Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K

Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K

Item # AKFBBRK-7

lowest price pledge

Our Price: $139.43

Trailer Brakes

This item qualifies for Free Shipping

Shipping Weight: 29 lbs

Quantity: 
In Stock, Ships Today
etrailer 12 x 2 Inch Drum Trailer Brakes - AKFBBRK-7
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

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.

pop out icon replay 360 icon
horizontal rotate icon

Product Images

In Use/Installed


  • Hydraulic Drum Brakes
  • 5200 lbs Axle
  • 6000 lbs Axle
  • 7000 lbs Axle
  • 12 x 2 Inch Drum
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • 16 Inch Wheel
  • etrailer
  • Free Backing
  • Brake Set
Free-backing, driver's-side and passenger's-side brakes won't engage when you reverse, even if your actuator is activated. Automotive-grade friction pads and e-coated backing plates are long-lasting. Fit 14.5" to 16.5" wheels. Lowest Prices for the best trailer brakes from etrailer. Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K part number AKFBBRK-7 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (47)
  • Q & A (22)
  • Videos (2)
  • Photos
  • Why etrailer?

etrailer by AxleTek Trailer Brakes - AKFBBRK-7

Free-backing, driver's-side and passenger's-side brakes won't engage when you reverse, even if your actuator is activated. Automotive-grade friction pads and e-coated backing plates are long-lasting. Fit 14.5" to 16.5" wheels.


Features:

  • Hydraulic drum brake assemblies are designed for use with a surge-type trailer brake actuator
  • 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
  • E-coated backing plates resist wear and corrosion
  • 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 and right-hand (passenger's-side) brake assembly included
    • Mounting bolts and hardware (BRKH12) sold separately
  • QAI and CSA certified


Specs:

  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO
  • Dimensions: 12" diameter x 2" wide
  • Mounting flange bolt pattern: 5 bolt
  • Wheel size: 14-1/2", 15", 16" and 16-1/2"
  • Axle rating: 5,200 lbs, 6,000 lbs, and 7,000 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.



B12H-51 AxleTek 12" X 2" LH Hydraulic Brake Assembly - Free Backing - Drivers Side - 5.2K, 6.0K, 7.0K Axles - E-Coat

B12H-52 AxleTek 12" X 2" RH Hydraulic Brake Assembly - Free Backing - Passengers Side - 5.2K, 6.0K, 7.0K Axles - E-Coat





This Product Fits The Following Vehicles

2019 - 2019 Eclipse Iconic 5W Toy Hauler 2814SG

2017 - 2019 Eclipse Iconic 5W Toy Hauler 2817CKG

2011 - 2014 Heartland RV Big Country Fifth Wheel 2950RK

2016 - 2016 Forest River Sabre Fifth Wheel 295CK

2014 - 2019 Forest River Cedar Creek Silverback Fifth Wheel 29IK

2010 - 2019 Forest River Cedar Creek Silverback Fifth Wheel 29RE

2012 - 2013 Forest River Cedar Creek Silverback Fifth Wheel 29RK

2011 - 2012 Forest River Cedar Creek Silverback Fifth Wheel 29RL

2019 - 2019 Eclipse Iconic 5W Toy Hauler 3016SG

2013 - 2016 Heartland RV Big Country Fifth Wheel 3070RE

2011 - 2013 Forest River Cedar Creek Fifth Wheel 30RL

2017 - 2019 Eclipse Iconic 5W Toy Hauler 3117CL

2014 - 2017 Heartland RV Big Country Fifth Wheel 3150RL

2018 - 2019 Heartland RV Big Country Fifth Wheel 3155RLK

2016 - 2016 Forest River Sabre Fifth Wheel 315RE

2010 - 2010 Forest River Cedar Creek Silverback Fifth Wheel 31B

2011 - 2012 Forest River Cedar Creek Silverback Fifth Wheel 31B2

2017 - 2017 Forest River Sabre Fifth Wheel 31BHT

2019 - 2019 Forest River Cedar Creek Silverback Fifth Wheel 31IK

2014 - 2016 Forest River Cedar Creek Silverback Fifth Wheel 31RK

2018 - 2019 Heartland RV Gateway Fifth Wheel 3200RLS

2014 - 2015 Heartland RV Gateway Fifth Wheel 3200RS

2018 - 2018 Heartland RV Gateway Fifth Wheel 3211CC

2017 - 2019 Eclipse Iconic 5W Toy Hauler 3221CKG

2018 - 2019 Heartland RV Gateway Fifth Wheel 3230CK

2011 - 2013 Heartland RV Big Country Fifth Wheel 3250TS

2013 - 2015 Heartland RV Big Country Fifth Wheel 3251TS

2014 - 2014 Forest River Cedar Creek Fifth Wheel 32RL

2014 - 2016 Heartland RV Gateway Fifth Wheel 3300ML

2016 - 2016 Forest River Sabre Fifth Wheel 330CK

See All Vehicle Fits



Video of Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K


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




Video Transcript for etrailer Uni-Servo Free Backing Hydraulic Brake Kit Installation

