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  1. Trailer Brakes
  2. etrailer
  3. Electric Drum Brakes
  4. 8000 lbs Axle
  5. 12-1/4 x 3-3/8 Inch Drum
  6. 15 Inch Wheel
  7. 16 Inch Wheel
  8. 16-1/2 Inch Wheel
  9. 17 Inch Wheel
  10. 17-1/2 Inch Wheel
etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K
etrailer

etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K

Part Number: AKEBRK-8
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$264.66
Trailer Brakes
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The automotive-grade pads on these automatically adjusting brakes offer lasting effectiveness. 12-1/4" x 3-3/8" Assemblies have rust-resistant, e-coated backing plates and dust shields to protect from debris. Fits 15" or larger wheels. Great Prices for the best trailer brakes from etrailer. etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K part number AKEBRK-8 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 - AKEBRK-8

  • Electric Drum Brakes
  • 8000 lbs Axle
  • 12-1/4 x 3-3/8 Inch Drum
  • 15 Inch Wheel
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Standard Grade
  • Self Adjust
  • etrailer

The automotive-grade pads on these automatically adjusting brakes offer lasting effectiveness. 12-1/4" x 3-3/8" Assemblies have rust-resistant, e-coated backing plates and dust shields to protect from debris. Fits 15" or larger wheels.


Features:

  • Self-adjusting brakes let you maintain optimal braking power at all times
    • Ensures reliable contact between the brake shoes and drums
    • Prevents uneven wear on brake shoes
    • Allows for the perfect setting thanks to the fine-tooth star gear
  • Easier to install and gives you more control than hydraulic brakes
    • Requires only an electric brake controller (sold separately) - no actuator or hydraulic lines needed
  • Automotive-grade brake pads offer superior quality, smooth operation, and excellent braking torque
    • Fully bonded to shoes for more consistent braking compared to riveted pads
    • Tapered edges on pads minimize stuttering and brake lockup
  • Protective dust shields keep internal components free from dirt, grime, and road debris
    • E-coat on backing plates fends off rust
    • Adjuster plugs (included) cover access holes
  • Left-hand (driver's-side) and right-hand (passenger's-side) brake assemblies included
    • Mounting bolts and hardware (BRKH122508) sold separately
  • QAI , CSA , and SAE-N certifications ensure quality


Specs:

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


Quick Tip: There's really not a whole lot to getting new drum brakes. If you've confirmed that all of the specs listed above line up with what you need for your trailer, you can be pretty sure these will work for you.


Automotive-Grade Brake Pads

The pads on these trailer brakes are made of the same friction material that you might find on a car's drum brakes. In fact, the material is SAE-N certified. So, not only does it provide high-performance braking, but it's environmentally friendly, too! With these brakes, your trailer will be good to go on any road throughout the United States and Canada.


The superior quality of these pads is also due to the fact that they're bonded to the shoes, not just nailed down. Riveted brake pads will always give you a screeching reminder to replace your brake shoes. That's because the rivets will scrape against your drum as the friction material wears down. You won't have that noisy problem with bonded brake pads. You'll also get a little more friction pad contact because there aren't any cutouts for rivets. And more friction means more stopping power.


A closeup shot of an etrailer drum brake shows a tapered brake pad.

These pads are also tapered, which should help to prevent any broken, crumbly bits of material from rotating inside the drum as the pads wear over time. Brakes without these tapers are more likely to create a jarring braking experience that could cause the brakes to stutter and lock up.


Self-Adjusting Brakes Don't Require Routine Maintenance

With typical electric brake assemblies, you need to manually adjust them every now and then to make sure you're getting the shortest stopping distances every time you tow.


A trailer drum brake with a red callout shows the location of a tension cable and pulley on a self-adjusting trailer brake.

With self-adjusting brakes, though, you'll always have peak stopping power - simple as that! As the brake pads wear over time, a tensioning cable will automatically keep the pads in alignment so they'll consistently make contact with your drum when you brake. You won't have to do tedious manual adjustments anymore.


Thoroughly Tested for Safety

A lot of resources have been invested to ensure that these brakes meet the requirements for certification set by the QAI and CSA . Basically, these certifications tell you that these trailer brakes are well built and safe for use on the road. They've been tested for braking performance under real-world conditions to provide the most realistic scenario for the everyday tower.


How to Break In New Brakes

Once you get these brakes installed, you'll need to break them in. First, find a long stretch of road or a big, empty parking lot. Once you're there, set your brake controller to its maximum setting and get moving. Speed up to about 40 mph and brake to slow to about 20 mph. Repeat this 15-30 times. The goal is to get the brake shoes and magnet properly seated into your drum. You'll know you've done that when it feels less jerky (and more consistent) each time you apply the brakes.


