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This actuator is built for real stopping power. With a 7,500-lb capacity and a hydraulic system designed for disc brakes, it syncs up with your trailer’s brakes as soon as your tow vehicle slows down. The actuator telescopes smoothly to apply pressure to the aluminum master cylinder, giving you consistent braking when you’re hauling heavy loads.
Backing up on a ramp or driveway is easy thanks to the integrated electric lockout. The solenoid activates automatically when you shift into reverse, stopping the trailer brakes from engaging. You can move backward without fighting the brakes or needing to add extra parts.
The low-profile coupler latch gives a clean, solid connection on a 2" hitch ball. The over-center latch design only engages when the actuator is fully seated, so you know it’s locked in right before hitting the road. It’s built to stay connected even over rough ground or steep grades.
This unit comes primed and ready to weld onto a 3" x 3" or 3" x 4" straight tongue. Since it’s not painted or assembled with delicate finishes, you can weld it directly in place, then paint everything to match your trailer once it cools. It’s a clean setup for builders who like doing things right from the start.
The aluminum master cylinder holds up against rust and wear better than cast steel versions. It keeps your braking system cleaner and helps prevent corrosion inside the cylinder, even if your trailer sees wet or humid conditions. It’s a small detail that makes a big difference over time.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Great service getting the rite parts
Fits well and works as it should
Perfect replacement for the same item that wore our after 12 years of use. Simple install. Remove the old actuator - unhook the brake line (which I was afraid would leak, but doesn't,) unhook the blue wire from the solenoid, pull the two pins, and pull it out. Reverse the process to install the new one.
Only question was, where does the white wire on the new unit go? Old unit did not have a white wire. Answer is that it's a ground, so just find a ground and hook it up.
Of course, you must now bleed the air out of the lines, but anyone who is tackling this job themselves has probably bled brakes before.
PS. I bought this unit, which comes with the primed steel outside piece, because it was cheaper than buying the internal unit by itself.
Original item went on back or
Easy to install and a perfect fit.
Part received fast and already installed. Works great
Ashley was great to work with promptly processed the order and received it in 2 days great service
Nice product
I have not got it on the trailer yet can't wait to use it it looks awesome hope it works as good as it looks
It was exactly what I needed for my MASTERCRAFT boat trailer. I pulled the old one out and slid the new one in. Very easy to do
Just what I wanted. I am building a custom trailer for my vintage boat. I have used these actuators in past projects. etrailer has great pricing and fast delivery every time.
Bought this for my 1995 Mastercraft Boat trailer. Works great, wasn't worth rebuilding the 30 year old unit. The solenoid to disable the brakes when backing up is awesome!
Info for this part was:
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Brooke M.
6/24/2025
Glad to hear that, Ryan :) Do you get to go out on the water very often for any wakeboarding?