Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs
(385 reviews)
Price: $122.86
In Stock
Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs
Item # AKFBBRK-35-D
Our Price: $122.86
This item qualifies for Free Shipping
In Stock
- All Info
- Reviews (385)
- Q & A (0)
- Photos
- Why etrailer?
etrailer by AxleTek Trailer Brakes - AKFBBRK-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
- Free Backing
- etrailer
Marine-grade, free-backing hydraulic drum brakes won't engage in reverse, even if your actuator is activated. Automotive-grade friction pads are long-lasting. Dacromet-coated backing plates resist rust. Fit 14" to 15" wheels.
Features:
- Marine-grade hydraulic drum brake assemblies are great for boat trailers
- Designed for use with surge-type trailer brake actuators
- Free-backing design lets you back up without engaging the trailer brakes, even if the actuator is activated
- Fall-away brake shoes only anchor on drums 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 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
Specs:
- 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
- Wheel size: 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.
Each of these free-backing hydraulic brake assemblies 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.
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-73 AxleTek 10" X 2-1/4" LH Hydraulic Brake Assembly - Free Backing - Drivers Side - 3.5K Axles - Dacromet Coat
B10H-74 AxleTek 10" X 2-1/4" RH Hydraulic Brake Assembly - Free Backing - Passengers Side - 3.5K Axles - Dacromet Coat
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
- Arrived Damaged
- etrailer mistake
Customer Reviews
Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs - AKFBBRK-35-D
Average Customer Rating: 4.8 out of 5 stars (385 Customer Reviews)
Marine-grade, free-backing hydraulic drum brakes won't engage in reverse, even if your actuator is activated. Automotive-grade friction pads are long-lasting. Dacromet-coated backing plates resist rust. Fit 14" to 15" wheels.by: Dave 08/30/2022
Had to replace the old 20+ year old Attwood brake system. Both the brake assemblies and the coupler are working great.
by: Larry11/12/2019
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!
by: Brett09/28/2022
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.
by: Chris04/18/2022
I installed these on my 1995 dual axle DHM trailer which carries my '95 closed bow Ski Nautique. The finish is stout and set up very easy. Had a bit of a challenge installing one nut on each side due to close tolerances between the backing plate and axle support but once on, the remaining three when on easily. Recommend doing this over trying to replace just the shoes.
by: David 09/27/2022
Would have been easier if I would halve pressed out the mounting studs and reused the original nuts and bolts. There was no way to torque the bottom nuts. Overall very satisfied with this product
by: Bruce S12/15/2020
Good product, fit very well and easy to adjust when installed ( lubricated the adjuster anyway) After a year of in and out of the salt water once a week for the season they look very good, a little rust, but not bad. Will see next year how they stand up.
Comments
Update: brake pad came off and locked up trailer wheel yesterday. Told only 1 year warrantee on workmanship issue. 2 years and now I need new brakes because they failed.
Bruce S - 08/26/2022by: Tye01/10/2022
The product looked great and I got great service. I was unable to use the brakes, though because I needed 5 hole backing plate instead of the 4 hole backing plate. I never got around to seeking a return, my fault.
by: Corey09/04/2022
Poor packaging from etrailer led to the galvanized coating being scraped off one during shipping. As well as the bleeder cap being broken on one and missing on the other. Sold as a pair.
by: Michael06/19/2022
Pretty good replacement for my trailer. Only issue I had was lack of nuts and lock washers. The stud size and threads weren’t the same as my old brakes, so I had to run to the store to purchase 8 lock washers and nuts. Probably spent more on gas than the hardware. 7/16”, 20 tpi for future reference.
by: Kevin S.03/14/2017
This review is for the Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs - AKFBBRK-35-D. This worked perfectly on my 2008 Bear pontoon trailer with Axis branded 3,500 lb tandem axles and hydraulic surge brakes on one axle. It all went together smoothly without issue and after repacking the bearings and bleeding the system, the brakes now work again. A special thanks to Jameson for your time and recommendation on this kit, it was spot on!
by: Micheal05/26/2022
Joshua was excellent!! He took my order for 4 trailer brake assemblies and it was shipped the same day. The parts are an exact replacement for what was on my 2004 ezloader trailer.
by: Richard 08/28/2021
It was a very easy replacement.
Comments
No problems with the brakes after a year of use.
