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Hydraulic Trailer Brake - Uni-Servo - 10" - Right Hand - 3,500 lbs

Hydraulic Trailer Brake - Uni-Servo - 10" - Right Hand - 3,500 lbs

Item # AKUBRK-35R
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Hydraulic Trailer Brake - Uni-Servo - 10" - Right Hand - 3,500 lbs RH AKUBRK-35R
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Passenger's-side hydraulic drum brake features a single-plunger design. Automotive-grade friction pads and e-coated backing plate are long-lasting. Fits 13", 14", and 15" wheels. Call 800-298-8924 to order etrailer accessories and parts part number AKUBRK-35R or order online at etrailer.com. Free expert support on all etrailer products. Guaranteed Lowest Price and Fastest Shipping for Hydraulic Trailer Brake - Uni-Servo - 10" - Right Hand - 3,500 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (84)
  • Q & A (9)
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etrailer Accessories and Parts - AKUBRK-35R

  • Trailer Brakes
  • Hydraulic Drum Brakes
  • etrailer
  • Brake Assembly
  • 10 x 2-1/4 Inch Drum
  • RH
  • Single Servo
  • 3500 lbs

Passenger's-side hydraulic drum brake features a single-plunger design. Automotive-grade friction pads and e-coated backing plate are long-lasting. Fits 13", 14", and 15" wheels.


  • Hydraulic drum brake assembly is designed for use with a surge-type trailer brake actuator
  • Automotive-grade friction material is molded to brake shoes
    • Pads are fully bonded - not riveted - to shoes for long life and more braking torque
    • Less chance of cracking and crumbling that can lead to mechanical lockup, thanks to tapered edge and circular grinding
  • Periodic manual adjustment required
    • Fine-tooth brake adjustment gear allows for a more precise setting
  • E-coated backing plate resists wear and corrosion
  • Single plunger design
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assembly and off of the shoes
  • Brake mounting bolts are included
    • Nuts and lock washers (BRKH10BS) sold separately
  • QAI and CSA certified


  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO
  • Configuration: right hand (passenger's side)
  • Dimensions: 10" diameter x 2-1/4" wide
  • Mounting flange bolt pattern: 4 bolt
  • Wheel size: 13", 14", and 15"
  • Axle rating: 3,500 lbs
  • Limited 1-year warranty

This trailer brake assembly acts as part of your trailer's hydraulic braking system. A hydraulic trailer brake actuator is required for this brake to function.

Thoroughly Tested for Safety

This brake assembly meets the requirements for certification by the Canadian Standards Association (CSA). The CSA creates standards, which when complied with ensure a safe and quality product. This brake assembly underwent extensive testing to measure stopping distances when braking. This brake has also been tested by QAI for braking performance in a complete automotive setup and under real-world conditions to provide the most realistic scenario for the everyday driver.

Automotive-Grade Friction Material

Each shoe on this brake assembly is lined with automotive-grade friction material for improved stopping performance and longevity. The friction material is fully bonded onto the surface of the brake shoe. This lining is custom-molded for a perfect fit. The edges are tapered to ensure long-lasting performance. This taper, along with the circular grinding that the lining undergoes, helps to prevent cracking and crumbling. This durability helps to prevent mechanical lockup, which can occur when brake shoes are excessively worn or broken.

The friction material is also SAE-N certified, which means that it is an environmentally safe product that complies with California and Washington regulations regarding the composition of brake pads. As a result, this material not only provides high-performance braking that can endure the test of time, but it is also environmentally friendly and safe for use throughout the United States and Canada.

Compare to Dexter 23-313

12-784 AxleTek 10" X 2-1/4" RH Hydraulic Brake Assembly - Passengers Side - 3.5K Axles - E-Coat

Customer Reviews

Hydraulic Trailer Brake - Uni-Servo - 10" - Right Hand - 3,500 lbs - AKUBRK-35R

Average Customer Rating:  4.9 out of 5 stars   (84 Customer Reviews)

Passenger's-side hydraulic drum brake features a single-plunger design. Automotive-grade friction pads and e-coated backing plate are long-lasting. Fits 13", 14", and 15" wheels.


