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

Item # AKFBBRK-7

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Our Price: $142.78

Trailer Brakes

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etrailer trailer brakes 12 x 2 inch drum 5200 lbs axle 6000 7000 hydraulic brake kit - uni-servo free backing left/right hand assemblies 5.5k to 7k
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AKFBBRK-7 - 5200 lbs Axle,6000 lbs Axle,7000 lbs Axle etrailer Trailer Brakes
AKFBBRK-7 - Free Backing etrailer Hydraulic Drum Brakes
etrailer 14-1/2 Inch Wheel,15 Inch Wheel,16 Inch Wheel Trailer Brakes - AKFBBRK-7
etrailer Trailer Brakes - AKFBBRK-7
etrailer Hydraulic Drum Brakes - AKFBBRK-7
etrailer 14-1/2 Inch Wheel,15 Inch Wheel,16 Inch Wheel Trailer Brakes - AKFBBRK-7

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  • 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 (34)
  • Q & A (15)
  • Videos (1)
  • 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 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






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 Trailer Brakes AKFBBRK-7 Review


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   (34 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:


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



- 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:


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



- AKFBBRK-7

by:


Detailed description and fast delivery 384457



- AKFBBRK-7

by:


perfection from start to finish 367477



- AKFBBRK-7

by:


Great service 499753



- 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



- 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

- 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



- 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



- 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


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-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



- 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


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-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-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



- 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-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



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



- 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-7R

by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Great product . Rebuilt entire x4 installed with ease. 439268



- 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


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



- AKUBRK-7

by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Easy installation. Great price. 400438



- AKFBBRK-7R

by:

Review from a similar etrailer FreeBack 12 Inch in Trailer Brakes


Everything worked as expected. 256172


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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...

  • 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 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...


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Info for this part was:

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

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