Speaker 1: Today we're gonna be taking a look at the hydraulic brake kit U-Servo 00:00:02 free backing 12 inch left and right hand brake assemblies for five and a half thousand to seven thousand pounds. That's gonna be part number AKFBBRK-7.So here's what our brake assembly's gonna look like. The biggest benefit to our brake assembly here is that it is an entire assembly. We're not gonna have to worry about getting the hardware kit, a wheel cylinder, or anything else. As well as putting on the pads, they are hydraulic brake assemblies, which means they're gonna work with surge-type brake actuators.What's nice about these assemblies is that they have a free backing design. And what that means is, it's gonna let you back up without engaging the brakes, even if the actuator is activated.The fall-away brake shoe is only gonna anchor on the drum when the brakes are engaged, as the trailer is moving forward.The pads are gonna be fully bonded into the shoes and not riveted, which means that they're gonna give it a longer life and more of a bite on those brakes.The tapered edge at the bottom of our pad is gonna help prevent any kind of cracking and crumbling that can lead to a mechanical lock-up.Our brake assemblies are gonna have a fine tooth adjustment gear, and that's gonna allow us to fine tune our brakes, but it is a manual adjustment, so we are gonna have to check our brakes and adjust them periodically.There is gonna be a plug on the back that's gonna help keep out all the dirt and debris from getting inside, and this is right where we're gonna make our adjustments at.Now, the mounting flange bolt pattern is gonna be a five bolt, and it's gonna fit wheels 14 1/2, 15, 16, and 16 1/2 inch.Our brake assembly is gonna work with axles that are rated at 5,200, 6,000, and 7,000 pounds.Now, this is gonna include the left and right hand assemblies, so to start out, we're gonna go ahead and remove our drums so we can pull off this cap.

Just take a rubber mallet, and we're gonna tap it until it can come off. Put the cap aside for now. Now, on the top of the nut here, we're gonna clean some of the grease off, because there's gonna be a retaining clip that's holding it in place. Just take a shop towel and wipe off some of the excess grease so we can find that retaining clip.You're gonna want to grab a flathead screwdriver. There's gonna be a tab that's gonna be in between the two channels here, on the nut itself.

We're gonna bend that tab down, so that we can actually turn the nut and take it off. Now, you want to be careful, because our brake assembly is not gonna come with a retaining nut or washer, so you want to keep this hardware so we can re-install it.Next, we're gonna grab a pair of channel locks and we're gonna grab the nut and just loosely turn it so it'll unlock it. Then we can take it off by hand the rest of the way.Then we can pull off that retaining plate. We're gonna pull this off and set it aside, and then if you need to, again, grab a flathead screwdriver and we're gonna pull that washer off that's right behind it. So we're gonna grab the back of the hub, slowly pull it back, and we'll set the hub aside, as well.So what's gonna be holding our assembly in place is gonna be these nuts right here.

There's gonna be a total of five of them going around the axle shaft. We're gonna be using a 9/16 socket to remove them. Now, again, you want to hold onto the hardware that comes off, because our new brake assembly is not gonna come with hardware.And with the hardware removed, we are gonna have one last point that we're gonna have to pull off before we can pull the assembly out, and that's gonna be right here, where the brake line is actually attached.You need to tilt the assembly out so you can get a wrench in there to loosen that fitting.So we can take our new assembly. We're gonna slide it over the studs. Then we can reinstall those lock washers and nuts back in place.Just gonna put these in there hand tight for now, and then we can come back and tighten them all down.

With all the bolts in hand tight, I'm gonna come back and I'm gonna torque them down.So with this brake assembly in place, we're gonna go ahead and repeat that for the other remaining positions.And that will finish up your look at the hydraulic brake kit for the left and right hand side. And that's gonna be part number AKFBBRK-7.


