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

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

Item # AKFBBRK-35R
Our Price: $71.53
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AKFBBRK-35R - RH etrailer Accessories and Parts
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Free-backing, passenger-side drum brake won't engage when you reverse, even if your actuator is activated. Automotive-grade friction pads and e-coated backing plate are long-lasting. Fits 13", 14", and 15" wheels. 1-800-940-8924 to order etrailer accessories and parts part number AKFBBRK-35R or order online at Free expert support on all etrailer products. Great prices and Fastest Shipping for Hydraulic Trailer Brake - Uni-Servo - Free Backing - 10" - Right Hand - 3,500 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (389)
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etrailer Accessories and Parts - AKFBBRK-35R

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

Free-backing, passenger-side drum brake won't engage when you reverse, even if your actuator is activated. 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
  • Free-backing design lets you back up without engaging the trailer brake, even if the actuator is activated
    • Fall-away brake shoe only anchors on drum when brakes are engaged as trailer is moving forward
  • 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

Note: Because free-backing brakes are designed to eliminate nearly all friction between the brake shoes and the drum when you are driving in reverse, a trailer breakaway kit will not be effective should your trailer disconnect from your tow vehicle while you are backing up.

Free-Backing Brake Assembly

Free-backing brakes let your trailer move in reverse without the brakes being activated by your surge actuator. These brakes are needed if your actuator does not have a reverse lockout, which is a mechanism that ensures that the actuator does not activate when your rig moves in reverse.

This free-backing hydraulic brake assembly has a fall-away shoe, which provides full braking when your trailer is moving forward, but supplies only limited friction when the trailer is moving in reverse. During normal forward braking, the fall-away shoe expands to catch your brake drum. When driving in reverse, however, the fall-away shoe's extra spring will overcome the pressure from the brake cylinder. This keeps the leading edge from catching on the drum, so the shoe will not fully pivot into the drum. This exerts a smaller amount of friction, just enough to provide a minimal amount of braking when in reverse.

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.

12-810 AxleTek 10" X 2-1/4" RH Hydraulic Brake Assembly - Free Backing - Passengers Side - 3.5K Axles - E-Coat

Customer Satisfaction Score:

Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (389 Customer Reviews)

Free-backing, passenger-side drum brake won't engage when you reverse, even if your actuator is activated. Automotive-grade friction pads and e-coated backing plate are long-lasting. Fits 13", 14", and 15" wheels.


The AKFBBRK-35 L and R brake assemble is an excellent product. A very good product for the low cost compared to other products on the market. Excellent quality both in manufacturing and material. The hardest part in installing the new product was in getting the old parts off of the trailer. The new assembly bolted into place with no problem. Replacing the complete assembly is the best way to go rather than just replacing the shoes and brake cylinder and hardware. Sorry that I neglected to take a photo of the brake assembly installed but their performance was better than the original brakes which did not have the "free backing" feature. I feel much safer now when pulling a loaded trailer.


Prompt service is much appreciated. Brakes came nicely packaged to prevent transit damage. Product looks to be be well made but I'm putting them on the shelf. Brakes aren't required so I converted the trailer back to brakeless. With 4 boat ramps within 10 miles brakes aren't worth the hassle. I did use the spindle seal set (15123 Inner Bearing & 1.980t Or 1.938 Bb) which fit perfect.


This is the way to go for break repair on your trailer complete new break from backing plate to drum for what it coast me last time in parts ( bearing, seals, shoes, cylinder rebuild kit) and took less time to install, have not towed yet but sure it will be great.


I am changing trailer brakes from electric (I never know if they are working or not) to surge brakes. After calling to get information that was not clear in the on the website I ordered and received the necessary parts. The technical help on the phone was helpful and and the order processed and received promptly.


Had to replace 2 and upgraded to 4 for better braking and they have been great in 5000 miles. best price, free shipping and trouble free, what's not to like?

Try 2 yrs! At least since I purchased said items. Have probably put 6000 miles on everything with no issues. Thanks for checking and may God bless
Doug H - 07/20/2018


Bolted right on perfect fit. Just needed to buy the correct nuts. They are fine thread studs on the unit.


Good price,selection & great tech support,will check with this site first on trailer maintenance.


I had an excellent experience doing business with etrailer. The parts came in on time and really sooner than I expected. I received all the parts I ordered and they were very well packed. All phone calls with staff were very good and I plan to do more business with etrailer.



The brake shoe kit was perfect for my application. It was easy to use the website and it arrived right on time. I’ve used etrailer before and will use them again.


Worked great an shipped timely... how can you beat that


This brake drum was shipped and arrived in a couple of days. It was exactly what I ordered. I installed it and we will see how well it holds up.


arrived as advertised. I had to make a change on my order and the customer service rep was very responsive in helping me with the change.


Arrived quickly! Everything I ordered was there. Went on the trailer very easily. Works great! Thanks!


Part was perfect, and quick shipping!


Just what the Dr. ordered. Received quickly and appears to be quality product fair price


Everything fit perfect Lisa was an excellent sales rep will buy from them again good company



Excellent service. Would order from again.






Review from a similar FreeBack 10 Inch in Accessories and Parts

Excellent perfect match for my 2005 Jayco Baja trailer. Easy peasy to install. To make it easier to get the brake line threaded in... start it prior to bolting it into place.


Review from a similar FreeBack 10 Inch in Accessories and Parts

Had to replace the old 20+ year old Attwood brake system. Both the brake assemblies and the coupler are working great.


Review from a similar FreeBack 10 Inch in Accessories and Parts

I restored an old concrete buggy that I purchased surplus from a rental company. It was in pretty bad shape. I got it sand blasted. I painted it with Rustoleum. I installed new brake parts, master cylinder, and wheel bearing kits. Pretty big project but it came out great! Now I have a great little dual-axle dump trailer designed to carry a cubic yard of ready mix. Works great for short loads of concrete and for drain rock and landscape materials too.

I had to use JB Weld to get a good seal on the new plastic master cylinder cylinder-to-brake-hose connection, which was a pain because it leaked and required multiple attempts to fix. Plastic threads on the plastic master cylinder didn't seal with teflon tape. They are easy to over torque/strip! Maybe I did that initially, but JB Weld fixed the problem.

etrailer brake assemblies were easy to install and of very good quality. Fast shipping. Thanks!


Review from a similar FreeBack 10 Inch in Accessories and Parts

I am sure overall product would have been good. etrailer Products typically are good quality. I ordered this because it stated it would be shipped in 3 days. After over a week I called their warehouse and it had not even been pulled from the shelf. This was not during covid. There were no other shipping delays. They told me the product was on their shelf just had not been pulled because of staff shortage and likely would still be a few days. This is the reason for the 2 star review. I had to cancel my order and reorder from another vendor which I could have done in the beginning and saved my boat being down a couple of weeks.

Show More Reviews

See what our Experts say about this etrailer Accessories and Parts

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    You are correct. We sell the assemblies as a pair as part # AKFBBRK-35-D or individually as part # AKFBBRK-35R-D and # AKFBBRK-35L-D.
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  • Does the Hydraulic Brake Kit Come With One or Two Brake Assemblies
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    You can use free-backing brake assemblies on your trailer in place of the existing non-free-backing brakes. For your 2001 EZ Loader boat trailer I recommend the Demco Hydraulic Drum Brake Assemly, Free Backing, Galvanized, for 10 Inch Brakes # 40715 for the right- hand side and # 40716 for the left-hand side. The galvanized steel will resist rust, making these assemblies great for your boat trailer. I have attached an installation video of these brakes for you. Another great option is...
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