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  1. Trailer Brakes
  2. etrailer
  3. 10000 lbs Axle
  4. Electric Drum Brakes
  5. 12-1/4 x 3-3/8 Inch Drum
  6. 16 Inch Wheel
  7. 16-1/2 Inch Wheel
  8. 17 Inch Wheel
  9. 17-1/2 Inch Wheel
Electric Trailer Brake Kit w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right Hand - 10K

Electric Trailer Brake Kit w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right Hand - 10K

Our Price: $269.37
Trailer Brakes
This item qualifies for Free Shipping
Shipping Weight: 38 lbs
etrailer Electric Drum Brakes - AKEBRK-10
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Self-adjusting electric brakes measure 12-1/4" x 3-3/8". Brake pads are made of durable friction material for improved braking. E-coated backing plates resist rust. Dust shields protect from debris. Fit 15" or larger wheels. Lowest Prices for the best trailer brakes from etrailer. Electric Trailer Brake Kit w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right Hand - 10K part number AKEBRK-10 can be ordered online at or call 1-800-496-5010 for expert service.
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  • Reviews (118)
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etrailer by AxleTek Trailer Brakes

  • 10000 lbs Axle
  • Electric Drum Brakes
  • 12-1/4 x 3-3/8 Inch Drum
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Camper
  • Car Hauler
  • Utility Trailer
  • Self Adjust
  • etrailer

Self-adjusting electric brakes measure 12-1/4" x 3-3/8". Brake pads are made of durable friction material for improved braking. E-coated backing plates resist rust. Dust shields protect from debris. Fit 15" or larger wheels.


  • Electric brakes are easier to install and offer more user control than hydraulic brakes
    • Require only an electric brake controller (sold separately) - no actuator or hydraulic lines necessary
  • 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
  • Self-adjusting brakes do not require periodic manual adjustment like standard brakes
    • Fine-tooth brake adjustment gears allow for a more precise setting
  • Dust shields protect from debris while you're towing
  • E-coated backing plates resist wear and corrosion
  • 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 (BRKH122510) sold separately
  • QAI and CSA certified


  • Application: most standard hub-and-drum assemblies, including Dexter and Lippert (LCI)
  • Dimensions: 12-1/4" diameter x 3-3/8" wide
  • Mounting flange bolt pattern: 7 bolt
  • Wheel size: 15" or larger
  • Axle rating: 10,000 lbs
  • Limited 1-year warranty

Self-Adjusting Brakes Don't Require Routine Adjustment

Standard electric brake assemblies require manual adjustment of the brake shoes over time to provide longer-lasting and more efficient braking performance. With self-adjusting brakes, the brake shoes are always properly aligned, so there's no need to manually adjust the brakes after the initial adjustment. As a result, you get optimum performance without having to take the time to continually perform this type of maintenance.

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.

B1210E-11 AxleTek 12-1/4" x 3-3/8" LH Self-Adjusting Electric Brake Assembly - Drivers Side - 10K Axles - Dust Shield

B1210E-12 AxleTek 12-1/4" x 3-3/8" RH Self-Adjusting Electric Brake Assembly - Passengers Side - 10K Axles - Dust Shield

Item # AKEBRK-10

Customer Satisfaction Score:

Customer Reviews

Electric Trailer Brake Kit w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right Hand - 10K - AKEBRK-10

Average Customer Rating:  4.8 out of 5 stars   (118 Customer Reviews)

Self-adjusting electric brakes measure 12-1/4" x 3-3/8". Brake pads are made of durable friction material for improved braking. E-coated backing plates resist rust. Dust shields protect from debris. Fit 15" or larger wheels.


Just as it should be!!! Ordering online was easy, shipment was made the same day (with confirming email), and items were received one day earlier than expected. I'm very pleased with the quality of the brake kits... and saved me several $$. Highly recommended! Thank you etrailer for the great service with the sale!


Great product and super fast delivery came 3 days earlier than I thought.


We got them and put on all four fit perfect. I got them when they said fast delivery.


Price was reasonable quick delivery very happy with these guys


Vary easy to it on


Great service,good parts and best price I could find on the Internet


Great Shipping.


Great prices fast shipping


Easy to install fit right works great


etrailer is a great place for all my trailer repair needs.


Perfect fit easy to install, work like when trailer was new.


Very reasonable price


Brake assmblies are the way to go when replacing trailer brakes. Definitely the most economical way to 'do it right'. So easy to install and everything is new.


