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If your trailer still has worn drums or brakes that drag, these etrailer 10" x 2-1/4" electric assemblies make a big difference. They bolt right onto a standard 4-bolt brake flange and fit 13", 14", and 15" wheels on 3,500-lb axles. Each assembly comes ready to mount, with a left- and right-hand side included, so you can replace both brakes in one go. Once installed, they deliver smooth, even braking without the hassle of hydraulic lines or actuators—just connect to an electric brake controller and hit the road.
Older drum brakes need routine manual tweaks to keep up their stopping power. These self-adjusting brakes handle that automatically. As the pads wear, an internal tension cable keeps the shoes in proper alignment so they always contact the drum evenly. That means consistent performance trip after trip and no more crawling under the trailer to fine-tune adjustments.
The friction pads use the same SAE-N certified material found in automotive drum brakes for reliable braking torque and quiet operation. Bonded—not riveted—pads eliminate the metal rivet noise when shoes wear down and give more friction surface for stronger stops. Their tapered edges also help prevent stutter or lockup as they wear, keeping braking smooth and predictable.
Moisture and dirt can ruin backing plates over time, but these assemblies are built to last. The e-coat finish resists rust and corrosion caused by road grime or saltwater spray. Included adjuster plugs shield internal parts from debris, helping the brakes stay clean inside and ready to perform when needed.
Each assembly meets QAI, CSA, and SAE-N performance certifications for safe use on highways throughout the U.S. and Canada. The result is a dependable set of trailer brakes that stay balanced, self-maintaining, and ready for long hauls or everyday towing.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Richard
1/12/2026
Excellent, put lots of miles on the trailer and the trailer brakes have never worked better
Fran
6/3/2024
The self-adjusting trailer brakes are great. After I installed them and had the wheels back on, I had a compulsive urge to take the dust covers off and begin turning the star-nut and adjust them. But, I resisted and after about a ten mile test drive with many traffic lights and a spin on the freeway, the brakes work great. There is no need to turn the star-nut by hand. It self-adjusts.
Jason
10/18/2023
Its been a year and a day since I last posted how happy I was with these brakes I purchased. I wish I could say that Ive taken this 1968 completely rebuilt from the ground up camper on a trip, but I cant. Im not done yet. I can tell you that I did hook up to the truck with the camper jacked up and was able to test the brakes and they worked perfectly. I also adjusted them because I had initially set them loosely to fit right on. Adjusting them can be sort of tricky, but etrailers videos are very helpful and I was able to set them just right. I would have been totally done this summer, but getting a new VIN number is currently in the works as well as curtains and cushions. Rebuilding old campers is not for everyone, but finding etrailer early on for me was another tool in the arsenal. Good luck everyone with your projects. Theres nothing like getting it done yourself.
Mike L.
11/9/2023
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Gwendolyn Y.
1/15/2025
Hey Richard. I'm glad we could get the brakes to you even through blustery weather. Thanks for always sticking with us. See ya on your next project.