Redarc Tow-Pro Classic Trailer Brake Controller - 1 to 3 Axles - Preset

Part Numbers: 331-EBRHV2

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Trailer Brake Controller 331-EBRHV2 - Electric,Electric over Hydraulic - Redarc
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Redarc Tow-Pro Classic Trailer Brake Controller - 1 to 3 Axles - Preset
part number: 331-EBRHV2

Mount the control knob of this brake controller on your dash or console, and affix the main unit in an out-of-the-way spot. Controller activates trailer brakes with a preset intensity when you apply the brakes in your vehicle. Great for off-roading.


  • Brake controller activates trailer brakes with preset intensity
    • Signal is sent to trailer brakes when tow vehicle's brakes are activated
    • Immediate activation is great for off-roading
  • Control knob mounts in dash or other easily accessible area
    • Allows for fast and easy adjustment of braking power with turn of the dial
    • Provides accessible manual override - just press the knob to activate
    • Offers simple diagnostics with bright, colored LED
  • Main unit installs out of sight
    • No more banging your knee on a bulky controller
    • No interference with airbags or other vehicle accessories
    • No hard-to-reach override lever or impossible-to-read screen
  • Made in Australia


  • Application: trailers with up to 3 axles (6 brake assemblies)
    • Designed for use with electric or electric-over-hydraulic trailer brakes
    • Works with 12-volt vehicle electrical systems
  • Main unit dimensions: 3-3/8" long x 3-15/16" wide x 1-1/8" tall
  • Control knob dimensions: 2-3/8" long x 3/4" wide x 7/8" tall
  • Output voltage range: 9V - 16V
  • Output current rating: 25 amp continuous
  • Maximum charging voltage: 12V DC
  • 2-Year warranty

Redarc Tow Pro Classic Remote Head Diagram

Preset, User Controlled Braking

The Tow-Pro Classic applies your trailer's brakes when the brake pedal in your tow vehicle is engaged. Every time you apply the brakes in your vehicle, a signal is sent - via the brake switch - to the controller. The controller then sends power out to your trailer brakes to activate them with an intensity set by you. The amount of braking power can be adjusted to suit your preference, the road conditions, type of trailer, and size of the load. To determine which level is best for your application, you must test out your towing setup and choose what feels best.

Unlike a proportional brake controller, which activates your trailer's brakes based on the deceleration of your tow vehicle, the Tow-Pro Classic sends power out in the same way each time the brakes are engaged, no matter the braking situation. This means that you have complete control over each braking event.

Having this control over your braking is particularly important when overlanding or towing a trailer off-road because you may need to alter the trailer's braking based on the specific terrain and situation that you find yourself in. If you tow through sand or mud, for example, you'll want to keep the Classic's braking power turned down low so that when you activate the brakes in your vehicle, the trailer doesn't stop with too much force and bite into the sand. In this instance, if the braking intensity is set too high, your trailer can act as an anchor on your vehicle.

If you are towing a trailer down a steep descent, you will want to have the brake power set to a higher level to ensure that the trailer's momentum doesn't cause it to push against the tow vehicle. The fact that this controller activates your trailer's brakes immediately is helpful in this situation as well. Unlike a time-delayed controller, the Classic makes sure your trailer brakes activate as soon as you apply your vehicle's brakes, which is particularly important when you're traveling down a steep hill.

Tow-Pro Classic Operation

The dash-mountable control knob on the Tow-Pro Classic makes it easy to control your trailer's brakes. In addition to offering fast, simple power adjustment, this knob has an LED indicator that changes color to display different information about the controller.

Redarc Tow Pro Classic User Controlled LED Signal

A solid green LED light on the control knob will signal that the unit is connected to your trailer's brakes.

This knob lets you 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 switch clockwise. To decrease the power output, rotate it counterclockwise.

Redarc Tow Pro Classic Brake LED Intensity

When you apply the tow vehicle's brakes, a red LED light will signal that power is being sent back to the trailer brakes. As you increase brake power with the control knob, the light will glow brighter, indicating the increased braking power.

This light will also glow at its brightest when the manual override is activated. To engage the manual override, just push down on the control knob and the trailer's brakes will activate with an intensity that matches the preset power level on the controller. Once you stop adjusting the power, or once the override is released, the LED light will fade to its normal appearance. This is designed to be easier on your eyes at night, while still presenting a visual indicator.

Simple, Out-of-the-Way Installation

The Tow-Pro Classic comes in 2 pieces - the main electronic 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 in an out-of-the-way location. So you no longer have to worry about a bulky brake controller scraping against your leg or causing interference with your vehicle's lower airbags.

Redarc Tow Pro Elite Classic Mounted Remote Knob

The dash-mountable control knob can be mounted in a convenient spot that is easy for you to see and access. This can be a blank switch panel, an open area on your center console, or wherever there's space on your dashboard.

Once you have determined where to mount the control knob, you will want to find a good place to install the main unit. The only mounting restriction for the unit is that the included 3' plug-in cable is able to reach between the main unit and the control knob.

