Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs

Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs

Item # AKFBBRK-35-D

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Our Price: $136.81

Trailer Brakes

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Shipping Weight: 19 lbs

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etrailer Hydraulic Drum Brakes - AKFBBRK-35-D
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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 13" to 15" wheels. Lowest Prices for the best trailer brakes from etrailer. Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs part number AKFBBRK-35-D can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (165)
  • Q & A (51)
  • Videos (1)
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  • Why etrailer?

etrailer by AxleTek Trailer Brakes - AKFBBRK-35-D

  • Hydraulic Drum Brakes
  • 3500 lbs Axle
  • 10 x 2-1/4 Inch Drum
  • 13 Inch Wheel
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • etrailer
  • Free Backing
  • Brake Set

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 13" 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: 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.


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







Video of Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right 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 - Hydraulic Drum Brakes - AKFBBRK-35-D Review


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   (165 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 13" to 15" wheels.

- AKFBBRK-35-D
by:

I needed drum brakes quickly so I could get my boat in the water. They were helpful in getting the right parts quickly. 621675



- AKFBBRK-35-D
by:

Ordered the brakes and two days later they were here! Haven’t installed them yet. Did notice they don’t come with the nuts for mounting but that’s easy. 655844



- AKFBBRK-35-D
by:

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. 562004



- AKFBBRK-35-D
by:

these unit are replacing old units on a boat railer, first time having trailer brakes. Looking forward to getting the trailer up and running. etrailer is making it easy and affordable. 376859



- AKFBBRK-35-D
by:

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. 545454



- AKFBBRK-35-D
by:

At first had a little problem with my credit card authorization. You all made sure that it went thru and notified me right away to let me know it would ship on time. Not only was the product shipped quickly, but was packaged well and fit perfectly. No problems what so ever. From someone that works in the service industry, you all are an example to others on how it should be done. From the website videos to the support to the front door, excellent job!!! Will order again!!! 526855



- AKFBBRK-35-D
by:

These backing plates were a great fit, good quality for the price and easy to adjust. The packing job e-trailer did for shipping was great. 658639



- AKFBBRK-35-D
by:

Matched and replaced the OEM brakes on our boat trailer with no issues. The directions which came with them the brakes were not clear on which way to turn the "Brake Adjustment Star" for adjusting the contact of the brakes. The directions did not indicate rotation of the Adjustment Star being different from the left to right side brakes. This created some confusion due to the left side adjusted with no issue but cause the right side to be difficult until correction direction of rotation was determined. These brake work great and we are very pleased with all the other products we have purchased from etrailer.com 542275



- AKFBBRK-35-D
by:

Very, very prompt shipping! Customer svc rep very knowledgeable about hydraulic trailer brakes. Packaging ensured product arrived without damage. TWO NOTES: The brake line threads were not "well cut" on the right side wheel cylinder. To solved needed to "re-tap" the threads-- additional time required-- To make kit 'complete'--add 8 lock nuts to the package--will add about $0.80 to the kit and solve customers frustration of trying to find lock nuts with 5/8" across the flats. 11/16" across the flats will not work as too close to the welded axle on the mounting flange 385816


Comments

Thanks for the follow up and reply. I did want to let you know that part BRKH10B is available and is linked as a related item. This item included 8 nuts and lockwashers.

-- Rachael H - 09/14/2017

28202

- AKFBBRK-35-D
by:

all parts fit very well, will order again in the future 606499



- AKFBBRK-35-D
by:

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 590297



- AKFBBRK-35-D
by:

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! 352521



- AKFBBRK-35-D
by:

Great brakes, work very well. Bolts would be helpful, 7/16 -20 bolts are a hard find, had to go to a specialty hardware store to find them. 505415


Comments

The brake assemblies use integrated studs to attach to the brake mounting flange, not bolts, as stated in the product description. Lock washers and 716 inch nuts are available as part # BRKH10B
Mounting Hardware for 10" Brake Assemblies
$6.14
. Each set includes enough nuts and lock washers for attaching two brake assemblies.

