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  1. Trailer Brakes
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  3. Hydraulic Drum Brakes
  4. 5200 lbs Axle
  5. 6000 lbs Axle
  6. 7000 lbs Axle
etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K
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etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K

Part Number: AKFBBRK-7
In Stock
$147.88
Trailer Brakes
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Free-backing hydraulic drum brakes won't lock up when you back up, even if your actuator is engaged. 12" x 2" Assemblies have e-coated backing plates. Fit most 14-1/2" to 16-1/2" wheels. Great Prices for the best trailer brakes from etrailer. etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K part number AKFBBRK-7 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer by AxleTek Trailer Brakes - AKFBBRK-7

Highlights

  • Back Up Without Locking Up: Free-backing design lets you reverse freely even when the actuator is engaged.
  • Smooth, Consistent Stops: Automotive-grade bonded pads give steady braking torque and cut noise.
  • Fights Rust and Road Grime: E-coated backing plates and adjuster plugs keep debris and corrosion out.
  • Easy Bolt-On Fit: 12" x 2" left and right assemblies mount to 5-bolt flanges for quick replacement.
  • Built for Heavy Loads: Rated for 5,200-lb, 6,000-lb, and 7,000-lb axles with 14-1/2" to 16-1/2" wheels.
  • Certified Safe Design: CSA, QAI, and SAE-N tested assemblies meet strict performance standards.

Features to know about

Back Up Smoothly Without Brake Lockup: Free-Backing Hydraulic Design

These 12" x 2" free-backing hydraulic drum brakes make reversing easy, even when your surge actuator doesn’t have a reverse lockout. The uni-servo setup prevents the shoes from catching in reverse, so you can move freely without wheel drag or lockup. It’s a simple fix for smoother maneuvering when backing into tight spots or launching on a ramp.

Reliable Braking Power for Heavy Loads: Automotive-Grade Friction Material

Each assembly uses automotive-grade friction material that’s fully bonded to the brake shoes for consistent torque and quiet stops. The pads are SAE-N certified and deliver high braking performance while being environmentally friendly. Tapered edges help prevent stuttering and lockup, giving you confident, controlled braking under load.

Close-up view of a 12-inch hydraulic drum brake assembly from etrailer showing tapered bonded brake pad for smooth operation and reduced wear.

Built to Withstand the Elements: E-Coated Backing Plates

The e-coated backing plates fend off rust and corrosion from road grime and moisture. Sealed adjuster plugs keep dirt and debris out of the internals, extending brake life and maintaining smooth operation over time. It’s a durable choice for trailers that see varied weather or storage conditions.

Straightforward Fit for Common Axles: 5-Bolt Mounting, 5.2K–7K Rating

These brakes bolt directly to a standard 5-bolt mounting flange and fit most hub-and-drum assemblies from Dexter, Lippert (LCI), and AL-KO. They’re rated for 5,200 lb, 6,000 lb, and 7,000 lb axles and work with 14-1/2", 15", 16", or 16-1/2" wheels. Left-hand (driver’s side) and right-hand (passenger’s side) assemblies come ready to install—just add mounting hardware like #BRKH12 for a complete setup.

Tested for Real-World Safety: CSA, QAI, and SAE-N Certified

These assemblies are thoroughly tested to meet CSA, QAI, and SAE-N standards for performance and safety. Each set is proven under real braking conditions to ensure dependable stopping every time you tow.

Instructional image showing how to manually adjust a trailer drum brake using an adjustment tool inserted through the backing plate.

Specs

Application

  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO

Dimensions

  • Dimensions: 12" diameter x 2" wide

Mounting

  • Mounting flange bolt pattern: 5 bolt

Wheel Compatibility

  • Wheel size: 14-1/2", 15", 16" and 16-1/2"

Weight and Capacity

  • Axle rating: 5,200 lbs, 6,000 lbs, and 7,000 lbs

Warranty

  • Limited warranty: 1-year

Annotated diagram of an etrailer hydraulic drum brake assembly showing labeled internal parts that enable free-backing function during reverse movement.