Note: The brakes will be very hot after doing this, so after every 10 stops you'll want to wait about 10 minutes to let the brakes cool off before continuing. If you don't, you might cook and crack the pad material.



B1208E-11 etrailer by AxleTek Electric Brake Assembly - LH - Driver Side - 12-1/4" x 3-3/8" - Self-Adjusting - 8,000 lbs - Dust Shield

B1208E-12 etrailer by AxleTek Electric Brake Assembly - RH - Passenger Side - 12-1/4" x 3-3/8" - Self-Adjusting - 8,000 lbs - Dust Shield





Customer Satisfaction Score:

Ratings & Reviews

4.6

306 reviews
The automotive-grade pads on these automatically adjusting brakes offer lasting effectiveness. 12-1/4" x 3-3/8" Assemblies have rust-resistant, e-coated backing plates and dust shields to protect from debris. Fits 15" or larger wheels.

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See what our Experts say about this etrailer Trailer Brakes

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    I looked in several places online and couldn't get a definite axle capacity for your trailer. I'd assume it's a pretty high capacity since it's a tandem axle trailer that weighs 12k and has 3k of capacity. So most likely you have 8k axles like what the part # 8-285-11 hub fits which has bearing numbers # 25580 and # 02475 with grease seal # RG06-070. Then for brake assemblies part # AKEBRK-8. Get me the diameter of your axles though and I'll be able to get you a better recommendation. Typical...
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    Electric brakes such as Electric Trailer Brake Kit # AKEBRK-8 do not fit specific axles. These are 8,000 lb rated brakes with a 4-bolt mounting flange pattern and are 12-1/4" diameter x 3-3/8" wide, so you would need that mounting bolt pattern and a hub and drum assembly that allows these brakes to fit. I've added a link to a video review of the brakes for you to take a look at.
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  • Trailer Brake Assembly Needed for 8K Axles with Offset 4-Bolt Mounting Pattern
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  • Electirc Brake Kit AKEBRK-8 Dimensions and Slipper Springs for 9,000 Pound Axle
    The measurements for the mounting holes on the # AKEBRK-8 are 3-5/8" across left to right on center and 3-7/16" top to bottom on center. The diameter of the pilot hole is 3-3/4", and the overall dimensions are 12-1/4" diameter x 3-3/8" wide. The axle rating for these trailer brakes is 8,000 lbs. When picking out the correct brake assemblies for your trailer you want to measure the inner diameter of your hub/drums and the depth of the drums. This information will allow you to find the...
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  • What is the Four Bolt Brake Mounting Flange for 8,000 Lb Axles
    The four bolt brake mounting flange for 8,000 lb trailer axles is going to be more or less an industry standard. This industry standard is 3-5/8" across left to right on center and 3-7/16" top to bottom on center. This could very well vary 1/16" depending on where you measure but rest assure if you have an 8,000 lb trailer axle with four bolt brake mounting flange the Electric Trailer Brake with Dust Shield part # AKEBRK-8L should be the correct braking assembly for you.
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  • Torque Spec to Use for 8k Dexter Trailer Axles
    Here's the mentioned torque setting to use for the spindle nut of the Dexter 8k axles: 1. After placing the hub, bearings, washers, and spindle nut back on the axle spindle in reverse order as detailed in the previous section on hub removal, rotate the hub assembly slowly while tightening the spindle nut to approximately 50 Ft. Lbs. (12" wrench or pliers with full hand force.) 2. Then loosen the spindle nut to remove the torque. Do not rotate the hub. 3. Finger tighten the spindle nut...
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  • 8,000 lb Electric Trailer Brake Assemblies That Measure 12-1/4 Inch x 3-3/8 Inch
    I saw the Q&A you were referring to, which is about a decade old as of this writing and there are no 12" diameter x 3-3/8" wide brake assemblies we offer, just the 12-1/4" diameter x 3-3/8" wide # AKEBRK-8 that are rated for 8,000 lb axles. You may need to change your hub and drum to get one compatible with the larger brakes that are now available. To do this you will need to know what bearings your current hub has. You will need to take apart your current hub assembly and look at the...
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  • AxleTek Brake Assembly Recommendation for 8k Axles with 4 Bolt Mounting Pattern
    Actually our etrailer.com brand brake assemblies are rebranded AxleTek assemblies. So we have the 8k left and right assembly set # AKEBRK-8 which is most likely what you need but these are 12-1/4 inch in diameter by 3-3/8 inches wide and attach with a 4 bolt pattern.
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  • Upgrading From 7K to 8K Electric Brake Assemblies on Trailer for Increased Braking Power
    You should be able to change out the backing plates, hubs, and brakes on your trailer so you can upgrade to higher rated assemblies, but I do recommend checking a couple things on your tow vehicle first. It's possible that your weak braking is due to a wiring or brake controller issue on the vehicle. If this is the case, changing out the brake assemblies on the trailer won't resolve the issue. I first recommend testing the vehicle side 7-Way with a Multimeter like # PT89ZR. Make sure...
