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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 - Dacromet - 10" - Left/Right Hand - 3.5K - 10 Pairs
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Hydraulic Trailer Brakes - Uni-Servo - Dacromet - 10" - Left/Right Hand - 3.5K - 10 Pairs

Part Number: ETBRK335DA
In Stock
$852.61
Trailer Brakes
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Marine-grade, driver's-side and passenger's-side hydraulic drum brakes have single plungers. Automotive-grade friction pads are long-lasting. Dacromet-coated backing plates are extremely corrosion resistant. Fit 13" to 15" wheels. Great Prices for the best trailer brakes from etrailer. Hydraulic Trailer Brakes - Uni-Servo - Dacromet - 10" - Left/Right Hand - 3.5K - 10 Pairs part number ETBRK335DA 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 - ETBRK335DA

Highlights

  • Ready for Long Hauls: Marine-grade Dacromet coating resists corrosion for lasting use in saltwater or snow.
  • Smooth, Reliable Braking: Automotive-grade friction pads are fully bonded for strong, consistent stopping torque.
  • Built to Last: Stainless steel springs and aluminum cylinders fight rust and wear over time.
  • Precise Adjustment: Fine-tooth gears let you manually dial in accurate brake shoe clearance.
  • Keeps Dirt Out: Included adjuster plugs cover access holes to protect shoes from grime buildup.
  • Rated for 3,500-lb Axles: 10" x 2-1/4" brakes fit 13"–15" wheels with standard 4-bolt flanges.

Features to know about

Replace Aging or Rusted Brakes: Marine-Grade Hydraulic Assemblies with Dacromet Coating

If your trailer brakes are worn or corroded, these 10" x 2-1/4" hydraulic drum brake assemblies are a direct, heavy-duty replacement. The Dacromet-coated backing plates stand up to saltwater and harsh weather, while stainless steel springs and aluminum cylinders resist rust. They’re tested and certified by QAI and CSA for safe, consistent braking under real-world conditions.

Built for Wet or Salty Environments: Corrosion-Resistant Marine Design

Boat and snowmobile trailers need brakes that won’t crumble after a few launches. The Dacromet finish on these assemblies offers superior corrosion resistance, and the stainless hardware keeps everything moving freely even after repeated water exposure. This setup is durable enough for long-term use in saltwater and other tough environments.

Smooth, Reliable Braking: Automotive-Grade Friction Material

Each shoe uses automotive-grade friction material that’s fully bonded—not riveted—to the brake shoe surface. The taper and circular grinding of the lining help prevent cracking or crumbling that can cause lockup. SAE-N certification ensures the material meets environmental standards while providing strong braking torque and long wear life.

Precise Adjustment When You Need It: Fine-Tooth Manual Adjusters

These single-servo brakes use fine-tooth gears so you can dial in exact shoe contact for consistent performance. Adjuster plugs cover the access holes to keep dirt out, ensuring smooth operation over time. Once set, they deliver dependable braking with minimal maintenance.

Ready for Multiple Builds: Complete Left and Right Pairs Included

Each package includes ten left-hand (driver’s-side) and ten right-hand (passenger’s-side) assemblies—ideal for building or outfitting multiple trailers. They fit most standard hub-and-drum setups, including Dexter, Lippert (LCI), and AL-KO designs with a 4-bolt mounting flange pattern for 13", 14", or 15" wheels on 3,500-lb axles.

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-63 AxleTek 10" X 2-1/4" LH Hydraulic Brake Assembly - Drivers Side - 3.5K Axles - Dacromet Coat

B10H-64 AxleTek 10" X 2-1/4" RH Hydraulic Brake Assembly - Passengers Side - 3.5K Axles - Dacromet Coat





Video of Hydraulic Trailer Brakes - Uni-Servo - Dacromet - 10" - Left/Right Hand - 3.5K - 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 Detailed Breakdown of the Hydraulic Trailer Brake Kit

