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.
The Dexter DX Series actuator gives your trailer disc brakes the stopping power they need. With up to 1,600 psi of hydraulic pressure, it reacts the instant your brake controller sends a signal—no waiting for the trailer to push against the hitch. Braking feels smooth and balanced, even on steep grades or in wet weather. Because the actuator is fully electric-over-hydraulic, it works seamlessly with most proportional brake controllers to match your vehicle’s brake effort for steady, confident control.
A vented design keeps the internal pump cool by shedding heat and moisture while you’re towing. The aluminum housing and stainless steel fasteners resist corrosion, so it’s right at home around water or road spray. You can mount it in tighter spaces where other actuators might overheat, and the Goretite seals keep dust and moisture away from the circuit board for long-term reliability.
The self-priming pump saves time when bleeding your brakes by automatically drawing fluid through the lines. It also stops brake fluid from draining back into the reservoir when idle, keeping your system ready to go. The large reservoir holds enough fluid for single-, tandem-, or triple-axle trailers, so you don’t have to worry about running low under heavy braking.
Inside the DX Series is an electronic proportional valve that regulates pressure for even braking across all wheels. Enhanced wiring protection monitors electrical current and shuts down safely if a surge or wiring fault occurs. That means you get full braking force when you need it without risking damage to the actuator.
The unit installs directly on your trailer frame and connects to standard 12V DC wiring using 3/16" brake lines. It uses a 7-way connector (sold separately) to link with your brake controller, and color-coded wires make hook-up straightforward—black for power, blue for controller signal, yellow for breakaway, white for ground. Sized at 11" long x 6" wide x 7" tall with 2-1/2" hole spacing, it fits easily into most frame layouts while leaving room for airflow around the vents.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Jerry B.
10/19/2026
Thanks for the update! Since your actuator runs when you apply 12V directly, it sounds like the issue may be with the brake controller signal or wiring. That 1V reading could be misleading since your factory controller uses a pulsed signal. I'd recommend testing the brake output at the truck's 7-way using the manual override, then checking it at the actuator to see where the signal is being lost. Before replacing the controller, did you apply 12V directly to the actuator's blue brake wire or its main power wire? That'll help us narrow things down!
Doctor F.
7/26/2019
Every trailer should be set up like this! Imagine power disc brakes on the trailer, just like your car. Theres a reason that drum brakes arent used anymore. Trailer manufacturers are just too cheap to build then right. Heres your opportunity to fix that!
Art
5/28/2016
Unit works well, Im very pleased with it.
Brad F.
10/16/2023
Brakes are still working great. I have a 9k skidsteer on a 14k dump trailer that I haul with my F150 and have now worries about being able to stop.
Mike L.
11/8/2023
Chris T.
11/3/2024
I had a problem with the actuator in the summer that I diagnosed was a faulty unit. E trailer sent a new unit free of charge and got me back on the road. Thank you E trailer again for the great service.
Terry
4/28/2022
Yes the brake actuator is working very fine. Easy to install.
Terry
4/28/2022
Yes the brake actuator is working very fine. Easy to install.
George
4/3/2019
Works better then the original
Do you have a question about this Brake Actuator?
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.
David M.
1/15/2026
Well, it has been another year and the brake actuator is still working fine.