My items came very quickly and were reasonably priced, making my brake rehabilitation project affordable and completed already. 801825


Got it in 2 days took me 45 min to install price is cheaper then others 718694


The brakes installed without any problems. Such a great price for a perfect fit. 607418


Perfect fit, easy installation 550047


Fit right on my axles. Much cheaper than rebuilding old brakes! Now I need to repair brake lines. Picture of old brake. 539003


Great product fairly easy to install and easy to adjust. Worked so well I am buying the left hand side to do as well to make them both new. 529184


We had a problem with our order, primarily because of some bad information from another trailer parts store, but customer service was extremely helpful and we were able to get the correct part very quickly. Thanks, etrailer, for being so helpful and on top of things. We won't order from anyone else in the future. 511277


good job 489819


To whom it may concern, Loved the product, complete and easy to install, should send new nuts with it ( ad to package price ) Mel S 463226

Everything seems to be working just fine. ! Thanks for asking.
Melvin S - 12/28/2018



Fit right in Fast Shipping Decent quality, especially considering the price. 445552


great product fit like a glove 439417


Parts came to the house fast and bolted right up had the trailer back together in about 10 mins. 435555


Awesome service placed order on Sunday afternoon and selected standard shipping and was up graded at no charge and had my brakes Tuesday afternoon. Got exactly what I ordered sooner than expected, that's always great. 423867


Excellent service ! Chrissy was most helpful and great to work with. She kept me updated with shipping info. I originally tried to get the parts through Trailer World where I bought my trailer, but that was disastrous and a horrible waste of time. Thanks for your help and prompt shipping. 411327


My whole order came fast products looked awesome fit great up and running end of day 389569


parts came within 3 days. fit right on my boat axle. would use them again+++++ 383518


Good God..reliable products, fast service and great people...why would you go anywhere else??? 376494


Great product. Incredible price. Right on time. Local marina wanted 2x the price for just the brake shoes. Etrailer got me the entire assembly fast and low cost. 376011


Parts arrived in excellent condition,fast shipping and I found the pricing was very reasonable. Looking forward to assembling. Will go to Etrailer first for all my needs. 372744


Exact replacement for my trailer with 3500lb. axle. Fit and finish are great, and easy to adjust and bleed the brake cylinder. Would recommend, and would definitely buy products from etrailer.com again. 319718


have not installed yet but look like a perfect fit 294039


These hydraulic surge brake backing plates bolted right up and work great, I purchased both sides. I can now tow knowing that my brakes are working at 100%. 279378


This fit my Shoreland,r boat trailer.Only problem the mounting studs came in fine thread, not the course one,s on the trailer. May want to get 7/16 fine before installing , otherwise happy with the job. 268639


This fit my Shoreland,r boat trailer.Only problem the mounting studs came in fine thread, not the course one,s on the trailer. May want to get 7/16 fine before installing , otherwise happy with the job. 268637


