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  1. Trailer Brakes
  2. etrailer
  3. 3500 lbs Axle
  4. Hydraulic Drum Brakes
  5. 10 x 2-1/4 Inch Drum
  6. 14 Inch Wheel
  7. 14-1/2 Inch Wheel
  8. 15 Inch Wheel
Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K

Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K

Item # AKUBRK-35-D
Our Price: $152.12
Trailer Brakes
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Shipping Weight: 18 lbs
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Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K 10 x 2-1/4 Inch Drum AKUBRK-35-D
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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 14" to 15" wheels. Great Prices for the best trailer brakes from etrailer. Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K part number AKUBRK-35-D can be ordered online at or call 1-636-306-4830 for expert service.
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  • Why etrailer?

etrailer by AxleTek Trailer Brakes - AKUBRK-35-D

  • 3500 lbs Axle
  • Hydraulic Drum Brakes
  • 10 x 2-1/4 Inch Drum
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Boat Trailer
  • Snow Trailer
  • Single Servo
  • etrailer

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 14" to 15" wheels.


  • Marine-grade hydraulic drum brake assemblies are great for boat trailers
    • Designed for use with surge-type trailer brake actuators
  • 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 gears allow for a more precise setting
  • Dacromet coating on backing plates offers superior corrosion resistance
    • Ideal for use on a boat or snowmobile trailer
    • Durable enough for saltwater applications
  • Stainless steel springs are durable and rustproof
  • Aluminum hydraulic cylinders resist rust
  • Single plunger design
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assemblies and off of the shoes
  • Left-hand (driver's-side) brake assembly, right-hand (passenger's-side) brake assembly, and mounting bolts included
    • Nuts and lock washers (BRKH10B) sold separately
  • QAI and CSA certified


  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO
  • Dimensions: 10" diameter x 2-1/4" wide
  • Mounting flange bolt pattern: 4 bolt
    • Distance between mounting flange bolt holes (center to center): 2-7/8"
  • Wheel size: 14" and 15"
  • Axle rating: 3,500 lbs
  • 1-Year limited warranty

These trailer brake assemblies act as part of your trailer's hydraulic braking system. A hydraulic trailer brake actuator is required for these brakes to function.

Thoroughly Tested for Safety

These brake assemblies meet the requirements for certification by the Canadian Standards Association (CSA). The CSA creates standards, which when complied with ensure a safe and quality product. These brake assemblies underwent extensive testing to measure stopping distances when braking. These brakes have 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 these brake assemblies 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.

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

Customer Satisfaction Score:

Customer Reviews

Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K - AKUBRK-35-D

Average Customer Rating:  4.7 out of 5 stars   (169 Customer Reviews)

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 14" to 15" wheels.


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.


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.


Great bolt up for all components. In and out of ramp on the Oregon coast for three weeks and have rust on springs and connecting components. Backing plates are good but hardware seems a little week with rust problems.


Missing half the adjuster for the left brake. I used etrailer instead of [online vendor] because I thought I would get a better product and the correct parts without issues. Not the case.

Thanks for bringing this to our attention. We definitely want to make sure you get taken care of. I have sent your information to our customer service team and they will be reaching out to you.
-- Etrailer Expert Brooke M - 10/29/2022


Your customer service girls were nice but your warehouse must be a total disaster in stock items took 17 days to ship TOTALLY UNACCEPTABLE probably will never order from you again


Excellent product. Perfect fit and easy install. Information provided by etrailer which made selection very easy.


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.

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.
Mitch - 09/14/2021


Parts work and fit great. Shipping was right on time. Will call you again next time I need trailer parts.


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.

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!
Robert - 02/01/2022


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.


The brakes work great on my boat trailer! I Would purchase again and definitely recommend. Also, once order was placed the delivery time was very fast. Thank you!


Missing the hole for water rinse tubing, missing the 4 - 7/16 x20 fine locking nuts, studs are to short to add a lock washer, one of two brake cylinders had a poorly tapped out brake line hole, had to buy a tap to salvage it. Not a bargain, cheap China junk, should have purchased locally thru trailer dealer offering American made. Amazes that etrailer does not at least advise you of such, usually pleased w/ etrailer, not so much now.