I received my order quickly and correctly. Awesome company to purchase trailer parts from. Great quality.


I be-leave that I have been a customer for about ten years and the service and the attention that I have receive is always professional. etrailer keep a history of my purchase's so when I order repeat items like brakes for my Big Tex trailer they know the parts that I need, I just gave them my name and phone number and within minutes the parts are on the way directly to the trailer repair shop. Great Service

by: is the best all of my brakes and they came quicker than I expected they install and matched up perfectly replace my old brakes in no time the product is just as it says I will definitely be using them in the future for all my trailer brake work and parts thank you restart


Brakes worked just like factory and loved having the option to order new hardware for easy install and not having to use old rusted bolts and nuts! Will definitely use this place for all future trailer replacement parts


Good fit , easy install.


have installed a prior set, they match up well, delivery time was excellent considering the nation wide pandemic we are dealing with at this time, is always on point with their products!


Got three brake parts over the phone everything worked out great


Madison professionally helped me with my order. Quality product, quality personnel.

Thanks for checking with me George. No problems at all. Just today I suggested your company to a thread discussion on a tractor website I frequent. Good product. Good service.
Richard - 05/09/2019
Excellent, no problems at all.
Richard - 05/19/2019


Customer service was great. Found my parts on line, but I still had a few questions so I called in. The person who answer seemed to be very knowledgeable on the products they were selling.


product worked very well the packaging could have been better one of the shoe had a little piece out of it because of poor packing the customer service when ordering and the timely shipping was great


Very fast shipping, great service. Replacement brake assy and seals


Good pricing, easy install was the best and cheapest way to replace the brakes on my 9 ton trailer.