Customer Reviews

Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K - AKFBBRK-7

Average Customer Rating:  4.8 out of 5 stars   (47 Customer Reviews)

Free-backing, driver's-side and passenger's-side brakes won't engage when you reverse, even if your actuator is activated. Automotive-grade friction pads and e-coated backing plates are long-lasting. Fit 14.5" to 16.5" wheels.

- AKFBBRK-7
by:

Got the 12" backing plates, have yet to install them. My past experience with Etrailer has been excellent! I am rebuilding a large boat trailer and they have had everything I needed to complete the job with great videos on how to install each component. They are the gold standard for an online business! 637918



- AKFBBRK-7
by:

The product was very good with minor shipping damage. I believe it would be better to ship in one box per axle instead of four backing plates in one box, that is where the damage came from. Your people were very friendly,& easy to work with. The product was exceptional quality. 588009



- AKFBBRK-7
by:

Quick delivery, good price, perfect match and fit. Thank you! 636979



- AKFBBRK-7
by:

Ordering was simple, shipping as promised, fit was perfect and products are still in use. Couldn't ask for more. 603166



- AKFBBRK-7
by:

perfect fit 599524



- AKFBBRK-7
by:

Very helpful on the phone and everything ordered fit perfectly! Thanks for all the help. 545610



- AKFBBRK-7
by:

Brake parts were awesome quality.Web site was easy to navigate.Shipping was fast. I highly recommend and will do business again! 543161



- AKFBBRK-7
by:

Great service 499753



- AKFBBRK-7
by:

GOOD PRICE , EXACTLY WHAT I NEEDED , TIME SAVER. 459163



- AKFBBRK-7
by:

My trailer brakes arrived on schedule completely assembled and ready for installation. In 2 hours I had new trailer brakes on my boat trailer working great. Thanks for the great service! 448158


Comments

My trailer brakes are still working great. Havent had to give this repair a second thought. Thanks

David V - 11/01/2018

45267

- AKFBBRK-7
by:

Detailed description and fast delivery 384457



- AKFBBRK-7
by:

perfection from start to finish 367477



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


You guys (Meghan this time) are always incredible. Thank you! 541887



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Bent pins on one assembly and had to be removed to straighten before installation. Seems to have been dropped some time during shipping or handling. 402187



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Product arrived, looks great. will be installing on a Workforce man lift. Thank you for quick delivery. 439711



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Easiest brake job I ever did! Complete assembly bolted to the trailer in the original position. No fussing around. Connected brake line, bled brakes and was rolling again. With free shipping, I couldn't go wrong. 394802



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Everything was there. All assembled. The only thing I did before I mounted the backing plates was to remove the adjuster wheel and take it apart and put some marine grease on the threads and under the cap. Other than that, I just bolted it on the axle, hooked up the brake line, and I was good to go. That easy. 251403



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great on phone help….. OK was very impressed that the 2 ladies I talked with on 2 different calls really knew their STUFF. Very impressed and ordered on Sat. del. on Wed. with tracking sent to me. Will be back when I break these in with new salt water. 375750



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


I Purchased hydraulic drum Brakes - Uni-servo backing plates form Lisa D at etrailer. I could not be more pleased. The items arrived when they were supposed to and were exactly what they were supposed to be. Lisa was very professional and knowledgeable, and followed up through email. I needed the items fast, and even after priority shipping, the cost was less than i could have found elsewhere. I will use etrailer again should the need arise. 366544


Comments

I am very pleased with the brake system. It is installed and functioning very well on a heavy duty equipment trailer which is often called upon to haul in excess of 10,000

Jeff B - 04/16/2018

37317

- AKUBRK-7
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Parts arrived on the date scheduled, the shipper for some reason couldn't find an address that they had delivered to before, this was not any fault of etrailer.com. All parts fit exactly as they should have and now hopefully I will not have to fix someone else's neglect again, as shown in some of my pics. But if I do I will use etrailer.com. Big thanks to Shawn for help above and beyond. 436057



- AKUBRK-7
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


This is my third time ordering from etrailer. I have been very pleased with their service, quality and pricing. Shipments have been very quick and packaging very professional. A very good company to do business with and they are highly recommended by me! 399495



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


First time order with etrailer.com and can't say enough about the experience. The website is top-notch, from excellent product description video presentations, easy order process and even visuals to provide shipping progress. Excellent assistance on product application and great follow-up customer service. Will not hesitate to order from etrailer in the future. Brakes are excellent quality and build and perfect fit. 661885