Review from a similar Uni Servo 10 Inch in Accessories and Parts

Very easy install the left side was a little tight with studs included 274500

Show More Reviews

Ask the Experts about this etrailer Accessories and Parts

  • Will the 10" Hydraulic Trailer Brakes Fit a 2004 EZ Loader Tandem Axle Boat Trailer
    In order to determine if the Hydraulic Trailer Brake part # AKUBRK-35R for right hand side or part # AKUBRK-35L for left hand side will fit your 2004 EZ Loader Boat Trailer you will first want to confirm that you have hydraulic brakes which is more than likely the case. Then, you will want to know your axle capacity which can be found on the centerline of the axle. These assemblies are rated for use on axles up to 3,500 lbs. Once the axle capacity is confirmed you will then want to measure...
    view full answer...
  • Recommendation for Hydraulic Trailer Drum Brakes and Coupler on 1999 Shorelandr Boat Trailer
    The surge brakes on your 1999 Shorelandr boat trailer can be replaced with the Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs # AKFBBRK-35-D. The Atwood surge coupler is no longer available and neither are the replacement parts. My recommendation is to replace your entire coupler with the Demco Hydraulic Trailer Brake Actuator - Drum Brakes - Zinc Plated - 2" Ball - 6,000 lbs # 8605001.
    view full answer...
  • For Dual Axle Trailers Does it Matter Which Assembly Goes on Front Axle or Rear Axle?
    No. There won't be a difference in the # AKUBRK-35R from front to back, but there is a difference between the Left and Right Hand assemblies. This particular brake is for the right hand side (passenger) of the trailer. The corresponding brake for the driver's side would be # AKUBRK-35L or you can buy the complete set with # AKUBRK-35. For dual axle trailers you'll need 2 of each assembly as well as 2 sets of mounting hardware (lock washers and nuts) # BRKH10B since these brakes do not come...
    view full answer...
  • Solution for Needing New Brake Pads for 1996 Stratos Duel Axle Boat Trailer
    To pick out replacement brake pads I'll need to know the brand of the brake assemblies you have to see if we can get you setup with replacements. Or if you'd be willing to replace the assemblies I would just need the size of the assemblies or the axle capacity and we can pick them out much easier. Due to the age of your trailer it will probably be easier to go by assemblies. Often times they assemblies aren't that much more than the shoes/pads too we've found. You will want to measure...
    view full answer...
  • What Is the Torque Spec for 4 Mounting Bolts Used to Install 10" Trailer Brakes
    The nuts on 10" hydraulic brake assemblies, like part # AKUBRK-35R, should be torqued between 45-70 foot lbs. A torque wrench is recommended to tighten down the nuts to the correct specs. But, if you don't have one on hand, tightening them down until the washer is flat should get you within the recommended torque spec range.
    view full answer...
  • Free Backing Hydraulic Brakes for a 3,500 Lb. Axle
    The Hydraulic Trailer Brake Kit part # AKUBRK-35 (part # AKUBRK-35R + part # AKUBRK-35L) does not have a free backing design. They have a single servo design which means you would need a reverse lockout on your trailer coupler in order to reverse the trailer. Instead, you will want to use the Hydraulic Trailer Brake Kit part # AKFBBRK-35 which does have a free backing design and will allow you to reverse without a reverse lockout.
    view full answer...
  • Recommended Hubs and Hydraulic Brakes for Timbren 3,500 Pound Axle-Less System # ASR3500S04
    For hub drums that will work perfectly with the Timbren 3,500 Axle-Less System # ASR3500S04 referenced in your question I recommend the etrailer.com # AKHD-5475-35-K. These hubs are compatible with the spindles on the Timbren system and their 5 on 4-3/4 inch bolt pattern will fit your existing wheels. Then for hydraulic brake assemblies that will work with these hubs I recommend the etrailer.com # AKUBRK-35R for the Right Side and # AKFBBRK-35L for the Left Side. These particular assemblies...
    view full answer...
  • 3,500 lbs. Axle with Hydraulic Drum Brakes Kit
    I have a solution for you but unfortunately we do not carry any axles that come with hydraulic brakes. What you will need to do is buy the parts separately, but I have all the parts you will need. First, for an axle, you will need the Dexter Axle Beam with EZ Lube Spindles # T3584F-EZ-8974. This axle is 89" long with a weight capacity of 3,500 lbs. which is the same as the # 35545E-ST-EZ-89 Dexter Axle you were looking at. For your Hydraulic Trailer Brake Assemblies you will want...
    view full answer...
  • What Are Mounting Bolt Hole Sizes For Replacement Hydraulic Trailer Brakes
    The hydraulic trailer brake you referenced, Item # AKUBRK-35L, fits 4-bolt flanges with a 2-7/8-inch hole spacing and is suitable for use on a 3500-lb axle. It fits the driver's side and brake mounting bolts are included. For the passenger side, use Item # AKUBRK-35R. Nuts and lock washers are sold separately and are available in brake mounting hardware kit Item # BIK-00 (one kit needed per wheel). I recommend the Brake Adjustment Spoon Item # W80630 as well. Links with additional...
    view full answer...

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Info for this part was:

Installed by:
Jeff D
Expert Research:
Jameson C
Updated by:
Sarah W
Updated by:
Alexander C

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