but I think that's gonna wrap up our real quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.


Customer Reviews

Redarc Tow-Pro Trail Brake Controller w/ Custom Harness - Dash Knob - 2 Braking Modes - Proportional - RED74UR

Average Customer Rating:  4.8 out of 5 stars   (1560 Customer Reviews)

Mount the control knob of this proportional brake controller on your dash for a factory look, and install the main unit out of sight. The Trail's unique user-controlled mode gives you direct control of your braking for any weather or terrain.

by:
2019 Lexus GX 460

The Redarc controller that I ordered to install in my Lexus GX460 was perfect! I ordered the Tow Pro Trail version. The harness to connect the factory trailer harness under the dash was the correct one for my Lexus. lling the controller that se are a little more work than installing the ones that hang under the dash, but well worth it!



by:



by:

This worked perfect in our 2020 Acura MDX. Love how it looks and operates. I removed the center council (see link to video on how to below) and mounted everything in there.
The control knob looks great and is out of the way. I removed the 12 volt charger port and put the knob in its place. The only catch was it was not easy to find the fuse for the brake controller. After research and trial and error, I found the fuse was #17 in the rear fuse box. I appreciate the great service and support from etrailer.



by:

Nice brake controller. Have 2 of them. On both my cars it will occasionally blink red which means some sort of error but it still applies the brakes. Thinking the ground/neutral wiring on my trailer is the culprit. Installed with RED77FR on a 2024 Grand Cherokee L Summit (w/ factory Tow) despite site saying it's not compatible.



by:

Installed in my 2022 Ford Ranger, works great ?? The adapter for the lighter is a separate purchase.



by:

I saw the great online reviews of this controller and took the plunge. I bought my 2002 Chevy Silverado K1500 extended cab short bed truck new in 2001. It came with the HD Towing package which include a factory plug in trailer brake wiring loom. I took my time over a 2 day period to carefully install and triple check my install. The Chevy and Redarc wiring wiring descriptions made it easy to join the two harnesses. I used HD crimped plug in connectors further protected with shrank tubing. All wiring was bundled with zip ties after encasing in HD harness protective cover. Zip ties held in place behind the removable panel beneath the steering wheel. The control button is installed on the right side of the steering column within easy reach. Nice install. I read that the light would not go on until a trailer was hooking up. I was elated when we picked up our new cargo trailer and the controller knob light lit up upon hitching up. the first mile of travel allowed easy testing of the system and fine tuning came a few miles further down the road. GREAT PRODUCT!



by:

This is the third Redarc elite I've installed, the oldest being 4 years ago. They're all flawless, easy to use, more available and less intrusive than anything else. I can pull my single-axle motorcycle trailer empty and not be overpowered, or my 2 axle dump trailer without being underpowered. Spectacular in all regards.



by:

The push button to activate the brakes independently is a really nice feature for calibrating the braking power based on the weight on the trailer.

The led indicators are also nice.



by:

This thing is awesome! I lucked out and the etrailer demo install video was on the same type of tow vehicle I have, so I was able to mostly just follow along for the install. It went in with minimal effort. I tow a 20 ft TT that weighs about 3500 lbs with a Chevy Colorado.

I finally pulled our trailer from storage and had a chance to try out the controller. It is fantastic! My previous controller used bluetooth. With it I had problems with over braking at low speeds. I was constantly adjusting it between town and highway, and I found the adjustment clumsy because my phone locks after a couple minutes of not being used.

The redarc fixed all of that and more! After dialing in the right setting, braking is like the trailer is not even there. It's that good! There is little to none jerking when I stop at low speed. And adjusting it is simple as it is one knob on the dash. This is how a brake controller is supposed to work! I towed 10,000 miles with my "other" controller, and I can't wait to try this out on our cross country trip this year!

