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  1. Trailer Brakes
  2. etrailer
  3. Hydraulic Drum Brakes
  4. 3500 lbs Axle
  5. 10 x 2-1/4 Inch Drum
  6. 13 Inch Wheel
  7. 14 Inch Wheel
  8. 15 Inch Wheel
Hydraulic Trailer Brakes - Uni-Servo - 10" - Left/Right Hand - 3,500 lbs - 10 Pairs
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Hydraulic Trailer Brakes - Uni-Servo - 10" - Left/Right Hand - 3,500 lbs - 10 Pairs

Part Number: ETBRK335A
In Stock
$802.85
Trailer Brakes
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Driver's-side and passenger's-side hydraulic drum brakes feature a single-plunger design. Automotive-grade friction pads and e-coated backing plates are long-lasting. Fit 13", 14", and 15" wheels. Great Prices for the best trailer brakes from etrailer. Hydraulic Trailer Brakes - Uni-Servo - 10" - Left/Right Hand - 3,500 lbs - 10 Pairs part number ETBRK335A can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer by AxleTek Trailer Brakes - ETBRK335A

Highlights

  • Reliable Hydraulic Stopping: Uni-servo drum brakes deliver consistent braking power for 3,500-lb axles.
  • Long Brake Life: Automotive-grade friction pads are fully bonded to resist cracking and wear.
  • Ready for Easy Mounting: Left- and right-hand assemblies fit 4-bolt flanges with 10" x 2-1/4" drums.
  • Protected Against Corrosion: E-coated backing plates stand up to rust and road grime.
  • Clean, Precise Adjustment: Fine-tooth gears and included plugs keep dirt out while setting brake tension.
  • Certified Safe Performance: QAI and CSA tested for braking reliability under real-world conditions.

Features to know about

Replace Old, Dragging Brakes: Hydraulic Drum Assemblies Built for Reliable Stopping

If your trailer’s braking feels weak or inconsistent, these 10" hydraulic drum brake assemblies make a solid upgrade. Each unit uses a single-plunger, uni-servo design that delivers dependable braking through a surge-type actuator. The automotive-grade friction pads are fully bonded—not riveted—to the shoes for maximum contact and torque, helping you get smoother, more controlled stops every time.

Built to Last Through Heavy Use: E-Coated Backing Plates Resist Wear and Corrosion

Rust and abrasion can ruin brake performance fast, especially in tough towing conditions. These assemblies use e-coated backing plates that stand up to wear and corrosion, keeping your braking system in good shape longer. The included adjuster plugs seal out dirt and grime so the internal parts stay clean and responsive.

Confident Braking When It Matters: Automotive-Grade Friction Material

Each shoe is custom-molded with automotive-grade friction material for long service life and high braking torque. The tapered edges and circular ground finish help prevent cracking or crumbling, so the brakes stay smooth and consistent even after many miles. SAE-N certification means the pads meet strict environmental safety standards while maintaining high performance.

Straightforward Maintenance: Manual Adjust with Fine-Tooth Gears

When it’s time to fine-tune your brakes, the manual adjusters make it easy to set them just right. Fine-tooth gears let you dial in precise shoe clearance for even braking on both sides. The design fits most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO setups with 4-bolt mounting flanges.

Dependable Build for Multiple Trailers: Certified for Safety and Quality

This set includes 10 left-hand and 10 right-hand assemblies rated for 3,500-lb axles and compatible with 13", 14", and 15" wheels. Each assembly meets CSA and QAI certification standards for braking performance and real-world safety testing—built to perform dependably whether you’re maintaining one rig or assembling several new trailers.