The included connector plugs into the main unit so that, once wired, you can easily unplug and remove the unit if you need too. This connector does not come pre-wired. You will have to use 16-gauge wire (16-1-1 - sold separately) to make the connections between the connector and your vehicle.

For assistance in properly wiring the Tow-Pro Classic, please refer to the diagram below:

Redarc Tow Pro Classic Wiring Diagram

Installation Accessories

See's exclusive 7- and 4-way brake-control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle.

Note: A 30-amp circuit breaker kit (331-CBK30-EB - sold separately) may be required for installation.

EBRHV2 REDARC Tow Pro Classic Trailer Brake Controller - 1 to 3 Axles - User Controlled

California residents: click here

Customer Reviews

Redarc Tow-Pro Classic Trailer Brake Controller - 1 to 3 Axles - Preset - 331-EBRHV2

Average Customer Rating:  4.8 out of 5 stars   (16 Customer Reviews)

Mount the control knob of this brake controller on your dash or console, and affix the main unit in an out-of-the-way spot. Controller activates trailer brakes with a preset intensity when you apply the brakes in your vehicle. Great for off-roading.

- 331-EBRHV2
by: Curt06/01/2019

I love the small size of brake dial. It must be very sensitive however because I am towing around 3k lbs with my Ridgeline and it’s only on 2-3. The wiring color diagram was not as my OEM harness but I figured it out. Love the small size the most and thats what I really wanted. I used a knockout on the dash and it fit in nicely with a few modifications. 651347

Update 1yr Later: after about a year I had an issue with my Classic being sticky when using the manually override - May have been my fault! Talked with Mark at Redarc and he was a pleasure to work with. He upgraded me to the Pro and install was a breeze. BTW Im using the same controller that came with the Classic - states it would work the same. Took me truly 10min to change over. He also sent me a new knock out for my 18 Ridgeline.
Curt - 07/08/2020


- 331-EBRHV2
by: Rj03/26/2020

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. 771021

- 331-EBRHV2
by: Larry05/04/2020

Installed in 2019 F-150. Not a whole lot of options on where to mount the remote switch on the dash. Mounted a plated of aluminum in the space where the factory control would be. The factory wiring was behind the dash in the back of the dummy cubby hole. The plug-and-play harness plugged directly into the Ford harness, then just had to clip off the black end and push the wires into the new connector supplied with the control module. The control module fit perfectly under the steering column, horizontally on a steel support plate. The next day, towed the trailer with two RZR's from WI to KS and back. Every thing worked perfectly. 792615

- 331-EBRHV2
by: Keith G08/03/2019

I wanted something that would be out of the way was a fairly simple installation with some measurements to make sure it would go where I wanted it . 2018 GMC SLT 680286

- 331-EBRHV2
by: Dustin02/18/2018

I’ve been eyeing these Red Arc controllers up for a while. I have a new Cherokee (KL) and there is NO good place for a brake controller in this vehicle. The cabin is tight and there is a knee air bag that prevents traditional mounting under the steering wheel. I ended up mounting the control knob in the dash, next to the headlight switch and everything seems to be working well, so far. The only complaint I have is that I feel the construction of the control knob assembly and controller housing are a bit cheap compared to the cost. I mean really, it wouldn’t take much effort/cost to pot the electrical components which would result in waterproof and more durable components. Overall though, I’m pretty happy with the controller so far and would purchase again. I may pick up the pro model for my Dodge Ram as I do appreciate not having a big controller hanging off the bottom of the dash. 476794

- 331-EBRHV2
by: Keith F04/24/2018

Took me a while to finally get over the price of this brake controller and I'm glad I finally did. It was an easy install, and the control knob was mounted in a perfect spot out of the way and unobtrusive. Exactly why I bought it. I'm very pleased. I installed it myself, but if you are not familiar with wiring then letting a pro install it for you might be the way to go. I personally do not like progressive rate controllers so this is a perfect fit to go in my Jeep JK Wrangler. 500221

- 331-EBRHV2
by: John11/19/2018

Easy install. Great price. Works flawlessly. Very happy with my purchase and especially got great advise and help from Tiffany. What can I say. She really knows her stuff. Pure delight to work with. Made my decision very easy. Thank you! 584070

- 331-EBRHV2
by: Daniel07/27/2020

Excellent product ...Exceeded my expectation and have referred this to my friends. 851773

- 331-EBRHV2
by: Michael07/04/2020

Went together easily. Good directions. etrailer comes through again. 830251

- 331-EBRHV2
by: Carl N06/21/2020

Worked great would recommend any to buy small and convenient dial can be put any where and look good 819201

- 331-EBRHV2
by: Dion06/10/2020

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. 816523

- 331-EBRHV2
by: R Doran08/14/2019

The brake control was easy to install and works perfectly every time! 688284

- 331-EBRHV2
by: Keith G08/03/2019

I wanted something that would be out of the way was a fairly simple installation with some measurements to make sure it would go where I wanted it . 680282

- 331-EBRHV2
by: Thomas06/01/2019

Easy to install except metric sizing for wire and holes 651442

- 331-EBRHV2
by: Robert04/16/2018

Brake controller works well; But I had a hard time finding a location for the button under - behind my dash, ended up locating it on the right side of the steering column still tight but is working. 2010 Honda pilot. 497030

- 331-EBRHV2
by: C David04/08/2018

When my brake controller died 6 days before my family trip to Florida, George and the eTrailer team expedited my order and made sure I received the replacement in time to install it before our trip. Great service and a helpful team! Thank you.. 494025


Ask the Experts about this Trailer Brake Controller
Do you have a question about this Trailer Brake Controller?