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


All parts fit and worked as listed in the catalog. 644890



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Good quality parts and materials and/or coatings that will resist the salt water corrosion. Easy swap in for the old parts. I was replacing a set where one brake pad was cracked (the new ones are bonded instead of riveted) and one where the hydraulic cylinder had blown out and drenched everything in brake fluid. Well worth the cost and well worth the additional cost for corrosion resistance if you launch in salt water. 588833



- AKUBRK-7
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


And a exactly fit 585075



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Changing out the brakes on my boat trailer was actually much easier, and cheaper thanks to these guys, than I expected. etrailer.com had every single part I needed and the videos explanations made selection easy. Will bookmark this site for sure. Cheers 572626



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Changing out the brakes on my boat trailer was actually much easier, and cheaper thanks to these guys, than I expected. etrailer.com had every single part I needed and the videos explanations made selection easy. Will bookmark this site for sure. Cheers 572709



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


I was initially concerned about finding the right parts as the trailer was fairly old. etrailer had just what I needed. The website is so elegant. I was able to find the right parts quickly and with comparative options to make a final selection. The how-to videos are great. This made installation a little more comfortable. Especially when you do not perform this type of work every day. The parts were of high quality and are working as expected. I highly recommend etrailer for any of your trailer needs. 544906



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


easy to install, held up well, no complaints, would recommend to friend, would buy again, easy to order correct part 497745



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


easy to install, held up well, no complaints, would recommend to friend, would buy again, easy to order correct part 497836



- AKUBRK-7
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great product . Deliver was good timing . Will order from etrailer again !!!! 441857



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great product . Rebuilt entire x4 installed with ease. 439268


Comments

Keep on Trailering. I Stand by your product from a year ago same Great product with service Teck was very informed.

Michael - 10/08/2018

44436

- AKUBRK-7
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Easy way to replace old and worn out brakes. Arrived in a couple of days and comes assembled as pictured. Make sure you measure the width of the brake shoe pad and inside diameter of your drum to match up the correct ones. 430749



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


The crew over etrailers work their butt off I ordered the wrong 12 inch backing plate with shoes it was already loaded on the truck they went out and pulled it from the truck and did not charge me and reordered and sent the right product it a ride fast 430470



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


I received some great advice and help from Leeza in selecting the correct product for my needs. Without serial numbers or identifiable model numbers on my existing trailer parts, she was able to determine the correct parts for my particular trailer needs (on a 25 year old trailer.whose manufacturer is no longer in business). I received the parts in the time span indicated upon ordering, and they fit perfectly. A good experience all around. 410338



- AKUBRK-7
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Easy installation. Great price. 400438



- AKFBBRK-7-D
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


The delivery was good and so was the pr oduct 390787



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Very good product. Saved a lot of $$$ installing myself. working fine in salt and fresh water. 359759



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Very good product. Saved a lot of $$$ installing myself. working fine in salt and fresh water. 362645



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


perfect fit good quality and great ser vice 358842



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


perfect fit good quality and great ser vice 362065



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great product Very fast service. 342752



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great product Very fast service. 344835



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great Product. Great company. Will do buisness with them again 320998



- AKFBBRK-7L
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Brake assemblies fit perfectly in place of the OEM Dexter brakes. Quality looks fine, aluminum wheel cylinders are a notable improvement. We'll have to wait another 10 years to see if these hold up as well as the US-made Dexters. 311632



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Brake assemblies fit perfectly in place of the OEM Dexter brakes. Quality looks fine, aluminum wheel cylinders are a notable improvement. We'll have to wait another 10 years to see if these hold up as well as the US-made Dexters. 314531



- AKFBBRK-7R
by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Everything worked as expected. 256172


53
53

Ask the Experts about this etrailer Trailer Brakes
Do you have a question about this Trailer Brake?


  • How To Determine If Your Trailer Has Free-Backing Brake Assemblies When Replacing a Surge Coupler
  • To find out if you have free backing brakes, there are really only two ways I can think of to test. First, if your coupler works, you can push your surge coupler to move your trailer in reverse. If the brakes apply, then you know you do not have free backing brakes. If you can move it easily, then your brakes are free backing. If your coupler is broken and thus the reason you are replacing then you will need to go to the second testing option. You will need to pull one of your hubs...
    view full answer...

