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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
Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K - 25 Pairs
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Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K - 25 Pairs

Part Number: ETBRK208B
In Stock
$4,994.56
Trailer Brakes
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
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. Great Prices for the best trailer brakes from etrailer. Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K - 25 Pairs part number ETBRK208B can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (375)
  • Q & A (0)
  • Photos

etrailer by AxleTek Trailer Brakes - ETBRK208B

Highlights

  • No More Manual Adjusting: Self-adjusting design keeps shoes aligned for consistent braking.
  • Built to Last: Fully bonded automotive-grade friction pads resist cracking and crumbling.
  • Protected From Rust: E-coated backing plates and dust shields guard against wear and debris.
  • Reliable Stopping Power: 12-1/4" x 3-3/8" brakes deliver strong, smooth performance on 8,000-lb axles.
  • Quick Bolt-On Fit: Left and right assemblies mount to 4-bolt flanges for easy installation.
  • Tested Safe: QAI and CSA certified after full braking and real-world performance testing.

Features to know about

Stop Smoothly and Safely: Self-Adjusting 12-1/4" Electric Brakes

These 12-1/4" x 3-3/8" electric trailer brakes deliver strong, consistent stopping power for 8,000-lb axles. The self-adjusting design keeps the brake shoes properly aligned after the initial setup, so there’s no need for routine manual adjustment. That means smoother braking and less time spent crawling under your trailer to tweak the settings.

Built Tough for Everyday Towing: Automotive-Grade Friction Material

Each shoe is lined with automotive-grade friction material that’s fully bonded—not riveted—for long life and more braking torque. The pads are tapered and circular-ground to prevent cracking or crumbling, helping avoid mechanical lockup even after heavy use. It’s SAE-N certified, so it meets environmental standards in California and Washington while still providing dependable performance mile after mile.

Protected Against Rust and Road Grime: E-Coated Backing Plates and Dust Shields

Road debris can eat away at brake components fast, but these assemblies include E-coated backing plates that resist wear and corrosion. The built-in dust shields keep dirt out of the assemblies and off the shoes, helping your brakes stay cleaner and last longer in tough conditions.

Ready for Straightforward Mounting: Direct Fit Assemblies for Standard Drums

Each set includes 25 left-hand (driver’s side) and 25 right-hand (passenger’s side) brake assemblies that fit most standard hub-and-drum setups—Dexter, Lippert (LCI), and AL-KO among them. The 4-bolt mounting flange pattern makes installation simple, and adjuster plugs are included to cover access holes once everything’s in place.

Certified for Safety and Reliability: QAI and CSA Tested

You can tow with confidence knowing these brakes meet QAI and CSA certification standards. They’ve been thoroughly tested for braking performance in complete automotive setups under real-world conditions to ensure safe, consistent stopping every time you hit the road.

Specs

Quantity

  • Quantity: 25 left-hand and 25 right-hand assemblies

Application

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

Dimensions

  • Dimensions: 12-1/4" diameter x 3-3/8" wide

Mounting

  • Mounting flange bolt pattern: 4 bolt

Wheel Compatibility

  • Wheel size: 15" or larger

Weight and Capacity

  • Axle rating: 8,000 lbs

Warranty

  • Limited warranty: 1-year

B1208E-11 AxleTek 12-1/4" x 3-3/8" LH Self-Adjusting Electric Brake Assembly - Drivers Side - 8K Axles - Dust Shield

B1208E-12 AxleTek 12-1/4" x 3-3/8" RH Self-Adjusting Electric Brake Assembly - Passengers Side - 8K Axles - Dust Shield





Ratings & Reviews

4.6

375 reviews
5 Stars
(304)
4 Stars
(35)
3 Stars
(9)
2 Stars
(7)
1 Star
(20)
Review Sort Icon
by:
Fit perfectly, now we will see how the actual brake pads hold up or hold on, either way that you care to look at it. Good price overall, but, something usually gets short changed like maybe the quality of the brake shoes? I will let you know after we do a few stops with 18k on deck.
Ray profile picture

Ray

11/14/2025

Doing great, no concerns

by:
Happy customer. Items arrived on time. Great price. Replaced brakes on our trailer.
by:
Individual who assisted me with my order was very knowledgeable. She took good care of my order and needs. If Iam right she help me with my return ordered. Job well done. Thanks!
by:
Very pleased, quick delivery and the parts look very high quality
by:
These brake assemblies where exactly what I was looking for. Because these are an odd size, my local supplier did not have them in stock and would have taken a week to get them and the price would have been double what I paid on etrailer
Thanks again Julie N. for you help processing my order. I got them in 3 days.
by:
Fantastic product!
by:
Great package I put all four on had to break them in and they work great.
Fast free shipping great price and great product thank for a fare deal and great product
by:
Same deal, best prices and service anywhere so keep it up
by:
2008 Honda CR-V
I am usually not one to buy aftermarket parts, I always prefer “Made in USA”. However these brake assemblies were better then expected and fit perfectly. I’m yet to see the wear factor but they look good.
by:
Need a refund, sent the wrong parts.
Mike L. profile picture
Etrailer Expert

Mike L.

4/2/2026

I'll get that taken care of for you, Shane.

by:
Fit as it should. Would order again
by:
I received my order quickly and correctly. Awesome company to purchase trailer parts from. Great quality.
by:
Excellent customer service and super fast shipping.
by:
Works great perfect fit. Fast shipping.
by:
fast shipping, great service
by:
An awesome experience. Customer service is great, and the parts were exactly as advertised. Delivery was on time.
Brooke M. profile picture
Etrailer Expert

Brooke M.

5/23/2025

Glad to hear that, Gini. Are you fixing up the trailer for an upcoming trip? :)

by:
Exact replacement
by:
The reason I gave the 5 star is because of the timely delivery, low cost, and free delivery. The quality is the same that I could buy locally, however the savings is so significant that I had to buy them. I'm a mobile independent mechanic and I try to give my customers the best products and deals I can. I'll be buying more from etrailer.com. Thank you.
by:
The product was fine but the way they packaged it for shipping was terrible. It came pretty beat up and I had to straighten out the back plates on a couple of them.
by:
Not fitting my 12" drums! I need to order new drums or return brakes for ones that fit 12" drums!
Kate F. profile picture
Etrailer Expert

Kate F.

6/5/2026

Sorry to hear that Merle. Can you please confirm your axle capacity, and is there any numbers stamped on your existing hub so I can see what you currently have? How old is the trailer you are working on? These are 12 1/4", so that explains why they are not fitting your 12" drum, I would like to find you the right parts, just need some more info =)

by:
Easy install as they were an exact replacement. Glad to have found self adjusting brakes as it was difficult crawling under my 5th wheel, raising a wheel off the ground and performing the adjustment procedure. It took several hundred miles for these to burnish in completely. Once they did, my brake controller setting was reduced from 100% to 40%. Our 7 week road trip took us through Grand Tetons, Yellowstone, mountains of Idaho, Washington and Oregon. The brakes were great the entire trip.
by:
Have not taken trailer on long trip yet but, testing and adjusting went well
by:
Excellent service and attention
by:
2021 Ram 3500
Feliks. T. profile picture

Feliks. T.

6/6/2023

Working very well

Mike L. profile picture
Etrailer Expert

Mike L.

7/6/2023

@FeliksT We're glad to hear that you're happy with your brake assemblies!
by:
perfect fit!
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C

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