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Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional

Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional

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Our Price: $1,619.00
Tow Bar Braking Systems

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Product Expert Mike S

Is this right For you? Product Expert Mike S says:

Yes, if you:

  • Need to be able to switch between towed vehicles
  • Are towing a newer or nicer vehicle that you don't want to permanently modify
  • Have other Blue Ox products and love their quality and reliability

No, if you:

  • Would rather avoid the hassle of having to set up your system before each trip
  • Don't have room in your RV to stash a bulky brake in a box
Flat tow your vehicle safely with this precise, responsive braking system that can be easily switched between towed cars. LED display lets you easily adjust braking power, apply manual override, and monitor the system from your motorhome. Lowest Prices for the best tow bar braking systems from Blue Ox. Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional part number BRK2019 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (124)
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  • Used (1)
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Blue Ox Tow Bar Braking Systems

  • Brake Systems
  • Proportional System
  • Hydraulic Brakes
  • Air Brakes
  • Air Over Hydraulic Brakes
  • Portable System
  • Blue Ox
  • Recurring Set-Up
  • Power Assist Brake Compatible

Flat tow your vehicle safely with this precise, responsive braking system that can be easily switched between towed cars. LED display lets you easily adjust braking power, apply manual override, and monitor the system from your motorhome.


  • Proportional system provides precise, responsive braking for your towed vehicle
    • Responds to deceleration of RV to activate towed car's brake pedal with matching intensity
  • Adjustable power settings let you cater the brake sensitivity to your particular setup
    • Easily increase and decrease the force at which your towed vehicle's brakes are applied
    • Conveniently adjust the braking force from the cab of your motorhome
  • Remote controller with LED display lets you monitor the braking system from your motorhome
    • Mounts in cab and plugs into 12V accessory outlet
    • Lets you activate towed car's brakes in emergency situation or to correct sway
    • Alerts you if the towed vehicle becomes detached from your motorhome
  • Built-in supercapacitor will activate your brakes if a breakaway occurs, even if your car's battery is dead
    • Allows the system to activate if a breakaway occurs for up to 30 minutes without a power connection
  • System is easy to set up in towed car
    • Actuator box sits on floor in front of the driver's seat
    • Adjustable feet can be raised or lowered to level the unit on uneven floorboards
    • Bracket clamps around brake pedal and offers excellent leverage
    • Unit plugs into 12V accessory outlet
  • Brake pressure is continuously monitored during towing to ensure proper setup
    • Unit will send a warning if there is too much pressure to activate the brakes properly
  • Compatible with hybrid vehicles
    • Simply select H mode for hybrids or other cars with continuous power-assist brakes
  • Convenient carrying handle and hook for plug and wiring simplify removal and storage
  • Breakaway device included
  • Made in the USA


  • Weight: 16 lbs
  • 2-Year warranty

Proportional Braking

Blue Ox Patriot 3 Proportional Braking

A vast improvement over "on/off," time-delayed braking systems, which brake at a single, pre-set level, the Patriot 3 has a proportional design for precise, responsive braking. The Patriot 3 applies your towed car's brakes with an intensity that matches your RV's braking action. The built-in inertia sensor detects when and how your rig slows down, and it then engages the actuator arm to press your car's brake pedal with an intensity that matches that slowing action. If you slam on the RV's brakes in an emergency situation, your towed car's brakes will respond with the same intensity. If you press the RV's brakes just enough to slow down a bit, your towed car will decelerate in the same way. The result is improved control, better stopping, and less wear on both your vehicle's and RV's brakes.

Easily Switch Between Towed Cars

The beauty of a portable braking system, compared to a unit that installs permanently, is that you can easily switch it between towed vehicles. It's also a great alternative if you own a newer vehicle that you don't feel comfortable modifying. As long as you have a second vehicle breakaway kit (BRK2505 - sold separately), the Patriot 3 can be easily transferred and quickly set up in another car, giving you the freedom to switch up which vehicle comes with you on your next camping trip.

In-Cab Controller with Easy-to-Read Display

Blue Ox Patriot 3 In-Cab Controller

The included controller has an easy-to-read LED display that plugs right into your motorhome's 12V outlet. The monitor slides into the included rubber stand, which can rest anywhere on your dashboard, or it can be mounted with the included hook-and-loop strip.

This unit lets you monitor your braking system while you're driving your motorhome, so you'll always be aware that the Patriot 3 is working and functioning properly. Not only does the controller let you know when the unit is activated, but it will also alert you if the unit inadvertently shifts while you're on the road. This could result in too much pressure being applied to your car's brake pedal, which is why a warning will be sent to the controller so you can pull over and make the necessary adjustments.

As another safety feature, if your towed vehicle ever becomes detached from your motorhome, the screen on the controller will alert you by turning red.