-- Mike L - 05/09/2018

38340

- AKFBBRK-35-D
by:

Great replacement-first time brakes have worked correctly on my trailer in 15 years 729441



- AKFBBRK-35-D
by:

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! 725321



- AKFBBRK-35-D
by:

GOOD QUALITY, EASY TO INSTALL 711903



- AKFBBRK-35-D
by:

Brakes work exceptionally well, I would buy them again for my next project boat trailer !!!! 699378



- AKFBBRK-35-D
by:

High quality with very fast shipping. I will be a definite return customer! 696930



- AKFBBRK-35-D
by:

Exactly what was needed. 692256



- AKFBBRK-35-D
by:

Thanks to help from etrailer in finding the right parts - these were a perfect fit. My boat trailer sees lots of saltwater and these are holding up really well. 691321



- AKFBBRK-35-D
by:

I had a wheel cylinder leaking and instead of replacing just one I figured the other one will go bad in time so why not replace everything with new backing plates, brake shoes, and wheel cylinders. To me it was a good investment and one less worry on my boat trailer ( trailer is a 1990) . Everything works great and well worth the money. 690972



- AKFBBRK-35-D
by:

Great brake assembly's easy to install. Have had no problems in the year since installing them. It's nice being able to get everything at one place at etrailer. 687023



- AKFBBRK-35-D
by:

Easy install and quick delivery. 683155



- AKFBBRK-35-D
by:

christopher N worked with me to find the correct parts to replace the brakes on my boat trailer. Pricing was excellent. shipping was awesome Very Quick. Since I am using this trailer in salt water, I went with the galvanized units. Perfect fit installed in about two hours. Thank You Chris 679371



- AKFBBRK-35-D
by:

They look very good! Have not installed yet. 678280



- AKFBBRK-35-D
by:

These units are of superb quality and easy to install' I choose the marine units because of the road salt here in PA. I would buy them again in a heart beat. VERY SATISFIED1 677587



- AKFBBRK-35-D
by:

etrailer has great products with fast and reliable service. I buy all my trailer supplies from them. I bought 2 hubs and drums for my boat trailer. I was going to give 4 stars because they did not include the 4 nut and bolts that hold the hub to axle with the product. (the old ones were so rusted they broke off), at the least they could offer for you to purchase them with hub. but I gave 3 stars because I went back to the reviews and others complained about the same thing. problem should have been fixed back then!! 673643


Comments

The mounting hardware, part # BRKH10B
Mounting Hardware for 10" Brake Assemblies
$6.14
is sold separately as mentioned in the product description.

-- Mike L - 07/24/2019

58171

- AKFBBRK-35-D
by:

Great service, good product 673327



- AKFBBRK-35-D
by:

Great just what I needed thank you 672889



- AKFBBRK-35-D
by:

Fastest brake job ever. This will be the way I do it going forward. Bolts right on. 660334



- AKFBBRK-35-D
by:

Brakes worked out well. Priced right, easy to install/adjust and resolved my trailer brake issue. 654715



- AKFBBRK-35-D
by:

Easy to install! Now I have working bra kes 652174



- AKFBBRK-35-D
by:

My new 10 inch hydraulic brakes are fantastic. They came with a new backer plate and cylinder all ready to go. I also bought new drum hubs and bearings because on my last fishing trip, I barely made it to the driveway before the hub melted to the axle. With an 18 foot Princecraft boat loaded on a 3500 pound axle, that would not be a pretty site 100 miles from home. I was lucky and even luckier to find the etrailer website which had all my trailer needs. Keep on fishing! 652115



- AKFBBRK-35-D
by:

Great product and fast shipping. 649172



- AKFBBRK-35-D
by:

A nice way to go if you have brake issues. Perfect fit and easy to install. 645323



- AKFBBRK-35-D
by:

Great fit and quality. Easiest way to do brakes on the trailer. 643650



- AKFBBRK-35-D
by:

Excellent product for my boat trailer. I really like the backup disengage feature for a boat trailer. No more getting out to lock out at the hitch. Definitely can feel the trailer doing more of the stopping now with these brakes. 643050



- AKFBBRK-35-D
by:

Fit and works as they should 642202



- AKFBBRK-35-D
by:

Speedy shipping, excellent product. Fits great and works great! 640423



- AKFBBRK-35-D
by:

Received quickly and work great. 637583



- AKFBBRK-35-D
by:

It was a great experience to deal with this company. The product fit perfectly. I try to stay away from internet. I would highly recommend your company to anyone . You exceeded your delivery time which was nice. I am working on a car dolly. Total rehab Thank you 629290



- AKFBBRK-35-D
by:

Easy to install....Works as designed 625339



- AKFBBRK-35-D
by:

Have not install them yet, but they look great. I'll let you know when I get them install. 613355



- AKFBBRK-35-D
by:

When ordering, be aware you're ordering a set of two. I did not find this clear on the website, and thus ordered quantity 2, which means I received 4 brakes. Had to pay a $30 shipping charge to return the other two. Additionally: one of the brakes when installed did not fit the hub. I adjusted them all the way in, but the brake shoe simply hung up on the hub no matter what I did. I swapped it out for one of the extras I'd ordered and it went right on. So your mileage may vary. 613165