Ratings & Reviews

4.7

198 reviews
5 Stars
(166)
4 Stars
(21)
3 Stars
(2)
2 Stars
(2)
1 Star
(7)
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by:
I really can't believe how good these brakes are. I unbolted my old backing plates and installed these and even the brake line was exactly in the perfect spot as the original. I am impressed. Highly recommend
by:
Good morning the product I ordered was a good investment for my trailer. It is a 1988 Buccaneer 30+Ft trailer and it's really heavy & requires the additional brakes that I'm added onto it.
It is that much more heavier with my boat and motor and equipment on it. At first I was just going to piece the order the brakes and hardware and it just didn't make any sense it was just better to order the entire kit knowing that the parts were going to come in New and I didn't have to put together anything other than mounting the unit to the bracket. I also ordered the drum cap or cover which comes with bearings and the brake cap so all in all I'm extremely happy with my purchase just remember to look closely ordering these brakes they come in pairs and that's something that I misread and luckily they were willing to take the units back without me paying for reshipping or any restocking fees. I dealt with a few different people on getting them returned and I appreciate the customer service that they provided me on both ends on the order and on the return of the six drum brake kits.
by:
part fit great and seems to be working good for now little harder to get to a couple of the nuts with the studs already on the backing plate because the nuts and to go on from the back barely enough room had to finish the two nuts with open end wrench only thing I could get on them but I got it done seems like good replacements
by:
They fit my 1994 trailer perfectly. And were really easy to install.
by:
should sell with the nuts to bolt it on. can't just get them at a handwear store!
by:
When I looked on the website, this item was listed only for 14, 14 1/2, and 15 inch wheels.
I talked to order desk, no help. I have 13 inch wheels. I took a chance and ordered. These fit my 10 x 2 1/4 drums perfectly. Nice anti-corrosive finish. My previous brakes installed with 7/16-14 bolts, these came with 7/16-20 pressed in studs. It would have been nice to include nuts and lock washers to ease installation.
by:
I am giving the parts a 4 star rating because they didn't come with the 7/16-20 nuts needed to install them mine were rotted so I couldn't reuse them and a 7/16-20 is a really hard size to find. Otherwise the assembly fits fine and looks good,and good quality. Now the shipping was a diffent story I would give the shipping 3 stars their kitting process needs improvement. I ordered them April 28th they didn't kit them and ship them until may 11th even with them listed as in stock some kitting improvment is needed. So make sure you are not in a hurry to receive this kitted item. Allow about a month for delivery.
by:
Excellent fit! Easy to install and kit came with everything you need! I replaced my old worn out brakes. Trailer stops perfect now! Thanks etrailer.
by:
Ordered complete brake kits for a tandem boat trailer. Order received within 48 hours of placing the order on line. All parts present and exactly as described. Parts fit perfectly.

Job completed within 4 hours.
by:
Exactly what I wanted
by:
Inner bearing requires a l68110 was sent l68111 and the grease seal was tonlarge
Brooke M. profile picture
Etrailer Expert

Brooke M.

7/21/2025

Hey James! Let me make sure this gets taken care for you!

by:
Product fit perfect.
by:
Like the coating,good quality for the money.
by:
Fits and works perfectly
by:
Parts arrived quickly and in great shape. Ordering was easy. would have been nice if nuts were included for the mounting studs as my old units used nuts and bolts which are not the same.
by:
Customer service was very helpful getting me the right parts. Thanks!
by:
Worked for what I needed. Packaged very well
by:
Got the new brakes you guys are great only took a couple day to get them will be back on the water soon.
Forrest profile picture

Forrest

9/5/2021

Still working great would buy them again.

by:
I needed new brakes for my boat trailer. After searching several suppliers for quality and pricing I found etrailer to have both qualities. I used these backing plates and their complete braking system including drums and brake lines to bring new life to my trailer. I am very satisfied and safe on the road again. Etrailer is my frist choice for trailer parts.
Joe B. profile picture

Joe B.

1/14/2020

My new Etrailer braking system has been worki g flawlessly since installed

by:
Since I am going back to the original surge brakes… These are perfect replacements for the electric brakes that I have now… Thank you
by:
Easy to install
by:
Installation and adjustment was straight forward, mounting bolts lined up perfectly as did brake lines. Brass bleed screws sealed well, and I now have functional brakes on my boat trailer again.
Robert profile picture

Robert

2/1/2022

After a year of trailering our boat, these brakes are performing great. With todays traffic, I enjoy reliable trailer brakes more than ever. No noise, grabbing or other issues. Good product!

by:
This is an exact fit to the discontinued brake system that I had. It was easy to install and it looks like very good quality. I have no problem recommending this to anyone that is in need to replace their brakes or building there own trailer.
Mitch profile picture

Mitch

9/14/2021

The brake system a year later still works like the day i installed it. Ive never had to add fluid or adjust them. Very happy with the system.

by:
Order shipped promptly and arrived on time and in good condition. Installation was easy. Resolved issues with wheel cylinders and brake shoes with quick 4 bolt installation.
William W. profile picture

William W.

3/15/2018

Product continues to perform as expected. Very pleased.

by:
It was easy to locat the correct part I needed on their site, even with my trailer being almost 30 years old. Parts arrived as described and bolted right on and worked perfectly.
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Employee Lindsey S
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