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

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

Item # AKUBRK-35L
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Accessories and Parts AKUBRK-35L - Single Servo - etrailer
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Driver'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-35L 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" - Left Hand - 3,500 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (74)
  • Q & A (8)
  • Videos (1)
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etrailer Accessories and Parts - AKUBRK-35L

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

Driver'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.


Features:

  • 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


Specs:

  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO
  • Configuration: left hand (driver'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 23-312



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





Video of Hydraulic Trailer Brake - Uni-Servo - 10" - Left Hand - 3,500 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for etrailer Trailer Brakes AKUBRK-35L Review

Today we are going to take a look at the 10-inch Uni-Servo hydraulic trailer brake assembly for 3500 pound axles, and this is the left-hand or driver side assembly. Now this hydraulic drum brake assembly is designed for use with the surge-type trailer brake actuators. This is a Uni-Servo design, which means it's a single plunger design, as you can see right here. Now the size on this is listed as 10 inches by 2-1/4 inches, and what they are telling you is the 10 inches would be the diameter, which is measured edge to edge, so if we take a ruler and go edge to edge is 10 inches, and then the 2-1/4 basically means the width of the pad on the shoe, so again, when we put that on there, you can see 2-1/4 inches, so 10 inches by 2-1/4 inches, and this is the driver's side or left-hand side. The easiest way to tell that now, all the new ones will come with a sticker that will say left-hand so you know what it is, but if the sticker is not there, the easiest way to tell what side this assembly goes on is just to look at the size or length of the shoe. If you look at this shoe compared to this one, this shoe is larger or longer and this one is shorter, so basically the shorter shoe will always be installed with the shorter shoe facing the front of the trailer, so basically here's the shorter shoe, and if this is the front of the trailer, that means this is the driver's side or left-hand side. Now these brake shoes are lined with a nice automotive grade friction material. This friction material is fully bonded. It is not riveted to the shoes, so it gives you a lot longer life and more braking torque.

The lining also has tapered edges, and then they do a circular grinding to the material to prevent cracking and crumbling that can lead to mechanical lock-up. Now these are manual adjustment brakes, so it does require a periodic manual adjustment on it. The nice thing on this, here's the star wheel that you adjust it with. It does use a fine-tooth gear and that allows for more precise setting, and there is no break-in period needed following your initial adjustment. When you go to install these and do your adjustments, what you will do is go to the back, and you'll notice there are two holes here. These have plugs in them. That's the nice thing about this assembly.

It comes with the rubber plugs already installed. You basically pop those plugs out, you put your adjustment tool in there or your screwdriver, and you can adjust the star wheel to get your setting correct for your brakes. Again, the adjuster plugs are included. A lot of brake assemblies will not include those, but you do want to have plugs in there to keep any dirt from getting into the brake assembly and causing problems, so these do come with that. They also come as you notice with the mounting bolts. This is designed to fit on a four-bolt brake mounting flange, and it comes with the bolts, so all you would need is the nuts and the lock washers.

We do also sell those separately on our website, and they are listed on this page as a related product. Now the backing plate does have an E-coating to it to help resist wear and corrosion. This brake assembly is certified by U.S. SAE standards and the CSA, which are the Canadian standards. Again, the dimension we mentioned is 10 inches by 2-1/4 inches. This is designed to fit a 3500 pound axle, and this does use 10-inch drums. That should do it for the review of the 10 inch Uni-Servo hydraulic trailer brake assembly for 3500 pound axles, and this is the driver side or left-hand side assembly..


Customer Reviews

Hydraulic Trailer Brake - Uni-Servo - 10" - Left Hand - 3,500 lbs - AKUBRK-35L

Average Customer Rating:  4.9 out of 5 stars   (74 Customer Reviews)

Driver'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.

- AKUBRK-35L
by:

I gave the product a 4-star review only because it did not come with lock nuts which meant that I needed to make a quick trip to the hardware store for (8) self-locking fine thread 7/16" nuts. It would be nice to include these with the brakes because the "old" nuts from the original brakes were not fine thread and would not work. The bolts in these are "pressed" in so I couldn't use the old bolts. Pressed in is better, but please consider including the nuts. As for the product assembly, quality and install, it couldn't be simpler. The videos for the install are very thorough and complete. Add the nuts and I would give these a 5-star. I have puchased other items from etrailer and they are a very good source of trailer parts. 430106


Comments
Great, still working just fine
Paul T - 09/08/2018

43325

- AKUBRK-35L
by:

My items came very quickly and were reasonably priced, making my brake rehabilitation project affordable and completed already. 801824



- AKUBRK-35L
by:

I purchased more than just the indicated brake wheel assembly. It was a quick install and has performed well. The boat trailer doesn't get used often enough, but when it is used to tow in up to 120 degrees across the So. Cal. deserts it's comforting to know all new parts won't leave me stranded 782554



- AKUBRK-35L
by:

I have not hooked up everything yet, but it looks good so far,. 715545



- AKUBRK-35L
by:

I have been using those complete brake assemblies on my boat trailer and think they are great! What amazed me was how easy it was to replace the old assemblies with the new ones! I owned and operated a tire and auto store for about 40 years and have lots of experience with brakes on cars, truck, motorhomes, etc., but never used a complete brake assembly like this on a trailer. Anyone can do this and I send you a big THANK YOU for such a great product! Keep up the good work! 665136



- AKUBRK-35L
by:

Fit right on my axles. Much cheaper than rebuilding old brakes! Now I need to repair brake lines. Picture of old brake. 539476



- AKUBRK-35L
by:

Not sure I ordered the correct part, but it was certainly easy to order and came very quickly. 492492



- AKUBRK-35L
by:

good job 490057



- AKUBRK-35L
by:

great as always 439418



- AKUBRK-35L
by:

Ordered new hydraulic brake system for trailer product was exactly as ordered extremely fast shipping and great competitive price. 418114



- AKUBRK-35L
by:

Great product! 411330



- AKUBRK-35L
by:

parts came within 3 days. fit right on my boat axle. would use them again+++++ 383048



- AKUBRK-35L
by:

Good God..reliable products, fast service and great people...why would you go anywhere else??? 376034



- AKUBRK-35L
by:

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. 372745



- AKUBRK-35L
by:

Perfect fit, great price. 335889



- AKUBRK-35L
by:

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. 316865



- AKUBRK-35L
by:

Product quality was very good for price, quoted delivery ($xx.xx) for three days took 6 days, had it come on time or shipping cost been adjusted, would have rated higher. 310209



- AKUBRK-35L
by:

have not installed yet but look like a perfect fit 293429



- AKUBRK-35L
by:

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%. 279377



- AKUBRK-35L
by:

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



- AKUBRK-35L
by:

As advertised! Was able to unbolt old assembly and put on new one. The old assembly had bolts that came through the back plate and nuts on the brake pad side. New assembly had bolts pressed onto the brake assembly facing inward so the nuts were on the inside. Top bolts were close to the axle, but no issues as the nuts went on with no problem. Had to use an open end wrench to tighten, as I did not have a thin wall socket. 242173



- AKUBRK-35
by:

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


Great price, perfect fit, just what I needed to replace my rusty and frozen originals...installed but not on the road yet...they got here quick. You will need your original nuts. 570026


Comments
The nuts and lock washers are available as part # BRKH10B
Mounting Hardware for 10" Brake Assemblies
$8.68
. Each set includes 8 nuts and 8 lock washers, enough fasteners to mount 2 brake assemblies.
-- Mike L - 09/29/2018

44139

- AKUBRK-35
by:

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


These are reasonably priced and they were easy to install. they work well even when wet. The only thing that would have made them 5 star would have been to have stainless springs like most marine brakes. 654188



- AKUBRK-35
by:

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


Received everything a day before it was due. The trailer is 38 years old and due to your excellent web site I was able to correctly identify the correct part numbers for my trailer. This is the second time I've used etrailer for parts and both times my experience was excellent. 523902



- AKUBRK-35
by:

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


Only down side is when used on drop axel they are hard to adjust due to a 8 small notches in the manual adjuster. 463304


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Ask the Experts about this etrailer Accessories and Parts

  • 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...
  • Hydraulic Brake Assembly Recommendation for Trailer with 10 inch Diameter Drums
    Yes, the hydraulic brake assembly part # AKUBRK-35L is the correct assembly you need for the left side of the trailer. For a set that includes both sides of the axle what you need is the part # AKUBRK-35. These assemblies are for the standard 10 inch brake assemblies that are found on 3,500 lb axles.
    view full answer...
  • Do etrailer.com Hydraulic Brake Assemblies Come with Bleeder Valves
    The bleeder valve is already installed on the # AKUBRK-35L that you referenced. You would remove the orange cap off of it, unscrew when needed when bleeding, and then tighten back down once the bleeding is over.
    view full answer...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...




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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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