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  • Choosing the Correct Replacement Electric Brakes for 8,000 lb Axle
    Knowing your axle's weight capacity - in your case 8,000 lbs - is the first step towards finding the correct replacement brakes. The brakes you referenced, which are sold together as the Electric Trailer Brake Kit # AKEBRK-8, also have a 4 bolt mounting flange pattern, which you'll also need to have in order for these brakes to work as replacements, as well as wheels that are 15" or larger. I've added links to review videos of the individual brakes for you to take a look at.
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  • 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...
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  • Is There Difference Between etrailer and Dexter 8k Trailer Brake Assembly Sets
    The value 8k etrailer brake assembly set part # AKEBRK-8 and the premium Dexter 8k set part # 23-434-435 both offer the same stopping power. The Dexter brand is widely considered to be the best brand for trailer braking components and they do work really well but the etrailer brand is not low quality by any means and with the price difference as large as it is I would say it's the easy winner.
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  • Converting Drum Brakes On A Dexter Military Trailer Axle With 8 On 6-1/2
    I would be happy to help you choose the correct brake setup for your Dexter Torflex Axle, however there are no manufacturers that currently make electric disc brakes. All disc brakes are powered by a hydraulic cylinder. If you wish to use a disc brake setup controlled by an in-cab brake controller, you will want to consider the HydraStar Electric Over Hydraulic Actuator for Disc Brakes part # HBA16 and an electric brake controller such as the Tekonsha Prodigy P3 Trailer Brake Controller...
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  • Correct Bearings, Seals, and Brakes for a Lippert 8,000 Lb Axle
    The Lippert 8,000 Lb Axles use a part # 25580 inner bearing, a part # 02475 outer bearing, and a part # GS-2250DL grease seal. Then for the brakes, you'd need the Electric Trailer Brake Kit part # AKEBRK-8. In regards to the leaf springs and shackle straps, you'd need to measure for these unfortunately but if you let me know the type and length of the leaf springs I'd be glad to see if we have an an option for you.
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  • Will The etrailer Brake Kit Replace Dexter K23-528-00 & K23-529-00 Brakes?
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  • Picking Out Replacement Brake Assemblies for 2010 Keystone Alpine 3640RL
    I can help you find the right assemblies, but I do not know exactly which ones you have on your trailer. I looked up your Keystone Alpine 3640RL and it appears to be rated for around 15k and has a tandem axle setup so you'll most likely need higher rated assemblies. To pick out the correct brake assemblies for your trailer you need to know a few things. You will want to measure the inner diameter of your hub/drums and the depth of the drums to determine what brake assembly dimensions...
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  • Pilot Hole Diameter of 12-1/4" Electric Trailer Brake Kit w/ Dust Shields
    The pilot hole on the 12-1/4" Electric Trailer Brake Kit w/ Dust Shields # AKEBRK-8 is about 4" so it will work for your application. You will want to make sure the bolt holes line up with what you have though so I'm attaching a photo showing those dimensions for you to double check.
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  • Adjusting a Self-Adjusting Brake Assembly on 8K Axle to Easily Remove Drum
    The Self-adjusting Brake Assemblies like # AKEBRK-8 still have a manual adjuster to allow you to relieve that brake shoe pressure. You simply remove the plug on the back of the assembly and adjust the manual dial using a small screwdriver or brake adjuster spoon like # W80630. I've attached a video to assist.
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  • Replacement Brakes and Hub/Drum Assemblies for 8K Axles on Trailer
    If you have electric brakes on your 8K axles then you'll need the Brake Kit # AKEBRK-8 along with 2 of the Hub and Drum Assembly # AKHD-865-8-EZ-K per axle. For hydraulic brakes you need the Left # K23-171-00 and Right # K23-172-00 brake assemblies along with 2 of the Hub and Drum Assembly # AKHD-865-8-EZ-K per axle. Attached are some videos for you to check out.
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  • 8k Rated etrailer Hub/Drums that Work as Replacement for Dexter 8-285 Hub
    Yes the etrailer hub/drum # AKHD-865-8-K that you referenced would work great as a replacement for the Dexter 8-285 hub part # 8-285-10UC3-A that you also mentioned. Then for a set of brake assemblies we have the self adjusting Dexter kit part # 23-434-435 which would work great or the etrailer equivalent part # AKEBRK-8.
    view full answer...


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