Richard - 08/29/2022by: Sharon 10/05/2022
Quality products at great prices
by: Tim 11/11/2022
Perfect replacement
by: James 08/16/2022
Fantastic transaction. I will definitely use them again.
by: Mike C07/24/2018
Fantastic way to repair brakes on trailer. Actually less cost than buying individual parts to complete the job. Both sides completed in under 2 hours. Will be sure to tell everyone i know that has trailers to used this site for all of their needs. This is the 2nd trailer we have done brakes on,
Extremely happy i found this site.
by: Walter Collier12/12/2018
Here is some pictures of the before and after pictures of my boat trailer brake restoration. I contacted your customer service and told them what I wanted to do and they sent me all the parts that I needed. Everything went very smooth and all parts fit perfect. Thank you so much for your help and expert advice. Thanks again
by: John03/26/2022
FIRST ROAD TRIP AT FIVE IN THE MORNING A LARGE DoE CAME UP OUT OF THE DITCH IN FRONT OF US. THE BRAKES WORKED SO WELL THAT I AM ABLE TO WRITE ABOUT THE EXPERIENCE
by: John09/06/2018
Excellent product that replaced 25 year old brakes on a boat trailer at a fraction of the price that local dealers wanted for them. I found all of the parts I needed by searching the site and everything installed very easily.
by: Phillip08/17/2021
Very poorly packaged, since the brake assembly and the grease seals were packaged together with just an envelope to protect the seals they naturally were smashed but also the brake pads were misaligned and the brake shoes had several chips on the pad surface
the brake pads don't concern me that much but I need you to send replacement seals
Comments
I apologize for the poor box and damage. Customer Service will be reaching out to you.
-- 
Sierra K - 08/23/2021by: Jeremy07/03/2020
Perfect fit..... works great ....thank u
Comments
Still working great
Jeremy - 07/05/2021by: Michael04/26/2018
The loaded marine grade backing plates made my job super easy. The fit was perfect and went smooth. I would like to see new nuts supplied with the studded backing plate. My order was processed fast and I received it quickly. Packaging was great.
by: Willie 08/25/2022
Brakes were easy to adjust and install.
by: John 09/20/2021
I bought these to replace a set I bought three years ago, one of the wheel cylinders got stuck, so I just replaced with these. basically when they come in the mail you just bolt them on and go. I have a bolt trailer and sometime put it in salt water. the salt water eats everything. The thing that is nice about e trailer is fast shipping and good costumer service over the phone.
by: Wayne T01/17/2018
My new brakes look and fit great. This made the replacement on my Heritage boat trailer very easy. The quality looks great and should last me a long time.
Thanks etrailer for your help!
25
385
Show More Reviews
See what our Experts say about this etrailer Trailer Brakes
- Is There a Difference Between Brake Assembly Part # AKFBBRK-35-D, AKFBBRK-35R-D and # AKFBBRK-35L-DYou 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.
view full answer... - Does the Hydraulic Brake Kit Come With One or Two Brake AssembliesThe Hydraulic Brake Kit # AKFBBRK-35-D comes with both the left hand and right hand assemblies so you just need to purchase one kit per axle. If you are needing to replace one specific brake then the left hand is part # AKFBBRK-35L-D and the right hand is part # AKFBBRK-35R-D.
view full answer... - How to Determine Which Hydraulic Brake Assemblies for Tandem Axle Boat TrailerTo determine which hydraulic drum brake assemblies will fit on your 2,500 pound axles you'll need to measure the dimensions of your drums. For example, if your drums are 10 by 2-1/4 inches you can use # AKFBBRK-35-D. Since you have a boat trailer I suggest getting galvanized or dacromet brakes to resist corrosion.
view full answer... - Brake Assembly Recommendation for Boat Trailer That Allows it to be Backed up Without Brake LockupBest option would be to install free-backing brake assemblies on your trailer as they allow the trailer to be reversed and not have the brakes apply. For example if you have 3,500 lb axles on your trailer you'd want the kit part # AKFBBRK-35-D which comes with assemblies for both the left and the right. These are galvanized too which helps prevent corrosion. I also attached a link below to a page that has all of the free backing plates we offer for you to check out if you have a different...
view full answer... - How to Determine Which Hydraulic Brakes to Use on a TrailerThere are two different types of hydraulic brakes used on a trailer which are disc brakes and drum brakes. A drum brake has a small round drum in which the shoes inside the backing plate push up and out to slow the trailer whereas a disc brake assembly is composed of a circular round rotor and half moon shaped caliper which clamps down on the rotor to slow the trailer. I have attached a photo of both to give you a better understanding. The part number you provided "KH8444" was manufactured...
view full answer...