Braking Power Settings

Blue Ox Patriot 3 Force Settings

By adjusting the brake sensitivity using the in-cab controller, you can control the force at which your towed vehicle's brakes are applied when the system senses deceleration. The settings range from 1 to 10. The higher the setting, the more force will be applied to your towed vehicle's brakes. For smaller vehicles, you can get by just fine on a lower setting. Larger vehicles, or vehicles with less responsive brakes, will require a higher setting. You can also adjust the force purely to match your personal preference.

The controller also includes a manual override button that automatically activates your towed vehicle's brakes. In addition to serving as a safety measure in an emergency braking situation, the manual override can also help correct sway and fishtailing with your towed vehicle.

Quick and Easy Setup

Blue Ox Patriot 3 Setup

The setup for the Patriot 3 is very straightforward. The braking system will fit nicely on the driver's-side floorboard of your towed car and plug into your 12V accessory outlet for power. To position the unit, first move your seat back as far as it will go and set the system in place.

Blue Ox Patriot 3 Brake Clamp

Then clamp the bracket on the arm securely around your brake pedal and twist the knob to lock it on. If your vehicle's floorboard is uneven, the included feet can be attached to the bottom of the braking system and adjusted to create a level surface for the Patriot 3 to operate. Move the front of the driver's seat forward until it's resting gently against the back of the unit. If there's too much pressure on the back of the unit, the lights will turn blue and red during the setup process, letting you know that the driver's seat should be moved back slightly. The back of the unit is adjustable as well, allowing you to raise or lower the butt pad to fit snugly against the front of the driver's seat.

Blue Ox Patriot 3 Setup

Once the unit is in place, setup is simple. Push the "power" button, and the unit will begin blinking blue and green lights, signifying that it's ready to be set up. Then push the "setup" button, which will let the unit run through a quick testing process. When the power light turns a solid green, the Patriot 3 is ready to go.

BRK2019 Blue Ox Patriot 3 Proportional Braking System

Replaces BRK2010, BRK2012, and BRK2016

Item # BRK2019

Installation Details BRK2019 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional - BRK2019

Average Customer Rating:  4.8 out of 5 stars   (124 Customer Reviews)

Flat tow your vehicle safely with this precise, responsive braking system that can be easily switched between towed cars. LED display lets you easily adjust braking power, apply manual override, and monitor the system from your motorhome.


There is no easy way to actually review this, it is not like i am sitting back there watching it when i have to brake hard on my RV. I know that it works, it does engage brakes. The breakaway works.
Two things to note/complain about.
When driving, every now and again (maybe once a day), the controller will beep but have no indication of what it is erroring about. I assume connection wireless or power in the back perhaps, but really have no idea. They should fix it so that if any fault is indicated it displays for at least a few seconds, and that one can go back and see history.
The other thing is sensitivity and force settings. The instructions have no information at all on how to actually gauge what is appropriate. The sensitivity i can see as I am driving, how easily it start applying force, so this i can adjust on a gut. But force? there is no way to test this.
Every single person i talked to or seen videos just set it smack in the middle.
In one sense i don't really want it to kick in unless i am braking fairly hard, and i want it to kick in pretty good when i do so, but i fear the delay in applying may make the actual action less helpful.
I have only had to panic brake once, i drive a 37' class A, my rear wheels locked for a few seconds, back end started coming out. I really have no idea what the flat tow was doing or not, wish i had history from the system and videos etc.
So all in all the product is okay, but it could be better. I dont know of any other system that is better.

A year later nothing has changed related to my review - i have had to panic break one more time since then - and i still dont know if or how helpful it was.
Thomas S - 03/25/2022


Worked fantastic, no problems. One thing however is the power supply; it connects using a 12v cigarette type plug; these are almost becoming non-existent; would be nice if it would work off a USB connection. This would also be handy if the emergency connection power supply also used a USB instead of having to run a wire through the firewall to a power source.


When I received my order I was missing 4 of the whiz nuts required to complete the installation of the baseplate to my jeep. I contacted customer support for help I was met with no real resolution as Blue Ox seemed to question my integrity on claiming the missing nuts. I ordered over $3k in product and was being questioned over $5 in missing nuts. I had to go buy my own. Very disappointed in Blue Ox and etrailer.

I will have our Customer Service team reach out to you.
-- Etrailer Expert Jenny N - 04/06/2022


The BlueOx system has worked great. Installation was not terribly difficult... getting the wire through the firewall was the trickiest part... but not too bad. Haven't had any major issues with the system.


I selected the Blue Ox Patriot 3 braking system because of the ease of use and the ability to move it to another vehicle if I needed to. Also there was no wiring needed in the towing vehicle. I test drove with the Jeep being towed and everything worked fine. I really liked all the information that the monitor displayed. The etrailer service was excellent and the shipping was quick.