I am sorry that you are not pleased with your items. I did want to mention that the nuts and lock washers Item # BRKH10B
Mounting Hardware for 10" Brake Assemblies
are sold separately but the adjuster plugs included, cover access holes to keep dirt and grime out of the assemblies and off of the shoes.
-- Etrailer Expert Sierra K - 10/15/2021


Customer service was very helpful getting me the right parts. Thanks!


Got the new brakes you guys are great only took a couple day to get them will be back on the water soon.

Still working great would buy them again.
Forrest - 09/05/2021


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.


I bought brakes for my boat trailer all 4 wheels and a master cylinder everything was great bolted right on and after a year still working great.


Perfect fit backing plate, pads and hardware for my 2001 Sea Ray trailer. All parts are high quality.


Sold the trailer, work good before it was sold.


Your product has been great for my boat trailer. Thanks so much!


Seems to be a good product, they fit perfectly. Good value for a marine trailer brake


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.

My new Etrailer braking system has been worki g flawlessly since installed
Joe B - 01/14/2020


Easy install. Perfect fit.


i wish it was made anewhere but china. fast service.


Perfect replacement for my Eagle trailer with a 3500 pound axle. Wish the nuts came with the brake kit as they are not ordinary nuts to have laying around your shop or at least tell you nuts aren't included. 7/16- 20 nuts are needed.


The parts were exactly what I need, but the delivery took a little to long.