Show More Reviews

See what our Experts say about this etrailer Trailer Brakes

  • Individual Assemblies that Come with Electric Trailer Brake Kit # AKEBRK-10
    Yes, the left and right hand assemblies of the kit part number # AKEBRK-10 are available as part numbers # AKEBRK-10R for the right hand side and part # AKEBRK-10L for the left hand side. The kit does not include anything beyond just the two assemblies so if you happen to catch our pricing algorithm offering them individually at a better price that's what I would recommend you go with!
    view full answer...
  • Availability of Electric 6 Bolt Mount Brake Assemblies for 10K Axle
    Unfortunately, we don't offer any 6 bolt brake assemblies all the brake assemblies we offer for a 10K axle use a 5 or a 7 bolt mounting flange. According to Dexter, they discontinued those brake assemblies about 20 years ago. The good news is that spare parts are still available. To identify the correct parts, we'll need to know if you have the general or heavy duty brake assemblies. Just measure the existing brake shoes, if they're 3-3/8 inches wide they're general duty, if they're...
    view full answer...
  • Replacement Brake Assembly Recommendation for Big Tex AC20 Car Hauler
    The brake assembly kit you want is the part # AKEBRK-10 which comes with two self adjusting brake assemblies for the size you need of 12-1/4 inch by 3-3/8 inch. I attached a review video for these assemblies for you to check out as well.
    view full answer...
  • Where To Start for Adding Electric Brakes to a Trailer
    Sounds like you are trying to add trailer brakes to a trailer that currently does not have any installed. I attached a help article that will walk you through the entire process, but basically you will need to first determine what spindle you have on your trailer axles so that you can find the right hub/drum to fit the axles. Once you have that figured out you will be able to piece the rest of the parts needed from there. I also attached a picture that shows what info is needed to identify...
    view full answer...
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  • Replacement 12-1/4" x 3-3/8" Braking Assemblies for 10K Axle
    The Dexter 10K axles use 12-1/4" x 3-3/8" braking assemblies whereas the ALKO 10K axes use 12-1/4" x 3-1/2" braking assemblies. Therefore, it sounds like you have Dexter axles and need to use the Electric Trailer Brake Kit part # AKEBRK-10. I really wouldn't pay too much attention to the visuals differences of the assemblies because if the measurements match they will fit.
    view full answer...
  • Trailer Brake Assemblies for Big Tex with 10k Brake Assemblies
    The correct electric drum brake assemblies for a trailer with 10k axles like yours would be the part # AKEBRK-10. In order to pick out the correct drum I would need more specific info from you though like what is the wheel bolt pattern and what is the brand and age of the axle.
    view full answer...
  • Comparing Dexter and etrailer Brand Electric Trailer Brakes for 10K Axles
    We recently had a short training session in which the difference between our brakes such as # AKEBRK-10R and Dexter brakes were revealed. The biggest difference is the brake pad material. It is thicker on our house brand brakes. Also, on our brakes the pads are machine cut whereas on the Dexter brakes the sections are snapped off. The benefit to having them machine cut is a smoother edge. Snapping off the pad sections leads to chipped edges and fine cracks in the material. The performance...
    view full answer...
  • Dimensions for the 7-Bolt Mounting Pattern on the Electric Trailer Brake # AKEBRK-10R
    Although we do not have a schematic for the 7 bolt mounting pattern, I do have the measurements for the patterns. The 7 bolt mounting patterns for both the Electric Trailer Brake with Dust Shield, Right # AKEBRK-10R and Left # AKEBRK-10L, varies between 2", 2-3/16", and 4" depending on what mounting hole locations you are looking at. I have provided a picture that shows the dimensions for you to reference.
    view full answer...
    Image 1 for
  • Does Brake Assembly part # AKEBRK-10R Fit Dexter D100 Axles
    If your Dexter axles are 10k axles that require 12-1/4 inch by 3-3/8 inch assemblies the part # AKEBRK-10R would fit. Everything I am finding on the Dexter D100 axles is that they are 10k so these would be a fit. For the matching left side you'd want the part # AKEBRK-10L.
    view full answer...
  • Replacement Trailer Brake Assemblies for Dexter 10K Axle
    The etrailer brand # AKEBRK-10R for the right side and # AKEBRK-10L for the left are the correct replacement 12-1/4 inch brake assemblies for a Dexter 10K axle with a 7-bolt brake mounting flange. I've linked to a product description video featuring the brake assemblies.
    view full answer...
  • Replacement 12-1/4 Inch x 3-3/8 Inch Braking Assembly with Four Bolt Brake Mounting Flange
    If the braking assemblies you have now are indeed 12-1/4" x 3-3/8" and use a four bolt brake mounting flange then you are going to want to use the Electric Trailer Brake Kit w/ Dust Shields part # AKEBRK-8, not the Electric Trailer Brake Kit w/ Dust Shields part # AKEBRK-10. I have attached a photo which shows the correct way to measure your braking assembles for replacement. You will also need to verify that the bolt holes on your brake mounting flange are 3-7/16" apart on center from...
    view full answer...
    Image 1 for
  • How to Select Replacement Electric Drum Brakes for Tandem Axle Gooseneck Trailer
    Replacement electric drum brakes needs to be selected based on the axle weight rating to ensure they have the necessary stopping power. We do offer electric drum brakes in your specified size, 12-1/4 x 3-3/8-inches, and this size comes in ratings for 8K, 9K and 10K axles. All are displayed on the linked page. Your axles should have a sticker or plate that indicates their weight rating. You'll also want to note the brake mounting bolt pattern to make sure you choose new brakes that match....
    view full answer...
  • How To Manual Adjust My Electric Brakes