It has been a pleasure using the Blue Ox Patriot 3 the last year. The unit is very light, making installation and removal easy. It was nice to not having to run any wires between the towing vehicle and the Jeep. The Bluetooth connection has worked great. I put a sock filled with marbles on each side just to make sure that the unit doesn’t shift. .
Bryce - 10/23/2021

Ford Ranger

This Breaking system is great. I do not know the Ford Ranger is behind me pushing when I stop. No extra pressure is needed on the brake peddle.

It works great. The only problems have been operator error.
David L - 01/15/2022


Using in a 2020 Gladiator. Set-up simple and works as advertised. RF controller matched right up and functions as it should. Couldn’t be happier product. Bought because of other positive reviews and reputation of Blue Ox products. Highly recommend!

Ronald - 02/02/2022


I bought this Blue Ox braking system to replace a system that costs 1/2 the price but was 10 times as difficult to install - and it broke about a year after I bought it. The Blue Ox isn’t cheap but you get whatever you pay for. The pain at purchase time quickly goes away with the convenience and ease of use. If you can afford it get it. I wish I had got it first.

2014 Jeep Wrangler

I went back and forth deciding whether to get a portable unit. This one seemed to get pretty good reviews. Seems to do well. Very responsive. Easy to set up. The worse part was running the disconnect and it wasn’t bad. As an alternative it can be run outside and through the window. It does require a power socket that is in all the time.


First trip using it was over 2k miles on hills and tight curves and it worked well. A bit bulky though removing and installing in car. Not too heavy.

After a years use I would purchase again. Had one problem with the plasticsteel brake peddle claw attachment swivel ball just breaking off. Called Blue Ox and no problem, mailed me another one. Even offered to mail it to where I was camping.
Leonard - 03/30/2022


Awsome product, would purchase again. Highly recommend! Thanks etrailer!!


Arrived faster than we expected.
not used it yet but cannot wait.
etrailer. is the best. The videos for installation and the specs for each item are spot on with every order.
Awesome company and staff!!!!!


It been a great system, used in two vehicles since purchased. It was an easy transition between them.


system is a bit of a contraption.. sending unit failed and required replacement and chrome arm fell out of the ball joint and needed replacement. Fortunately I am using it in a new Jeep and it sits behind an 50k lbs Entegra Anthem so braking is not much needed. It has been unstable about 50% of the time for me.. Any bad roads where the jeep goes over road damage dislodges the setting position of the patriot and it goes red.

Any replacement parts from Patriot were fast and without question.

Sorry that you are having such trouble with this item. This has a 2 year warranty.
-- Etrailer Expert Sierra K - 08/30/2021


Patriot 3 has worked as described. A good standalone unit and easy to install and use.


After one year of use and multiple trips, I have had no issues at all. Works great in my 2020 Jeep Gladiator.


Easy install by using the etrailer step by step video. Performance is excellent.

2014 Ram 2500

I've had the Blue Ox Patriot 3 for about a year and have towed with it for about 2500 miles. The system has worked great for me with zero issues. The dashboard display is nice in that you can see when and how much force is being applied. Towing a 2014 Honda CRV I set it to 4 - I think that is 1 below the default but in gentle braking I don't care that it brakes at all as the coach doesn't know the CRV is back there.

One thing I highly recommend is a "tell-tale" light that indicates anytime the toad brake pedal is depressed. You can hang from the toad mirror or like mine I built a little wooded stand that I put on the dash. Get a pretty bright one so you can clearly see it in your rear view camera. With the "tell-tale" light you can be sure that the unit hasn't slide around or somehow activated the brake pedal but not reported that to the dash display. I use a Whelen flashing light so it really gets your attention and you know it's not just a reflection on the windshield. It could save you a set of toad brakes!

Jeep Wrangler

This product was easy to install on our Jeep Wrangler. We have used it on several trips over the past year, and the system works. However, it gets a little tiresome hooking and unhooking the brake system every time we use the Jeep. If I had it to do over, I would probably spend a little more and purchase the system that just plugs in when you plug the lights to the motor home. Overall the product works as advertised.


This is my first Braking system so I can’t compare, but this system has worked flawlessly in my tow vehicle, Ford Ranger towing behind our class C motor home. Very easy to set up and adjust. Would highly recommend.


Own product for 1yr now and truly love it it does everything its suppose to, great product!

2018 Fiat 500

Nice and easy to install. Found out, that my 12V plug in my car would not be on unless the ignition was turned on.So I had to install a new 12V plug under the seat direct connected to the battery.