Show More Reviews

See what our Experts say about this etrailer Trailer Brakes

  • Replacement Hydraulic Brake Assemblies for Dexter 3500 lb Capacity Axle
    I've checked the 154755414 s/n you provided with Dexter, who tells me you have a standard 3500 lb axle. A 3500 lb axle would use a 10 inch brake assembly like the # AKUBRK-35 hydraulic brake assemblies you mentioned. If this is for use on a boat or snowmobile trailer, I'd recommend the # AKUBRK-35-D due to the improved corrosion resistance provided by its Dacromet coating, stainless steel springs and aluminum wheel cylinder housings.
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  • How to Prep Brake Drums for Use with New Braking Assemblies
    The best way to prep your new drums would be to take them to a local shop and have them resurfaced. Although there may not be any visible pitting they could still be warped which could create more issues further down the road. You also need to make sure there is enough life left in the material which they will tell you before the resurfacing process. If you choose not to have them resurfaced then I recommend taking a bit of fine grit sandpaper and removing any surface rust off the top layer...
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  • Which Direction Should Star Wheel of Brake Assembly Move to Tighten Brakes
    The adjustment star on brake assemblies like the # AKUBRK-35-D needs to turn counter-clockwise to expand the shoes so you'd need to click the star "up" to tighten the brakes or "down" to loosen them as you'd view them from the back of the assemblies. You will adjust the brakes using that wheel until there is a slight but constant drag of the shoe pads on the drum. I have included a link to a video and at about the 4:39 mark our installed begins adjusting the brakes.
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  • Replacement Hydraulic Drum Brakes for Trailer with 10-Inch Hub/Drums
    Thank you for the photo of your trailer hub/drum assembly which shows its diameter to be 10-inches. More than likely the drum depth dimension is 2-1/4-inches since 10 x 2-1/4-inch hubs are quite popular. Please refer to the photo I linked for you. Our range of hydraulic drum brake assemblies in this size is linked for you. These work for axle weight ratings of either 3500-lbs or 3750-lbs and they are compatible with wheel diameters from 13- to 15-inches. An example is single-servo brake...
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  • What is Best Corrosion Resistant Brake Assembly for 10 inch Drum Hydraulic Setup
    For 10 inch hydraulic drum brakes the best option is the part # AKUBRK-35-D that you referenced in terms of corrosion resistance since these are Dacromet coated.
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  • Replacement Brake Assemblies for 1987 VM Boat Trailer
    Since you need 10 inch by 2-1/4 inch hydraulic brake assemblies that have a 4 bolt pattern that is 2-7/8 inches the drum brake kit part # AKUBRK-35-D would be what you'd need. The bolt pattern you mentioned is the standard 4 bolt pattern.
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  • How To Find Correct Braking Assemblies for 1996 Load Rite 21T Trailer
    The easiest way to find the correct replacement braking assemblies for a trailer will be by using the axle capacity which is typically printed onto a tag in the center of the beam. If one is not present you can measure the inside of the drum and count the mounting flange bolts. You'll also need to determine if you have electric or hydraulic and whether they are drum or disc. I have attached our entire trailer brake assembly selection below for you to choose from once you get the above...
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  • Replacement Hydraulic Drum Brakes for Dico 15638
    According to my research, the Dico 15638 Braking Assemblies that you have now are 10" x 2-1/4" therefore the correct replacement for you will be the Hydraulic Brake Kit part # AKUBRK-35-D for single servo or part # AKFBBRK-35-D for free backing. The single servo means that you will need to have some sort of manual or electric lockout on the coupler in order to reverse the trailer whereas the free backing do not require any sort of additional lockout. The price can be found by clicking through...
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  • Troubleshooting Weak Trailer Brakes When Using Foot Pedal But Great Breaking with Manual Override
    It sounds like you have a proportional brake controller, like the Prodigy P3 # 90195, that activates the brakes on your trailer at the same time and with the same intensity as the brake pedal in your tow vehicle. What I think is going on is that you aren't adjusting the power output of the brake controller before heading down the road. The manual override will always provide the 12V of power but if you have the power output setting low on your brake controller (like a 5 or 6) then it will...
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  • Demco DM72VR Brake Bleeding Instructions and Hopkins 7 Pin to 6 Round Demco Actuator
    I have attached a link that will give you step by step instructions on how to bleed your trailer brakes. For your 6 pin trailer connector to your round 7 flat blade vehicle connector I recommend the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter item # HM47085. This cable stretches out to 3' when it is uncoiled.
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  • Hopkins 6 Pin Connector to Round 7 Flat Connector for Electric Reverse Brake Solenoid
    For your 6 pin trailer connector to your round 7 flat blade vehicle connector I recommend the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter item # HM47085. This cable stretches out to 3' when it is uncoiled.
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  • How To Determine Which Replacement Brakes Will Fit A Karavan Boat Trailer
    From what I could find out, you do indeed have a Karavan boat trailer. Unfortunately, this was all I could confirm with the US-2800-SB-74-ST-GL number. With that being said, there will be two ways to proceed to figure out which replacements will be correct for your trailer. First, and the easiest way, will be to contact Karavan with your VIN. They should be able to tell you exactly what size, brand, style, and capacity brakes were used on your trailer. If for some reason they cannot, you...
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  • Difference Between 3,500 lb 10-Inch Hydraulic Trailer Brakes for Boat Trailer