  • Is Redarc Tow Pro Classic a Good Brake Controller for a 2020 Jeep Gladiator
  • Yes, the Redarc Tow Pro Classic part # 331-EBRHV2 is a really great option for a vehicle like your 2020 Jeep Gladiator that would to infrequently. What I really like about it for a situation like yours is that when not in use it won't occupy a large area mounted to your lower dash panel. Instead it's just a small knob like what you see in the picture I attached. To install this easily in your 2020 Jeep Gladiator the install connector you'd need is the part # 3073-P which will wire color
    view full answer...

  • Can the Adapter # 3031-S be Used with the RedArc Classic # 331-EBRHV2 on a 2018 Toyota Tacoma
  • Yes, the Adapter Pigtail # 3031-S plugs in directly to the connector under the dash of your 2018 Toyota Tacoma and allows you to splice the open wires into the Redarc Tow-Pro Classic # 331-EBRHV2. I have attached a review video and installation details for you to check out.
    view full answer...

  • What Adapter to Use With RedArc Tow Pro Classic on 2020 Mercedes Benz Sprinter 3500
  • It sounds like you're asking about an available adapter plug to install the RedArc Tow-Pro Classic # 331-EBRHV2, and as long as it came with the factory towing package you can use the # 3063-P to install this brake controller. If your 2020 Mercedes-Benz Sprinter 3500 did not come with the factory towing package, the Tow-Pro Classic will need to be hardwired in. Additionally, the RJ45 cable only is available in the 3ft length that comes with the unit. This is a standard RJ45 network
    view full answer...

  • Install Adapter Needed to Install Redarc Tow Pro Classic in 2016 Ford F-150
  • To install the Redarc Tow Pro Classic Brake Controller part # 331-EBRHV2 you referenced in your 2016 Ford F-150 with the factory tow package all you need is the install harness part # 331-TPH-007 which plugs into the port on your truck that's under the dash.
    view full answer...

  • Best Brake Controller for a 2018 Land Rover Range Rover
  • The Redarc Tow-Pro Classic Trailer Brake Controller part # 331-EBRHV2 is the best brake controller option for a 2018 Land Rover Range Rover because it has both user and proportional controlled modes as well as a factory-like install look. It will offer splice free installtion if used with the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers part # 3035-P and Redarc Tow-Pro Wiring Adapter for Tekonsha Brake Controller Harness part # 331-TPH-017.
    view full answer...

  • Recommended Brake Controller for 2019 Chrysler Pacifica Towing Casita Spirit Deluxe
  • For your brake controller I recommend using the Red Arc Tow Pro Classic # 331-EBRHV2 it installs out of the way so it's not going to be effected by airbags or give you something that you'll bang your knees on constantly, while still providing you with proportional braking control of your trailer. The knob on the Tow Pro allows you to adjust braking control as needed and also provides an easily accessible manual override, so there's no reaching around under the dash to find the button when
    view full answer...

  • Brake Controller Availability to Mount Into Dash of 2010 Ford F-150
  • I don't have a factory Ford brake controller for your 2010 F-150, but I do have an option for you to install a brake controller and still have a clean looking dash. Since mounting spaces can vary between year/make/models of vehicles the best option that I have for you is a Redarc brake controller. Redarc has their Tow-Pro Classic # 331-EBRHV2 or their Tow-Pro Elite # 331-EBRH-ACCV2 which can be mounted anywhere (even behind your dash) because the user controlled part of the brake controller
    view full answer...

  • Does Redarc Tow-Pro Classic Brake Controller Have a Weight Capacity
  • The Redarc Tow-Pro Classic Trailer Brake Controller # 331-EBRHV2 does not have a weight capacity; it will absolutely work for the weights you mentioned; however, this will require your tow vehicles to be set up to tow with an electric brake controller. If your tow vehicle does not have a factory tow package they will need a 4-flat (which is vehicle-specific) and Universal Installation Kit for Trailer Brake Controller # ETBC7, which will give you a 7- and 4-way trailer connector, circuit
    view full answer...

  • Can Redarc Tow Pro Brake Controller Fit 2009 Cadillac SRX
  • Yes the Redarc Tow Pro brake controller # 331-EBRHV2 that you referenced is compatible with your 2009 Cadillac SRX. You will need to start with a 4-way (if you do not have one). For that you would want the # 119179KIT. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product
    view full answer...

Info for this part was:

Edited by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Joshua S
Video Edited:
Chris R
Installed by:
Cole B
Written by:
Leah S
Test Fit:
Brent H
Updated by:
Brian T
Updated by:
Hannah L
Updated by:
Kristina F
Updated by:
Noah M

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