Specs

Quantity

  • Quantity: 10 left-hand and 10 right-hand assemblies

Application

  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO

Dimensions

  • Dimensions: 10" diameter x 2-1/4" wide

Mounting

  • Mounting flange bolt pattern: 4 bolt

Wheel Compatibility

  • Wheel size: 13", 14", and 15"

Weight and Capacity

  • Axle rating: 3,500 lbs

Warranty

  • Limited warranty: 1-year

B10H-41 AxleTek 10" X 2-1/4" LH Hydraulic Brake Assembly - Drivers Side - 3.5K Axles - E-Coat

B10H-42 AxleTek 10" X 2-1/4" RH Hydraulic Brake Assembly - Passengers Side - 3.5K Axles - E-Coat





Video of Hydraulic Trailer Brakes - Uni-Servo - 10" - Left/Right Hand - 3,500 lbs - 10 Pairs
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hydraulic Trailer Brake Kit: The Breakdown

Ratings & Reviews

4.7

323 reviews
5 Stars
(274)
4 Stars
(32)
3 Stars
(6)
2 Stars
(2)
1 Star
(9)
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by:
Parts are great. Shipping not so good. It’s never taken eight days from Missouri to Texas. Maybe should have paid extra for UPS.
by:
The backing plates didn't have any nuts or washers. The existing nuts were a different thread so I had to drive a considerable distance to purchase the correct nuts. I live in the country and nuts should have been provided.
by:
This went into a 30 year old boat trailer. Lost a grease seal and coated the brakes. I wanted to replace everything. I wish I would of bought the hardware with brakes. Would of saved me a 60 mile round trip. Everything went together easy.
Jenny N. profile picture
Etrailer Expert

Jenny N.

1/4/2022

We do have the hardware available. It is part # BRKH10B.

by:
These items were a perfect fit for my 1994 trailer. E trailer is great to work with and I have purchased other items as well.
by:
The shipping was incredibly fast!
by:
Very nice and complete assembly
Package
d well
Easy to install. Thanks
by:
These brake assemblies came to Me looking great, They fit great, work Great, and best of all was the Great Price and the free shipping! 5 STAR's for this Product. Also I want to give a 5 STAR Rating for Your Customer Support, The Fast Shipping Notifications, and the After the Sale Follow up. Keep up the Great Work.
Brian K.
by:
fast shipping and product worked perfectly
by:
Having a pre-assembled brake system is awesome. Saves so much time and aggravation and flinging brake springs at your head. They look great and match the existing system on my Heritage boat trailer exactly. The will be installed this spring, and I expect to order hubs from etrailer in the spring. The etrailer videos for installation are extremely helpful. I am impressed with the whole etrailer customer service model.
by:
Great great service ships super fasts
by:
Parts arrived on the date scheduled, the shipper for some reason couldn't find an address that they had delivered to before, this was not any fault of etrailer.com.
All parts fit exactly as they should have and now hopefully I will not have to fix someone else's neglect again, as shown in some of my pics. But if I do I will use etrailer.com.
Big thanks to Shawn for help above and beyond.
by:
Received the hubs, drums bearings and bearing buddies and installed. The parts were exactly what I needed. A big thanks to Adam for all his help. Will definitely use etrailer again. Many thanks.
by:
Sent me two right ones instead of of left and right ones , can not put right on both side trailer , driver side is left and passenger side is right , hope ya get my order right from now on
by:
Customer service is outstanding!! Excellent value!! I wish there was an etrailer store near me!!!
by:
So far so good. Only a few days since repairs
by:
Everything was great except delivery took almost 2 weeks.
by:
Fast and good
by:
I'm so glad I found etrailer for replacing my boat trailer brakes.
Customer service was absolutely incredible, very knowledgeable and helpful with my needs!! Thank you!
by:
Outstanding product fitment and quality.works perfectly.
by:
The studs that came installed in the backing plate were 1/2" too short. I had to remove the studs. Once that was done the holes were now oversized for my existing hardware. I had to drill the mount on the trailer out to 1/2" diameter and buy new hardware.
by:
Installed in minutes on my 35 year old boat trailer . Better fit than OEM. Excellent price.
by:
I thought everything was good everything fed up well thanks for your service
by:
The parts were excellent. Lacking the eight bolts needed to secure the unit. Was disappointed in that
by:
Exactly as described, fast shipping.
by:
Already arrived. Typical etrailer service. Always satisfied.
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C

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