- AKFBBRK-35-D
by:

Brakes kits are easy to install. The videos do a great job explaining how to to adjust the brakes 610882



- AKFBBRK-35-D
by:

Great product ! Install went great. 607413



- AKFBBRK-35-D
by:

After having to replace my trailers brake system every other year I looked for a rust resistant brake system and one that does not lock up when I back up is a bonus. Fast order processing and free shipping how can you beat that! 583509



- AKFBBRK-35-D
by:

1.: Lightning fast free shipping. 2.: Great hours for customer service 3.: Staff really knows their stuff.! 4.: Web page search is fast and user friendly. 552462



- AKFBBRK-35-D
by:

Great customer service. Good prices and delivered ahead of schedule. 547185



- AKFBBRK-35-D
by:

My hydraulic brake kit arrived in a very timely way. Great customer service! The four mounting bolts are pressed into the back plate. But the kit doesn't come with the appropriate nuts. Ah, nuts! Back to the hardware store. 545794


Comments

The installation hardware is sold separately as part # BRKH10B
Mounting Hardware for 10" Brake Assemblies
$6.14
.

-- Mike L - 07/25/2018

41472
56
173
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Ask the Experts about this etrailer Trailer Brakes

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  • Comparing Different Hydraulic Trailer Brakes for Boat Trailer
  • Essentially yes, all of them will work for your trailer assuming you have 3,500 pound axles and a 4 bolt mounting flange. However, there are some differences between the brake assemblies you mentioned. The # AKFBBRK-35 are free-backing brakes, meaning they will not engage when reversing with your trailer. If your trailer has a reverse lockout on it then this feature is not necessary. They're coated with an e-coat used for corrosion resistance. The Demco brakes # 40716-15 are galvanized...
    view full answer...

  • Comparing Free Backing and Duo Servo Hydraulic Brake Assemblies
  • Good questions. The difference between free backing brakes like the # AKFBBRK-35-D and regular hydraulic drum brakes like # DMSB18794M-93M (referred to as duo or duel servo) is that the wheel brake cylinder has pistons on both sides of the regular/duo servo brakes instead of just the one side on the single servo free backing assemblies. The amount of braking doesn't change much between them, they just function differently yet under the same amount of hydraulic pressure. The duo servo...
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  • How to Find Replacement Drum Brake Assembly for Boat Trailer
  • I can tell you exactly how to find compatible drum brake assemblies, though I took a look and could not find any type of reference to Dico 40511. To determine the brake assemblies that will fit your 2002 Escort boat trailer, you need to know your axle's weight capacity, your mounting flange bolt pattern and the inside diameter and depth of your drum. For example, Hydraulic Brake Kit # AKFBBRK-35-D are rated for 3,500 lb axles, have a 4-bolt mounting flange pattern and measure 10"...
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  • Difference Between Demco 10 inch Drum Hydraulic Brakes and etrailer.com Brand Brakes
  • The big differences is basically pricing and brands. The part # AKFBBRK-35-D is a pair of Dacromet coated drum, hydraulic brakes that are free-backing. The part # 40716-15 is essentially the same thing buy made by Demco. The etrailer brand is going to cost less since it's our brand and there's not as much markup so it's the better deal. Now the part # 40716-15 is basically just the part # 40716 and # 40715. What doesn't make much sense though is the pricing difference. It would seem...
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  • Drum Brake Replacement Assemblies for Use with Titan Actuator
  • Thanks for the photo and tape measure. That makes it fairly easy to help you get what you need. You need 3500 lb single servo brake assemblies. My recommendation is the Hydraulic Brake Kit - Dacromet - 10" - Left/Right Hand # AKFBBRK-35-D. The Dacromet is for increased corrosion resistance. You could alternatively use the Hydraulic Trailer Brake Kit # AKFBBRK-35 for a standard protection against corrosion or even upgrade to the Demco Galvanized set # 18788-87 for superior rust...
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  • Replacement Brakes and Bearings for 1993 Mastercraft Boat Trailer
  • Before you choose brakes or bearings you should verify what's currently on your trailer. If it is a 3,500 pound axle part # AKEBRK-35-SA will likely fit if the trailer has electric drum brakes. Both sides are included and labeled. They're also self-adjusting so you only need to set the adjustment when you first install them and then leave them alone. You can measure the inner diameter of your drums to find if this fit or not. One of two bearing kits is likely what you need. You should...
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  • How To Determine If Boat Trailer has 10 Inch or 12 Inch Brake Assemblies
  • When determining if you need 10 inch or 12 inch brake assemblies there are a couple of easy things to check to confirm the fit for your trailer. The first thing is you can measure the diameter of your hub. The second thing is you can look at the brake flange, if it has 4 bolts then it is 10 inch if it has 5 then it is 12 inch. Because you know you have a #84 spindle we can be confident that you have a 3,500 lb axle and you will need the 10 inch assemblies. I recommend the Hydraulic...
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  • Recommended Electric Lockout or Free Backing Brake Assemblies for Surge Brake Actuator
  • The Titan Zinc-Plated Brake Actuator - Drum - 2-5/16" Ball - Bolt On - 8,000 lbs # T4079200 does not have a manual lock-out. Because of this, it is recommended to use an electric lockout like # T4748800 or free backing brakes so that you can back your trailer without activating the trailer brakes. You can use the Hydraulic Brake Kit - Uni-Servo - Free Backing # AKFBBRK-35-D for 10 inch assemblies or # AKFBBRK-7 for 12 inch assemblies.
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  • Replacement Wheel Cylinder for Uni-Servo Free Backing Brake Assemblies
  • Your old Hydraulic Trailer Brake assembly # AKFBBRK-35L can use the Uni-Servo Wheel Cylinder # AKBRKR-H7-L-CR. These are corrosion resistant coated but not aluminum. Another option is to upgrade your entire assembly to the Hydraulic Brake Kit - Dacromet # AKFBBRK-35-D. This rust resistant coating will be on the backing plates, the springs are stainless steel, the cylinders are aluminum and they are designed for marine use.
    view full answer...

