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The TriFlex NEXT senses how hard you’re braking and applies your trailer brakes to match. Its internal 3-axis accelerometer delivers true proportional control—light pressure gives you gentle braking, a hard stomp gives you full power. That balance keeps your whole setup moving as one, cutting out the push-pull feeling and reducing wear on tires and pads. It works with electric trailer brakes on up to 4 axles (8 brake assemblies) and handles everything from slow traffic to steep grades with ease.
Most brake controllers take up space under the dash or stick out awkwardly. The TriFlex NEXT mounts flush and is only 1" thick, so it fits tight against the panel without crowding your knees. Automatic leveling means you can mount it at any angle, and the included bracket makes installation simple. The under-dash box stays out of sight while keeping the manual override trigger easy to reach when you need it.
You can dial in the exact braking feel you want using two simple rocker switches. Gain adjusts the maximum power from 0.5 to 9.9 in 0.5-point steps, while load sets how aggressively the trailer reaches that max power on a scale of 1–9. It’s quick to tune—heavy trailers get more gain for confident stopping, lighter setups can back it off for smooth control.
The LED display is bright, easy to read, and simple to understand at a glance. It shows braking power, sensitivity, and error codes in plain text for quick troubleshooting. You can adjust brightness or use night mode so it doesn’t glare on the dash after dark. Built-in continuous diagnostics help catch wiring or brake issues before they turn into problems on the road.
The TriFlex NEXT is designed to protect itself, your vehicle, and your trailer from electrical issues. It guards against shorts and polarity reversal, cuts power during prolonged stops to prevent overheating, and automatically enters sleep mode after five minutes of inactivity to minimize battery drain. The moment you hit the brake pedal again, it wakes right up—ready for the next tow.
Alternate Instructions
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
I needed an electric brake control for my 2006 Dodge pickup but was having trouble finding one locally that would plug in to the factory installed plug. If it was a Chev or Ford it was in stock and I didn't want a universal that would have to cut into the wiring. I called etrailer to make sure what I saw on their website was correct and they assured me it was so I ordered it. It arrived, I instaled it and it works perfect.
In hind sight I probably didn't need to order this item. Forgetting how difficult it was to access the connector on my Dodge Ram when I installed my first (now defunct) brake controller, I imagine it will be a greater struggle to get it to disconnect before putting the new one on. So I think what I'll do is cut the Dodge specific connector off the one end, cut the wires off my old controller and splice this pigtail into it, thus eliminating the need to remove the old connector!
Jeff M.
9/25/2018
My splice job worked as planned however I no longer own that vehicle.
I’ve use the electric brake system several times over the last year. I was impressed at how easy it was to use, and how much safer it was when braking. It was easy to install and worked great
I ordered a fifth wheel brackets and hitch along with curt brake controller and pigtail. Everything fit great with no problems and the service and shipping was very speedy. Highly recommend etrailer for all your needs.
Easy to install, had no glitches. Replace an older brake controller.
All the information I needed was on your site. Got the correct adapter cable and was able to just plug in the controller.
Easy to install and use. I would recommend getting one.
Works great. Very easy install.
This unit took less than 10 minutes to install and works flawlessly with my Grand Cherokee while pulling a Travel Trailer. Plus its low profile design made it easy to install by the hood release so I don't have a big box and display on top of my dashboard. Great product at the right price. Highly recommend this brake controller and etrailer.
Works well. The connector I got from e trailer which fits other older model Audi’s wasn’t listed to fit the 2024 Audi but fit perfectly. The Curt Triflex is an easy to use brake controller. Highly recommend!
thank you Carter for the help selecting the correct piece I needed.
You saved us both!!
Nothing but good things to say!!
The controller works very well, and the wires included works perfectly in my 2002 Dodge diesel. The price was decent and the shipping was fast…
The only reason I can’t give it five stars is because the LED lens is rubbed/scraped badly. It doesn’t affect how well it works, but it’s really annoying when you buy a new product and it’s damaged? (Bummer)
Great brake controller for the price. Easy to install with the video. Customer service was very prompt and kind.
Perfect fit for my 1999 Dodge Ram. it made installation of the brake controller super easy. I highly recommend paying the extra $** for this item.
Arrived as planed and was much smaller then my old clunky one. The custom cable harness was easy to install. Finding a flat spot to mount the controller took the longest to find the perfect spot. I gave a five stars because every was as it said. (Plug and play)
It does not fit my vehicle. On the attached photo the connector on the left is the stock dodge plug, the plug on the right is what I just got
Brooke M.
8/23/2023
Hmm...youll be looking for another white plug like the white harness. Do you know if your truck for sure has the factory tow package?
This item easily plugged into my Curt brake controller and into my truck’s factory plug. Made for a less than 5 minute install; powering up the brake controller with no issues. Convenient is an understatement with this pigtail. Rig is 2007 Dodge Ram 2500 4X4 CTD.
Simple installation 2004 Dodge Ram 1500 Total Installation took about 45 minutes and that’s with Installing wire loom to give it a clean look
Easy install and straight forward adjustment. Good instructions and like the additional reference card to keep handy.
Poor quality stopped working after 1 month of use.
Took a while to figure it out. Have a 2003 Dodge van. Had to tow in package but didn’t have any wiring factory installed other than for the seven way. Paul it was great identifying what I need and sending it to me. Thank you very much.
Sorry for the late follow-up. I just wanted to let you know that the brake
controller and wiring harness I purchased through eTrailer worked very well
with my 2008 Dodge Ram 2500 with the Cummins 6.7L diesel. Pictures are
attached for your use, as required.
The trailer was an 18-foot enclosed snow machine tailer with a steel
chassis. I can't remember the empty weight, but it's substantial. We towed
empty and full on dry and snow covered roads from Oklahoma to Colorado and
back. Even with th exhaust brake on my truck, I can't imagine towing this
load through the hills and mountains without a brake controller. It's been
done before, but I would say it's an unnecessary risk given the more than
reasonable prices at eTrailer...it was cheap insurance pulling such a heavy
rig with my family on board.
The controller was definitely not your top-of-the-line model, but the
adjustability and controls were more than adequate for somebody who tows
occasionally. A professional may desire more proportional controls and
adjustability, but not much more. This unit peformed flawlessly.
Thank you for your time. Please feel free to contct me if you would like
any clarification on my statements or pictures.
This is a new model of the Curt TriFlex brake controller. As a replacement for the previous unit, it was nice to be able to install it without rewiring. The new model has a more modern style digital display that is easier to read and less annoying. The button controls are a bit less obvious than the previous model, so it takes a little effort to figure out how to adjust the system. Overall, I think it's a better unit that the previous models.
Great controller. Love the compact design and the plug and play wiring kit worked perfectly. Simple to use and easy to read. Really like the mount for it. Overall, best bang for the buck compared to other controllers.
Says compatible for my tundra and didn’t even have the pigtail adapter. You would think with the cost it would be included.
Need to pick my trailer up tomorrow and now need to buy a completely different brand.
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Michael D.
7/16/2017
Still working fine.