- Torque Specs for Brake Assembly and Brake ActuatorThe torque specs for the Hydraulic Brake Kit # AKFBBRK-35-D are 45-70 foot lbs and for your Titan Actuator T43329007K the bolts should be tightened to 80 foot lbs.
view full answer... - Difference Between Single, Dual and Free Backing Servo Brake AssembliesThe biggest difference between the servo styles that you'll notice is between free backing plates and the others. The free-backing plates will allow your trailer to back up without having the brakes lock up. With surge brakes typically when you go to reverse the trailer it pressurizes the brake system which locks the wheels up. Free backing setups are designed to allow the pressure to build but not activate the shoes of the assembly so the trailer can back up. Some surge brake trailers...
view full answer... - How to Determine Which Drum Brakes to GetThere are a few pieces of information that you will need to know when looking for replacement drum brakes. First of all you will need to know the weight capacity of your axle so you can choose drum brakes that will be able to safely stop your trailer. The brake mounting flange is another important thing to look at when looking for trailer brakes. The most common is a 4 bolt pattern, but there are 5 bolt patterns for trailers with a bigger weight capacity. You will also need to note...
view full answer...
- Proper Way to Adjust Brake Assemblies of Hydraulic Brake Kit # AKFBBRK-35-DThe adjustment procedure you mentioned of tigthening the adjustement till you can't turn the wheel by hand and then backing off 10 clicks is the standard way to adjust brakes and would be the correct way to adjust the Hydraulic Brake Kit # AKFBBRK-35-D that you referenced. If you follow that procedure with these assemblies you'll be good. I also attached a video that shows how to adjust brakes as well. At about the 4:39 mark our installer begins adjusting the brakes.
view full answer... - Size Fittings for Brake Lines on the Hydraulic Brake Assembly Kit # AKFBBRK-35-DThe thread size that the brake line fittings of the Hydraulic Brake Kit # AKFBBRK-35-D that you referenced is 3/16"-20. This is the standard size that brake lines and fittings are made for.
view full answer... - For Trailer Brake Assemblies Which Side of the Trailer Is Left Hand Side and Right Hand SideThe left hand side of a trailer is the driver side of it and the right hand side is the passenger side. With this set the smaller shoe faces forward and the larger one towards the rear.
view full answer... - Bolt Pattern of Mounting Flange of Hydraulic Brake Kit # AKFBBRK-35-DThe distance between the 4 mounting studs of the Hydraulic Brake Kit # AKFBBRK-35-D that you referenced is 2-7/8 inches vertically and horizontally. This is the standard 4 bolt pattern for trailer brake assemblies.
view full answer...
- Solution for Needing Replacement Brake Shoes for etrailer Hydraulic Brake AssembliesThe shoes of the # AKFBBRK-35-D are not available separately. Only solution is replacing entire assemblies. Typically with replacement brake shoes the price isn't far off from the entire assembly price and the install is way easier for swapping assemblies instead trying to disassemble the shoes from the assemblies.
view full answer... - Can Surge Brakes be Added to Aspen CamperWe have everything you will need to add surge brakes to your Aspen Camper. I have attached a link that will take you to our available selection of brake assemblies. You can filter through the different assemblies based on your camper's axle capacity and drum size. I have also included a detailed article on adding hydraulic drum brakes that will lay out all the components you will need to make the conversion.
view full answer... - Correct Replacement 10" Free-Backing Braking AssembliesThe Hydraulic Brake Kit part # AKFBBRK-35-D are just what you need to replace the hydraulic free-backing braking assemblies on your trailer. The hydraulic 10" braking assemblies are all going to have the same 2-1/4" depth which is measured on the contact surface inside the drum.
view full answer... - Replacement Hydraulic 10 Trailer Brakes for 1999 Jayco Eagle Pop UpI do have an option for you but we don't carry replacement brake servos for Atwood Hydraulic Trailer Brakes as they have been discontinued by the manufacturer. Therefore, you will need to replace the entire assemblies and for this I recommend the Hydraulic Brake Kit part # AKFBBRK-35-D. These brakes are free backing so you can reverse without a lockout solenoid and they have a dacroment finish which will hold up well to the elements.