  • Replacement Hubs, Brake Assemblies, and Tire/Wheel Combination for Old Trailer With Dexter Axles
  • I have replacement hub, brake, and tire/wheel options to replace what you have on your Dexter axle. They will fit the spindle measurements that you sent me of: A is 3" B is 2.125" C is 1.75" D is 1.25" E is 1" The replacement hub and drum assembly that fits that spindle is the Dexter Trailer Hub and Drum Assembly # 42866UC3. With this assembly you will need to purchase the grease seal # GS-2125DL which has the smaller I.D. of 2.125 inches. If you have E-Z Lube spindles on your...
    view full answer...

  • 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"...
    view full answer...

  • Recommended Trailer Axles for 83 Inch Wide Car Trailer
  • With an 83 inch frame, the spring locations could be at multiple points. If you are replacing axles, you will need to know your dimensions for the hub face to hub face length, the spring locations center on center, and the weight capacity you need. We do not carry any through axles that will fit your application, but we do have an Axle-less system that will work for you and you don't need the dimensions listed above. If 7,000 lb axles work for your application, I recommend the Timbren...
    view full answer...

  • Which Hubs Fit the Timbren Heavy-Duty Axle-Less Trailer Suspension # TASR35HDS06 with 2" Lift
  • The hubs that fit the Timbren Heavy-Duty Axle-Less Trailer Suspension # TASR35HDS06 use inner bearing # 25580, outer bearing # 15123, and a grease seal with a 2-1/4" inner diameter. For regular hub use part # AKIHUB-655-6-EZ-K but if you are wanting to incorporate brakes then you want hub and drum part # AKHD-655-6-EZ-K with the brakes # AKEBRK-7-SA for electric or # AKFBBRK-7 for hydraulic. I have attached some installation videos that you can reference as well.
    view full answer...

  • Replacement Axle and 5 Spoke Utility Hubs for Older Triple Axle Trailer
  • The Dexter Trailer Hub and Drum Assembly - 6,000-lb and 7,000-lb Axles - 12" - 5 Spoke Utility # 8-174-5UC3 are the only hubs we have with that bolt pattern to fit your wheels. Based on the measurements you gave, you will then use the Dexter Trailer Axle Beam with E-Z Lube Spindles - 89" Long - 6,000 lbs # 8327830. From the sound of where you measured to the center of your tire, any offset if you have one won't be much and will work with this combination. Then if you have electric...
    view full answer...

  • Parts Needed to Change a Triple Axle Kaufman Trailer from Electric to Electric Over Hydraulic Brakes
  • To change your electric brakes on your Kaufman trailer to an electric over hydraulic (EOH) system you will need to hydraulic brakes, brake lines, an EOH actuator, a breakaway kit (which you should already have), and a brake controller (which you should already have). I highly recommend going with the HydraStar EOH Actuator # HBA-12 which is one of the best options out there and has received great reviews from other customers. We hardly ever see any troubleshooting questions about these...
    view full answer...

  • Troubleshooting Brakes Locking Up When Backing on New Tandem Axle Trailer
  • It sounds like your new tandem axle trailer has a surge brake coupler. You will need to use the manual lockout on the coupler if there is one or add a Replacement Solenoid Valve for Titan Brake Actuators with Reverse Lockouts # T4748800. This electric lockout connects to a 5-way trailer plug like # HM47890, and an adapter like the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter # 20036 will connect to the reverse light circuit at your tail light to send a signal to that solenoid to...
    view full answer...

  • Recommended Electric Over Hydraulic Conversion for Dutchmen Voltage 3818 Toy Hauler Triple Axle
  • We do have the ability to convert your Dutchmen Voltage 3818 to Electric over Hydraulic brakes. First you will want the brake assemblies and for those, I recommend the Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K # AKFBBRK-7 (one kit per axle). Then you will need brake lines like the Deluxe Hydraulic Line Kit - Tandem Axle - Drum # 9579-2 along with the Hydraulic Line Kit, 3rd Axle - Drum and Disc # 9579-01. Then I recommend the HydraStar...
    view full answer...

  • 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.
    view full answer...

  • 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.
    view full answer...

  • Adding Electric Over Hydraulic Drum Brakes to a Trailer
  • With 6,000 pound axles they must take 12 x 2 inch assemblies. For a left and right side pair of assemblies you can use # AKFBBRK-7. We do not have an option for self-adjusting brakes in this size with a single-servo design. For an actuator I recommend the Hydrastar # HS381-9066. This unit is rated to 1,200 psi so it provides a little extra kick above the 1,000 psi units. Since you have a couple of 6,000 pound axles you're going to want the best to slow the loaded trailer down. It also...
    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 # T4500600. 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.
    view full answer...

  • Recommended Free-Backing Hydraulic Brakes for Surge Brakes Without Reverse Lockout
  • All 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...