  • Free-Backing Trailer Brakes and Actuator Recommendation
  • The pros and cons of electric lockout vs free backing brakes mostly comes down to the ease of installation in not having to wire up your actuator to brakes; I also prefer a system where it is easier to troubleshoot issues and has less "moving parts". For those reasons I recommend going with the free-backing brake system as opposed to going with an electric lockout actuator. For a new actuator I recommend the Demco Hydraulic # 8605001 . This is a great replacement for the Atwood 61101 and...
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  • Should Hydraulic Brakes be Replaced by Electric Brakes on Boat Trailer
  • Since you have a boat trailer I recommend sticking with hydraulic brakes. This will not only be the easiest for you in order to make replacements but hydraulic brakes are the best for boat trailers because electricity and water don't mix particularly well. I'm not sure if you have hydraulic disc brakes or hydraulic drum brakes but I have added a link to our entire selection of disc brake assemblies such as the Kodiak # K2R35D along with our disc brake actuators such as the Titan # T47154107K. I...
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  • Recommendation For Brakes And Drums For WT20GAB Boat Trailer
  • Based on the information you sent, it looks like your inner bearings are Item # L68149 and outer bearings are Item # L44649 which are common for 3,500 lb trailer axles. I did not see in part descriptions the bolt pattern of your wheels but the most common patterns are 5 on 4-1/2, 5 on 5-1/2, and 6 on 5-1/2. I will make recommendations for all based on these bearings sizes. I have attached an article on "how to measure bolt patterns" in case you need it. For a 5 on 4-1/2 bolt pattern,...
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  • Replacement Hub and Drums and Brakes for EZ Loader Boat Trailer
  • If you are going to replace the axles and hubs then our hubs will come with the proper bearings. But in order to determine the correct bearings you would either need to replace the axles first and then tell me which axles you have so I can find hubs to match or if the axles are exactly the same as the old axles you could tell me the inner and outer bearing numbers stamped into the sides of the bearings. I checked the EZ loader site and did not see replacement axles as an option so I...
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  • Replacement Timbren Axle-Less System and Hydraulic Brake Assembly for 3,500 lb Axles on Boat Trailer
  • I would love to help you upgrade your suspension components! I am guessing that you have 3,500 lb axles on your trailer but if you could verify that it would help me to make sure that I recommend the correct parts for you. Also, are you looking to add brakes to both axles or just keep them on one pair? You would get more braking power and less wear with brakes on all of the axles but if you only want them on one then that will also play into the parts.
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  • How to Determine Which Hydraulic Brakes to Use on a Trailer
  • There 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...
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  • Complete Hydraulic Drum Brake Kit for Boat Trailer With 3,500 lb Axles
  • I would need some more information before setting you up. What is your axle's weight capacity? Do you have an idler hub or hub and drum? What size are your wheels? I'm going to send you a link to a couple of help articles on what you'll need to add brakes and if you can get back to me with more info I'd be more than happy to help.
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  • Recommended Replacement Brake Assemblies For Eagle Trailer Drum Brakes
  • We have a few product options to replace your brake assemblies. I recommend the Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs # AKFBBRK-35-D. This will give you both assemblies for one axle. These are free-backing so you can back up with your trailer without engaging the trailer brakes. They are marine-grade and designed for boat trailers. The dacromet coating offers corrosion resistance. Another really nice option is the similar brake...
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  • Replacement Brake Assemblies and Brake Line for 3,500 Hydraulic Trailer Brakes
  • Do you by chance have a 3,500 ALKO axle 8500? Or an 8,500 lb axle? I believe you'd have the 3,500 lb axle but wanted to be sure. For 3,500 assemblies you'd want the part # AKFBBRK-35-D as replacing all of the individual parts you mentioned would end up costing more and be more labor intensive. For a brake line kit then we have the part # 9504 which would fit and work well.
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  • How to Determine Which Drum Brakes to Get
  • There 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...
    view full answer...

