To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Clunky brake boxes can crowd the driver’s side, but this controller mounts flush to the dash and is only 1" thick. The compact housing tucks neatly under the dash using the included bracket and hardware, so it looks clean and stays out of the way. The controls are simple—two rocker switches for gain and load, a pinch trigger for manual override, and a bright LED display that’s easy to read at a glance.
With an internal 3-axis accelerometer, braking feels balanced and natural. The controller senses how hard your tow vehicle slows down and matches that effort so your trailer brakes in sync. No jerky push-pull feeling—just smooth, even stops whether you’re cruising flat highways or heading downhill. It works with up to 4 axles (8 brake assemblies) and supports electric trailer brakes for consistent performance.
You can dial in exactly how much braking power you need for your trailer weight. Gain adjusts on a scale of 0.5 to 9.9 in 0.5-step increments using the gray rocker switch. Then the black rocker switch lets you set load control from 1 to 9 to change how aggressively the brakes reach full power. Together, these settings give precise control—light braking when unloaded or strong stopping power when fully loaded.
The TriFlex NEXT continuously monitors for shorts or wiring faults and protects against reverse polarity to keep your system safe. During long stops, it automatically reduces power output to prevent trailer brakes from overheating. After five minutes of inactivity, it enters sleep mode to minimize battery drain, then wakes instantly when you press the brake pedal.
The included custom adapter harness connects directly to your vehicle’s factory brake control port under the dash. Just plug one end into the port and the other into the TriFlex NEXT—no splicing or extra wiring required. Automatic leveling means it can mount at any angle while still working accurately, making setup straightforward from start to finish.
Alternate Instructions
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Eric
8/27/2025
Still in service after a year. Works perfect and easy to install.
Do you have a question about this Trailer Brake Controller?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Kenny
9/6/2017
ITS BEEN A YEAR SINCE INSTALLATION, ITS BEEN IN THE SAME LOCATION, HAVENT HAD ANY PROBLEMS! GREAT PRODUCT, GREAT PRICE!