    When it comes to adjusting your electric brakes # AKEBRK-10 you will adjust them out until you hear a slight but constant drag of the pads on the drum. There are specialty brake adjustment tools that you can buy locally but if you have the right sized flathead screwdriver you will be ok. There is a star wheel inside the brake assembly, accessible through an opening at the lower, back side of the assemblies. There may or may not be a plug in the opening that you would have to take out first...
    view full answer...
  • Are there Specific Marine Grade 12-1/4 Inch Electric Brakes for a Boat Trailer?
    All of our electric brake manufacturers do a good job at sealing the wiring at the magnet so they can be used in marine applications but there are no electric brakes designed for boat trailers. This is likely due to a lack of marine grade material use on electric brakes (galvanized or stainless steel backing plates) The etrailer # AKEBRK-10R, you referenced, will work for your application if your drum is 12-1/4 by 3-3/8 inches, see attached diagram that shows you how to measure. I have...
    view full answer...
  • Mounting Bolt Dimension on Etrailer Electric Brake Assembly
    The Electric Brake Assembly # AKEBRK-10R has a 7 bolt pattern that fits most standard brake assemblies. I have included a photo that shows the measurements of the distances between the bolt holes on the brake assembly. You will need to check the flange on your axles to make sure what bolt pattern you will need for a brake assembly.
    view full answer...
    Image 1 for
  • Availability of 12-1/4 inch Brake Assembly with 4 Bolt Mounting Pattern
    For a 12-1/4 inch by 3-3/8 inch brake assembly that uses a 4 bolt mounting pattern we have the part # AKEBRK-8L. This would be what would work for you. There would be no way to attach a 7-bolt assembly to a mounting flange designed for a 4-bolt. This assembly has an 8k capacity which you would need to make sure your trailer has the same.
    view full answer...
  • Replacement Electric Brakes for a 1991 Fleetwood Wilderness 5th Wheel Trailer
    I am fairly certain your 1991 Fleetwood Wilderness uses 10 x 2-1/4 inch brakes. But to be sure you can measure the inner diameter and depth of a drum. For a pair of brake in this size I recommend etrailer brakes # AKEBRK-35-SA which includes a left and right assembly. These are self-adjusting brakes that only require an initial adjustment at the time of installation. After that they will adjust themselves. I have linked a video featuring these brakes for you.
    view full answer...
    Image 1 for
  • Is the Electric Trailer Brake Kit for 10K Axles Sold As a Pair
    The Electric Trailer Brake Kit part # AKEBRK-10 is sold as a pair, so one left and one right. This kit would be sufficient for one axle which is another way of looking at it. If you need new mounting hardware which I do recommend replacing we have this as well, the Mounting Bolts and Hardware for 12-1/4" Brake Assemblies part # BRKH122510 which is again for a pair, therefore one axle.
    view full answer...
  • Will etrailer Self-Adjusting Electric Trailer Brake Kit for 10,000 lb Axle Work on Dexter Hubs
    Yes, the self-adjusting Electric Trailer Brake Kit w/ Dust Shields # AKEBRK-10 will work on Dexter Axle hub and drums, so long as you have the appropriate 7-bolt brake mounting flange. These brake assemblies are rated for 10,000 lb axles and only require the Mounting Hardware # BRKH122510 to install. I've added a link to a video review for you to check out as well.
    view full answer...
  • Replacement Self-Adjusting 12-1/4 x 3-3/8-Inch Electric Drum Trailer Brakes to Replace 023-451-00
    Brake part 023-451-00 refers to a right-hand Dexter electric drum brake for 9K and 10K-rated axles. The brake dimensions are 12-1/4-inch diameter and 3-3/8-inch width. We do offer this size of brake in 8K, 9K and 10K axle capacities in the self-adjusting variety; these are shown on the linked page. The best value among all is the 10K-rated etrailer Axle Teknology brake pair # AKEBRK-10. These drum brakes work with wheels from 15-inches up to 17-1/2-inches. These use a 7-bolt mounting...
    view full answer...
  • Trouble Removing Spindle Nut On Dexter 10K Axle
    Thank you for your purchase of the Electric Trailer Brake Kit w/ Dust Shields part # AKEBRK-10. In some cases, you can remove the spindle nut with a set of channel locks but in others you will need to use a socket and ratchet or even possible a breaker bar depending on how long the spindle nut has been on there. If you have access to a torch you can heat the nut up as that will help to remove it but otherwise you just need to use more force. For a new tang washer you can use part # 5-59.
    view full answer...
    Image 1 for
  • Can I Use Self Adjusting Brakes in Place of Manually Adjusting Brakes on my 5th Wheel
    Yes, you can replace your old manually adjusting brakes with a set of self adjusting brakes without any issues. You'll want to determine the size of the drums on your trailer axles, which can usually be easily determine by your axle capacity. If you've got 10 inch drums and tandem/triple 3500-lbs axles then you'll want to use the Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA. These assemblies do not come with mounting hardware...
    view full answer...
  • Brake Assembly Recommendation for BigTex 20ac With 10k Axles
    The brake assembly set you need for each of your 10k Dexter axles is the part # 23-450-451. This set of left and right assemblies is exactly what your Dexter axles need and they are self adjusting as well.
    view full answer...
  • Inner Brake Drum Dimension of Dexter Drum 009-044-01 to Brake Dust Shield Mounting Flange
    I went out to our warehouse to measure the Dexter Trailer Brake Drum # 9-44-1 drum for you. From the inside wall to the inside lip the measurement is 4-1/2 inches where it will come to the dust shield of the brake assembly where it mounts to the axle flange. The brake assembly I recommend for that hub is the Electric Trailer Brake Kit w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right Hand - 10K # AKEBRK-10.
    view full answer...
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