This review is for E-Trailer. I ordered a complete dinghy towing set-up for the dinghy as a towbar came with the RV we purchased. I called E-Trailer and spoke with a very knowledgeable young lady and when I told her what I needed in layman’s terms she came up with what I would need to complete the dinghy preparation in order to safely tow it behind our RV. Everything they said it would do went just as the instructions directed. I ordered a Roadmaster Falcon 2 set up for the dinghy and they suggested a Blue Ox self contained braking system for the SUV itself. hey also suggested the complete wiring system and plug for the dinghy. To my amazement after the RV and dinghy were connected that also was as easy as they said it would be. Our first tow with the dinghy was great and the unhooking was also a very easy experience. This company was awesome to work with. Thank you for your knowledge and great products.


Patriot 3 was easy to set up and works perfectly with my Coachmen Mirada and Honda CRV. Very pleased.

Works very well. No problems!
Peter H - 06/16/2021

Jeep Patriot

Overall, the Blue Ox system has worked out great. I had read a lot of reviews, mostly positive, but some who had some difficulty with the installation, but in my case I had no real difficulty at all. The base plate lined up good, I did use a pry bar to spring it a bit, but nothing major.

Ok, so this review if for the entire Blue Ox base plate, Blue Ox Alpha, Patriot II and Hopkings light kit package. I deviated a bit from the base plate installation procedure. I never used the vice grips, I simply installed the 5/8" bolts, leveled the plate and torqued them up after applying red Locktite. I was able to wedge/slip the spacer bars into position and then I drilled the frame using the base plate/spacer bar combination to keep the drill perfectly aligned. I did not have a 17/32 drill so I simply used a 1/2" drill to start each hole. I then swapped down to a 1/4" drill to punch through the frame and progressively drilled the hole larger until I got to the 1/2" bit. I have a Drill Doctor to keep my bits very sharp so they do not drift or wander. Great tool for your shop if you do not have one. I also drilled the hole toward the rear first. Once that was complete, I installed the rear most 1/2" bolt, Locktite and torqued that bolt. I then started a 1/2" hole using the base plate, swapped to the smaller bit and again progressively drill to 1/2" using the spacer as a guide and installed the front 1/2" bolt with Locktite and then torqued. I can see where if you installed the front bolt first, it would be difficult to reach the rear to get the nut started. I rechecked the torque on all the bolts once installed. Word of caution, the nuts have some "teeth" to bite into the frame when installed. These kind of nuts do not want to be tightened and loosened repeatedly. You want to install them once and go right to tightness. Less risk of breaking the wire that is welded to the nuts because the teeth are initially sharp and will bite into the frame. If you tighten and loosen these nuts the teeth get duller and will not grab very well. The purpose of the wire is only to align the nut with the bolt. I did slightly "kink" the wires on the bolts so the nuts started easily on the threads of the bolt.

To refit the air dam underneath, I simply measured the distance between the left and right side of the base plate and transferred that dimension to the plastic dam. Rather than cut with a knife, I drilled a 1/2" hole in the plastic dam at the bottom end, used masking tape to mark my cut lines and then finished with a fine tooth jigsaw cutting 1/2" slots. Since the base plate is 1/4" thick the 1/2" slots give me a bit of play and look nice and even. I did not take photos yet, but if I can get back here I'll post a few of the finished product.

Among the things I really like about this is how up tight and close the base plate connections are to my bumper. You really do not notice the base plate when you look at the front of the Jeep which to me gives it a nice clean look.

I got a Patriot II remote braking system. It took me longer to route the "break away wire" and switch than to set up the remote control.

The Hopkins brake light package was easy to install and directions were clear. Spent most of my time deciding how to route the wires from rear to front.

Show More Reviews

Ask the Experts about this Blue Ox Tow Bar Braking Systems

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  • Does Breakaway System for Flat Tow Supplemental Braking Need to be Added Separately
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    view full answer...
  • Is Supplemental Braking Really Needed When flat Towing a 2017 Jeep Cherokee
    By law most states now require supplemental braking in the vehicle being flat towed. The easiest system to set up and use is the Blue Ox Patriot # BRK2019, that applies the vehicle brakes in proportion to how much the tow vehicle is braking. This is the safest way to stop and it reduces wear and tear on both vehicles. Some models of the 2017 Jeep Cherokee may use Mortorq® fasteners. If your vehicle has these types of fasteners, you will need a PFMTS2E bit to remove them which can be ordered...
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123. . .92

Do you have a question about this Tow Bar Braking System?

Used Items Available
Used Picture for Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $1,231.95
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Kathleen M
Installed by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Shane H
Test Fit:
Shane H
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Clayton O
Test Fit:
Clayton O
Employee Jonathan Y
Video by:
Jonathan Y
Employee Mike S
Written by:
Mike S

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