And as always, the etrailer folks are great to work with and full of wisdom that they share so I don't have to learn the hard way!



by:

Great workmanship and easy to install. I installed the main unit right below the steering wheel behind the panel per the video by redarc. If you install the dial where the 12v outlet plug is currently located, you can find another place to put your 12v port like i did. It was simple to adjust to my tandem axle trailer. Glad I purchased this instead of the more expensive factory controller.



by:

Installation was as described in the Colorado video. My 2015 4x4 dash required a different location than where the knob is located in the video( where the 4x4 knob is ). The dial knob just fits inside the upper clips for the credit card slot. I used the left side for better visibility. I drilled a pilot hole and then slowly enlarged it, dragging it as needed to keep it centered under the dash clip. You will understand when you remove the card slot. Remove the lower dash to get to a hidden screw, then the card holder pops straight out.



by:

Great prices and quick to ship. Well organized website. Wasn’t sure the REDARC install was something o wanted to handle. One disappointment… initially I called a listed installer found on your website - they stated they do not install product they do not sell. This pushed me to try to install myself. Lots of helpful information and install videos online made the difference.



by:

The Redarc Trailer brake controller has worked well for the past year. The instructions and videos made it easy to install and get setup. My only, minor, complaint was the button cover provided did not fit in our 2016 4Runner. I was able to use the cover I pulled out with a little trimming of extra plastic on the back. We have towed our pop up in mountains and plains, on interstates and off road. The trailer brake has worked without an issue. Highly recommended.



by:

It truly amazes me that Ford touts the towing capacity of my Ranger, yet not one dealership I called could offer a solution for a trailer brake controller to be able to pull my little camper. I finally turned to etrailer since they had helped me meet my towing needs in the past with a different vehicle. etrailer's Redarc Tow-Pro Elite Trailer Brake Controller was a perfect solution! They also supplied a terrific video explaining in great detail how to install it in my truck. I preferred the in-dash location using one of the extra twelve volt ports using the optional round adapter insert and found it to be very convenient after a summer of towing. Highly recommend both Redarc Tow-Pro Elite and etrailer!



by:

Love the self-calibration and hidden controller. Great space saver and works as described. I did find the knob location in your video not very good; I could not see it through the steering wheel when driving. As you can see from the picture it is now visible from the driver's seat and easy to adjust when needed. Also, in this location the only hole I had to drill was 3/16" behind the knob and not visible or damaging. I was able to use the knob bracket that came in the kit and just push it into place, very stable.



by:

I installed this on my 2009 Dodge RAM 1500. It replaced the other one I had. This was a challenge to install because of where I had to mount it under the dash. But it was also wired a little different. The former controller had the positive (red) and negative (black) wires reversed from this Redarc controller. When I installed the Redarc the way the other controller was wired the brake lights wouldn't work. Once I got them put right for the Redarc it is working right.



by:

Easy to install and works great. Love the stealth mounting. I get compliments on just the one knob being visible.



by:

Only way to fly. This brake system works like nothing else. Perfect



by:

This is the second Redarc brake controller that I have purchased. First one works so well in our new Bronco that when we got a 3 axle toyhaller I needed to up grade the controller in our truck.Redarc was the first choice after being so happy with the other one in our Bronco. Super easy installation that plugs right into the truck wiring with the correct harness for your vehicle.
etrailer made it easy to get everything that you need in one purchase (unlike some seller's where everything is sold separately) and it was at my door reasonably fast
Overall love the Redarc controller and very happy going through etrailer



by:

Great quality trailer brake controller, seats very nice, flush in the not use ash tray of my silverado. Lot of configuration options, ensure to read the instructions and watch the installation video, be advised it has no power until you plug a trailer, this had me going for a while :-). Thanks etrailer.



by:

I have not used it yet. But i did want to know if i could use it on a small open motorcycle trailer. If i have it on for the lights, will it still effect the braking if i turn the dial to "0" on the dash? Thank you! But I can tell you, very easy to install.



by:

So far it is anazing! I installed it splicing with the gm wiring harness, and put the box under my console, with the knob in one of the accessory port holes using the knob adapter. The controller calibrated quickly, and works great once you get the gain set correctly. The ONLY thing I don't care for is that the unit stays powered up, so the led stay lit while a trailer is hooked up. I guess it doesn't drain battery much, but I don't care for anything draining my battery, no matter how small.



by:

Looks really nice, but I have not actually used it on the road yet, I have just driven around the neighborhood to test it and it looks and works great for the short distance that I have travelled, pulling a 10,000 gvw, car hauling two axle flat bed trailer.



by:

The install was straight forward. Being my second time I was able to install the controller easily and without much complication. I have both a Nissa Pathfinder and Armada, which made the installation easier since both models are similar. The product responds well, still trying to dial in the perfect breaking level.



by:

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.


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Andy C
Installed by:
Andy C
Employee Amanda K
Written by:
Amanda K

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