view full answer... - Will the Hydraulic Brake Kit for 3,500 Lb Axles Work with 13 WheelsIn regards to wheel size compatibility, this comes from the hub as the surface area on said hub is what dictates the wheel size. Therefore, if you're already using 13" wheels with your existing hubs then there won't be any issues with the Hydraulic Brake Kit part # AKFBBRK-35-D.
view full answer... - How To Find Correct Replacement Hydraulic Brakes for TrailerRight Sailboat TrailerThere are two ways to confirm fit of the Hydraulic Brake Kit part # AKFBBRK-35-D, you can either measure the axle tube diameter or measure the inside of the hub where the pads ride. If it's a 3,500 lb axle then the diameter will be 2-3/8" and the inside of the hub will measure 10" x 2-1/4". If you have different measurements let me know what they are or you can choose from the full list below.
view full answer... - Where is Valve to Bleed Hydraulic Drum Brake Assemblies AKFBBRK-35-DOn the backside of the mounting plate of the Hydraulic Brake Kit part # AKFBBRK-35-D is a fitting covered by a red cover that you'd use to bleed them. Like with most brake bleeding methods you'll need someone to pressurize the brake lines while you open the valve to bleed off the pressure built, then you'd close the valve, the brakes would then be released and then repeat till the air lines are gone.
view full answer...
- Recommended Free-Backing Hydraulic Brakes for Surge Brakes Without Reverse LockoutAll hydraulic brake drum systems are compatible with free-backing brake assemblies like # AKFBBRK-35-D for 3500 lb axles with 10 inch drums or # AKFBBRK-7 for axles 5.5K to 7K with 12 inch assemblies. The brake lines are run to the brake cylinder that only has a single piston to allow movement in reverse without engaging the brake shoes to stop the trailer. Let me know if you have more specific fit questions.
view full answer... - Replacement Hydraulic Drum Brakes for Dico 15638According 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...
view full answer... - Bolt Hole Spacing of 4-Bolt Brake Mounting Flange for 10 Inch 3,500 Pound Hydraulic Brake KitThe Hydraulic Brake Kit # AKFBBRK-35-D fits on a standard 4 bolt brake flange for 10 inch brakes like # 4-35. The standard measurement is 2-7/8 between the bolt holes. I've attached a diagram as well.
view full answer...
- Recommended Hydraulic 10 Inch Brake Assemblies With Aluminum Brake Cylinders for Boat TrailerThe wheel cylinders used on the # AKFBBRK-35 brake assemblies are cast iron so they wouldn't be the best option for a boat trailer. Instead, I'd use # AKFBBRK-35-D which feature Dacromet coated backing plates, aluminum brake cylinders and stainless steel springs for increased corrosion resistance. The Dexter # 099-175-00 Drop-N-Go brake actuating coupler would be an excellent replacement for your existing Atwood surge coupler. I've linked to some product description videos for the products...
view full answer... - Why Does Trailer with Surge Brakes Lock Up Brakes When ReversedThis is one of the quirks of surge brakes which is why they make reverse lockouts to allow the trailer to be reversed. If you had a Titan actuator for example you'd want the lock out solenoid part # T4748800. If you have a different brand let me know. If the brakes are drum there might be a set of free-backing plates you could swap to that would allow the trailer to be backed up as well. If you had 12 inch drums you'd need the set part # AKFBBRK-7-D or if you had 10 inch part # AKFBBRK-35-D.
view full answer...
Do you have a question about this Trailer Brake?
Why etrailer.com?
At etrailer.com we guarantee:Real product know-how.
We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.Most detailed, accurate trailer brake information available.
Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.Installations, made easy.
We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.Fast shipping.
Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.Personalized service for life.
We provide one-on-one, personalized service from the ordering process through the life of your product.Trusted since 1946.
We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.Returns Policy
Need to return an item? No problem. Please read our Returns Policy for more information.
Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Adam R
Edited by:
Lindsey S
Video Edited:
Jacob T
Installed by:
Cole B
Installed by:
Shane H
Updated by:
Wilson B
Written by:
Alexander C
Video by:
Zach D
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-833-496-1390
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.