B12H-51 etrailer by AxleTek Hydraulic Drum Brake Assembly - Free Backing - LH - Driver Side - 12" x 2" - Manual Adjust - 5,200 lbs to 7,000 lbs

B12H-52 etrailer by AxleTek Hydraulic Drum Brake Assembly - Free Backing - RH - Passenger Side - 12" x 2" - Manual Adjust - 5,200 lbs to 7,000 lbs





Customer Satisfaction Score:

Ratings & Reviews

4.8

269 reviews
5 Stars
(226)
4 Stars
(34)
3 Stars
(3)
2 Stars
(1)
1 Star
(5)
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by:
I ordered and received 2 sets of brake assemblies (2 lefts / 2 rights). Even though the shipping department did an excellent job on packing, 1 left was damaged in shipping. I sent photos of the concealed damage. Christine got a replacement sent the next day. Great service. Thank you Christine for your prompt response.
by:
I wish you could provide for all my automotive part needs. Every aspect of this shopping experience has been amazing. Product application and actual images of parts, availability, shipping and tracking. You have done it all. My experience has been both by phone and online during this transaction and I'm thrilled with both. You will be my go-to for future trailer part shopping.
by:
Always a pleasure dealing with etrailer for any trailer parts, There website is user friendly and quick delivery service.
by:
Thank you the review is they Bolt right up I was about to buy Wheel cylinders, shoes and hardware! STOP! Buy the complete units you're going to be happy you did! etrailer you Rock!
by:
Fit perfect
by:
Fast service good price
by:
Direct fit, easy Install! Shipping was on time and packages well
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!
David V. profile picture

David V.

11/1/2018

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

by:
The parts were an exact fit and have been working flawlessly FOR ABOUT a year now.
I've purchased parts from Etrailer a number of times and I have not been disapointed. I will continue buying from Etrailer when I need items they cary.
by:
Parts arrived in very good condition .they fit perfectly and work very well. used the parts to restore failed surge brakes on an old utility trailer I am very happy with the parts and service thank you very much
Thomas profile picture

Thomas

10/9/2023

Brakes have been working very well. No problems Being able to bolt these on saved a lot of work and time

Mike L. profile picture
Etrailer Expert

Mike L.

11/2/2023

@Thomas We're glad your # AKFBBRK-7 brake assemblies continue to work well for you!
by:
They installed easily and worked perfectly after some miles I adjusted them and they stop confidently.
by:
I've got a boat trailer and knew the previous owner didn't do much with bearings or brake inspection. I ordered both left and right, assuming both had potential to be in poor condition. Only the left side was worn out, the right only needed bearings repacked and cleaned up. The left went on perfect, new bearings and seal, back to new condition. I adjusted them and waited for Summer to come in order to get back boating. It's been 3 months of use and on my last trip to the lake my wife said the left side is "making noise". I listened and sounded like the brakes were dragging pretty bad. Not bad enough to stop but I could tell the pads were engaging the drum way more than they should be. I drove home and disassembled and found the brake adjuster was broken in pieces causing the pads to expand out at the bottom. No idea how this happened or why. I'm hoping it's a fluke as I ordered another one to replace and will give this assembly one more try. I hate to rate this poorly but given I don't know how it happened, I can only assume it was a manufacture problem, crack in the parts maybe. I guess the next assembly will be the test. Always had good luck with parts and support, disappointed with the failure.
Heather A. profile picture
Etrailer Expert

Heather A.

9/5/2024

Hi Ben, I am curious did the other side of your trailer also have free backing brakes? The side you didn't replace?

by:
We received order, however We received 2 rights only, not a left and a right.
Please call Us as soon as possible to let Us know when this can be corrected and redelivered correctly.
Order received was item # B2H-52
by:
12" hydraulic drum brakes arrived protected in a well packaged box. Brakes were just as described and very easy to install. I have no hesitation ordering from etrailer again.
by:
2011 Ford F-250 and F-350 Super Duty
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.
by:
Great alternative to putting OE Dexter brakes on. Saved us over $1000 on each of our trailers that needed brakes replaced!
by:
After calling around to Napa, Koi and 2 other trailer companies and not receiving any help I called etrailer and got in touch with Quinn. I explained what I was needing, and he not only found me the right parts, but he also told me about the house brand which was a cheaper option. Everything showed up in 2 days and fit perfectly.
by:
2015 Ford F-150
Brakes arrived quickly and in excellent condition. The description provided by etrailer matched exactly what I needed. Worthy of five stars. Thank you
by:
Ordering was simple, shipping as promised, fit was perfect and products are still in use. Couldn't ask for more.
by:
Brake parts were awesome quality.Web site was easy to navigate.Shipping was fast. I highly recommend and will do business again!
by:
The parts look nice. I have yet to have a chance to install. Ask me again in a week.
by:
This brake kit has not been used yet. We are building up a trailer. The mechanic looked them over and says they are great. Thank you!!!
by:
Product was exactly as described. Installation was easy.
by:
Easy to install and fit was perfect etrailers is my go to now for trailer parts
by:
ETrailer CUSTOMER SERVICE VERY HELPFUL
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