  • Recommended Hydraulic Brake Assemblies, Actuator, And Brake Lines For Dual Axle RV
  • For your conversion to hydraulic brakes on your 7,000 lb dual axle RV, I recommend the Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K # AKFBBRK-7. These assemblies are side specific and are labeled for you. These will work with your current hub and drum assemblies. For installation and adjustment, you will want the Brake Adjustment Spoon for Drum Brakes # W80630. If you need the mounting bolts for these assemblies, I recommend # BRKH12. If...
    view full answer...

  • Replacement Drum and Disc Brake Kits for Tandem Axle Boat Trailer Used in Salt Water
  • We can help you with new brakes for your tandem-axle boat trailer that is used in a salt water environment. We offer both electric and hydraulic drum brakes. Electric brakes are more and more supplied as the OEM equipment on boat trailers. This is mostly due to their lower cost and generally far simpler installation than hydraulic brakes. However, we do not have any drum brakes of either type with stainless steel construction. We DO have disc brake kits with stainless components...
    view full answer...

  • Free-Backing Uni-Servo Hydraulic 12 x 2-inch Brakes for Military Trailer
  • The Hydraulic Brake Kit # AKFBBRK-7 is a set of left and right free-backing uni-servo hydraulic brakes rated for use on axles with weight capacities from 5200 to 7000-lbs. These 12 x 2-inch brakes use a 5-bolt mounting pattern to bolt to your brake flanges. You'll want to confirm that the axle rating falls within the range noted, that the mounting pattern matches too and that your wheel diameter falls in the compatible range of 14-1/2 to 16-1/2-inches.
    view full answer...

  • Can One 7K Timbren Axle-Less Suspension System Replace Two 3.5K Torsion Axles
  • As far as capacity goes you could switch out two 3,500 pound axles for one 7K Timbren Axle-less system such as # TASR7KS01. You would have to place the Axle-Less system right in the middle of where the two axles used to be to make sure the trailer load is properly supported. You will also need different hubs, wheels, and tires since everything will need to be rated high enough on just the one axle. The hub and drum assembly that is compatible is # 42866UC3-EZ. If the trailer has hydraulic...
    view full answer...

  • Recommended Brake Assemblies for 31 Foot Travel Trailer with Tandem Axles
  • For axles that are roughly 5,000 lbs each base on your 10,000 lb rating, you will need 12 inch brake assemblies for your 31 foot travel trailer. I recommend the Electric Trailer Brake Kit - Self-Adjusting - 12" # AKEBRK-7-SA. If you have hydraulic brakes, you will want # AKFBBRK-7 instead which is a free-backing brake assembly. These assemblies both work with the standard 5 bolt mounting flange on axles of this capacity level. If you meant that each axle was rated for 10,000 lbs,...
    view full answer...

  • Timbren Axle Less Kit Recommendation for Sea Ray Dual Axle Boat Trailer
  • We have Timbren Axle Kits like part # ASR5200S01 that are rated for 5,200 lbs which would work great on a 10k tandem trailer like what you have. Then for hubs we have the part # 8-201-5UC3-EZ which fits the spindles of this axle. Then for free-backing hydraulic drums we have the part # AKFBBRK-7 which would work great with your surge brake system. These are free-backing plates too so your trailer would be able to reverse without having the brakes lock up.
    view full answer...

  • 12 inch Brake Assembly Recommendation for Trailer with Hydraulic Brakes
  • We carry 12 inch trailer brake assemblies for hydraulic setups. For a set that includes both sides we have the # AKFBBRK-7 which will be a great option. This kit is designed for axles with capacities between 5.5k and 7k.
    view full answer...

  • Surge Brake Actuator Compatibility with Free Backing Brakes and Longer Dimensions
  • Your Demco Actuating Coupler # 8605001 to replace your Atwood coupler is a great choice even though it is 5 inches longer. As long as you have the 3 inch wide channel tongue and the 6,000 lb capacity is adequate for your trailer it will work just fine. The length of the coupler won't really change the tongue weight or anything else, so no need to be concerned. It will work perfectly with free-backing brake assemblies like # AKFBBRK-7 which are made to engage the same way as usual...
    view full answer...


Do you have a question about this Trailer Brake?




  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality trailer brakes for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • 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

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Edited by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Dustin K
Updated by:
Sarah W
Written by:
Alexander C
Photos by:
Stacy F
Video by:
Jonathan Y
Test Fit:
Robert C

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.