  • Bolt Hole Spacing of 4-Bolt Brake Mounting Flange for 10 Inch 3,500 Pound Hydraulic Brake Kit
  • The 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.
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  • Does Demco Hydraulic Drum Brake Actuator 8605001 Have a Reverse Lockout Feature
  • Titan brake actuator # T4500600 does have a manual reverse lockout feature to let you back up the trailer without the brakes engaging. The lockout device can be seen in the linked review video at the 40-second mark. The other actuator coupler you mentioned, Demco coupler # 8605001 does NOT have any type of reverse lockout feature, neither a manual one like the Titan nor an electric type. Backing up a trailer that has a hydraulic surge coupler with no lockout will require free-backing...
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  • 3,500 lb Free-Back Hydraulic Brake Assembly Recommendation for Trailer
  • For free backing, hydraulic drum brake assemblies that are 3,500 lb capacity we have assemblies that are 10 inch by 2-1/4 inch like the part # AKFBBRK-35-D which comes with assemblies for both sides of the trailer. We don't have anything that's 1-3/4 inch wide for a 3,500 lb axle.
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  • Difference Between Single, Dual and Free Backing Servo Brake Assemblies
  • The 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...
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  • Proper Way to Adjust Brake Assemblies of Hydraulic Brake Kit # AKFBBRK-35-D
  • The 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.
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  • Can Mounting Studs be Removed from Hydraulic Brake Assemblies AKFBBRK-35-D
  • The four mounting studs on Hydraulic Brake assemblies # AKFBBRK-35-D are not removable. These are press-fit for a permanent installation. For a similar brake without studs you can use Demco kit # 40716-15. These brakes are also free-backing galvanized finish left- and right-hand brakes for 3500-lbs axles.
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  • Hydraulic Drum Brake Assembly Recommendation for Dexter Hubs # 8-247
  • The 8-247 Dexter hub that you have is our part number # 84546UC3 which has drum dimensions of 10 inch diameter by 2-1/4 inches wide. That means that the Hydraulic Brake Assembly Set part # AKFBBRK-35-D that you mentioned will fit and work well. 45 to 50 lbs is the recommended torque rating for the 4 bolts that hold 10 inch brake assemblies like these.
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  • Choosing Replacement Trailer Brakes, Hubs and Actuator for 1978 Calkins Tandem Axle Boat Trailer
  • You'll want to check a few details on the trailer so you can select compatible replacement parts. First, you want to confirm the axles' rated capacity; this should be noted on a sticker or plate on the axles themselves. Based on the info you provided it may be that you have two 3500-lb axles. Your brakes and hubs must match the axle rating. Next you'll want to take note of the size of the current brakes. You need to confirm the diameter and depth. You also want to note their mounting...
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  • Does the Hydraulic Brake Kit Come With One or Two Brake Assemblies
  • The 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.
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  • Recommendation For Replacement Brakes For 1997 MacGregor 26X Sailboat Trailer
  • We will be glad to help but unfortunately there are all kinds of options and possibilities. The best way to find the right replacement brakes is to find the weight capacity of your axle (see attached picture), the size of your brake mounting flange (4-bolt pattern most common), and your drum diameter for drum brakes and rotor diameter for disc brakes. If your trailer has a 3,500-lb axle with drum brakes and a 4-bolt brake flange, I recommend something like the Hydraulic Brake Kit,...
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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Cole B
Updated by:
Sarah W
Written by:
Alexander C

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