    There is a difference between the two 3,500 lb 10-inch hydraulic brake assemblies you referenced, which is that one has a dacromet coating for better resistance to corrosion. Dacromet is an adhesive coating that gives added protection against corrosion so they are optimal for a boat trailer. - Dacromet Coating: Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet # AKUBRK-35-D - Non-Dacromet: Hydraulic Trailer Brake Kit - Uni-Servo # AKUBRK-35 These are otherwise the same hydraulic brakes...
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  • Brake Assemblies For 3,500Lb Surge Brakes That Allow For Backing Up Without a Reverse Lockout
    Yes, The Dexter Trailer Hub and Drum Assembly # DX68XR will work with brakes that do not have a reverse lockout but do know that the hubs have no control over the brake activation on your trailer. You need the brake assembly for that. The Hydraulic Trailer Brake Kit # AKUBRK-35 or Hydraulic Trailer Brake Kit # AKUBRK-35-D (for boat trailers) will allow for the brakes to activate when backing up if you do not have a reverse lockout on your brake actuator. The Hydraulic Trailer Brake...
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  • Compatibility between UFP HD1377 Drum/Hub and AKUBRK-35-D Trailer Brake Assembly
    The UFP HD377 is a 10 inch hub drum for a typical 3.5K axle. The # AKUBRK-35-D brake assembly you'd looked at is compatible with a 10 x 2-1/4 inch hub drum, as long a the inside width and depth dimensions of your existing hub match that, the assembly would work perfectly for you. I'd make sure that the inside surface of the existing hub/drum where the brake pads would contact are in good condition. If not, the proper replacement hub/drum is part # AKHD-545-35-K
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    Image 1 for
  • Mounting Hardware for etrailer 10 Inch Hydraulic Trailer Brake Kit # AKUBRK-35-D
    For 10 inch brakes like # AKUBRK-35-D you can use nut and lock washer set (8 each) # BRKH10B. If you want to source stainless or galvanized nuts locally then they should be 7/16"-20.
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  • Do Brake Shoes Need to be Replaced if Grease Spilled on Them
    I empathize with you because accidents do happen but if grease got on the brake shoes of your Hydraulic Trailer Brake Kit # AKUBRK-35-D to be safe you need to replace the shoes in order to ensure proper braking. For that you will need two of the Hydraulic Brake Shoe/Lining # BP04-120; this shoe will fit single servo 10" diameter x 2-1/4" wide shoes like your kit has.
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  • Distance Between Mounting Flange Bolt Holes on Hydraulic Trailer Brake Kit
    The Hydraulic Trailer Brake Kit # AKUBRK-35-D has a 4-bolt mounting flange bolt pattern and the mounting flange bolts are measured 2-7/8 inches center to center. This kit includes both the left and right brake assemblies, measure 10" diameter x 2-1/4" wide, work with a 3,500 lb axle, and have dacromet-coated backing plates which make them highly resistant to any type of corrosion. These brakes do require the use of Mounting Hardware for 10" Brake Assemblies # BRKH10B to install. I have...
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  • How Do Hydraulic Drum Brakes Lock Up if Trailer Becomes Uncoupled From Tow Vehicle
    The Hydraulic Trailer Brake Kit # AKUBRK-35-D referenced in your question do not, by themselves, lock up if the trailer were to come unhitched. This is the case with any hydraulic brake assembly. The mechanism that allows hydraulic brakes to lock up if the trailer were to ever come uncoupled with the tow vehicle is located on the surge actuator, such as with the Demco # DM72VR. This breakaway cable should be located on the top of your actuator (see attached image). You will...
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    Image 1 for
  • Fit of Kodiak 20TA-BLKIT Brake Line Kit with Hydraulic Drum Brake Assemblies
    The # 20TA-BLKIT brake line kit you referenced is indeed compatible with the # AKUBRK-35-D Hydraulic Brake assemblies you'd looked at, the line kit is compatible with bolt disc and drum brake systems. The brake assemblies will be compatible with your existing axles, assuming the brake mounting flanges have the 2-7/8 inch center to center bolt hole spacing. I've linked to videos featuring the line kit and the brake assemblies you'd looked at.
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    Image 1 for
  • Width of 3,500 lb Hydraulic Trailer Brakes AKUBRK-35-D
    I could not find where it said "2-1/4 inch drums" though what I can tell you is the width of the shoes is 2-1/4 inches on the 3,500 lb hydraulic brakes: - Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies # AKUBRK-35-D This kit includes the Right Hand # AKFBBRK-35R-D and Left Hand # AKFBBRK-35L-D brakes, and to install requires Mounting Hardware for 10" Brake Assemblies # BRKH10B.
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  • Comparing Dacromet Hydraulic Trailer Brake Assemblies for 10 Inch Hubs
    The Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs # AKFBBRK-35-D and the Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K # AKUBRK-35-D are similar. The difference is the # AKUBRK-35-D is not a free-backing assembly meaning you will still have about 20% braking when in reverse without a reverse lockout solenoid or manual lockout. The # AKFBBRK-35-D is "free backing" meaning it will not apply the...
    view full answer...
  • Recommended Replacement Surge Coupler for ATWOOD 82541 and Brake Assemblies
    The Atwood 82541 you referenced was discontinued a while back. The replacement I recommend is the Brake Actuator with Manual Lockout - Bolt On - Drum - 2" Ball - 7,500 lbs # T63FR. Then for your EZLoader drum brakes I recommend the Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet # AKUBRK-35-D if you have 10 inch drums or the Hydraulic Brake Kit - Uni-Servo - Free Backing # AKFBBRK-7 for 12 inch drums.
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  • Correct 3,500 lb Hub & Drum For Boat Trailer With Bearings L44649 & L68149
    Outstanding information, thanks so much, and what you have, based on those measurements are a spindle for a 3,500 lb axle, with outer bearing L44649 and inner bearing L68149. For that, what you need is the following hub and drum: - Trailer Hub and Drum Assembly # AKHD-545-35-G-K This is a galvanized hub for your boat trailer, has a 5 on 4-1/2" wheel bolt pattern, and will allow you to use 3,500 lb brakes. Your brake flange bolt holes are the standard size so you can use the Hydraulic...
    view full answer...

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