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If your trailer brakes are dragging or just not grabbing like they used to, this etrailer kit is a solid replacement. The left and right 12-1/4" x 3-3/8" electric drum assemblies fit standard 8,000-lb axles with a 4-bolt mounting flange and work with wheels 15" or larger. They deliver the braking torque you need without the mess of hydraulic lines — just wire them to your brake controller and go.
Manual brake adjustments can be tedious and easy to forget. These self-adjusting brakes automatically maintain the correct shoe-to-drum clearance as the pads wear, keeping braking smooth and consistent every time you tow. The built-in tension cable keeps everything aligned, so there’s no need to crawl under the trailer to dial them in.
These assemblies use automotive-grade friction material that’s fully bonded to the brake shoes — not riveted — for stronger, quieter braking and a longer service life. The tapered pad edges help prevent stutter and lockup, while the e-coated backing plates and protective dust shields keep dirt, grime, and moisture out. It’s a setup made for real road conditions, not just test stands.
Each assembly meets QAI, CSA, and SAE-N certification standards for braking performance and safety. They’re built to fit most standard hub-and-drum setups from etrailer, Dexter, and Lippert (LCI), giving you dependable compatibility with proven components. When matched with an 8K axle and proper hub, these brakes deliver confident stopping power trip after trip.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
The complete brake plates fit and worked perfect.I will be replacing the other two on my trailer this winter.
Parts showed up on time and in good condition. Parts fit as advertised. Really happy with my purchase and shipping.
Product delivered as ordered. The price was the best/lowest I could find. Have just installed four trailer brake assembly’ and it went well. Very happy!!
Product fit and worked as it should would order them again for several other trailers that I own, just wish shipping would have been more timely.
Parts where exact fit for dexter 8k axles,great value and appears to be well a manufactured assembly. Order fulfillment customer service was excellent!Items was shipped proto and well packaged. This was first time doing business with etrailer, definitely will be back!
First time ordering from etrailer and I will definitely be ordering from them again. My experience with the sales person was pleasant and informative. My parts arrived on time and fit perfectly.
Excellent service. I ordered on the 29th (evening) and all items were here afternoon of the 31st! The customer service rep. helped me find the exact replacement parts that worked for my application. The pricing was a lot better than I could find on the internet or locally. I will definitely order from etrailer again.
the early arrival of the brakes was a surprise.Thats a +, the - was the packaging was a dissapointment. to put 2 brake kits in a 3' long box with several crumpled pieces of paper that allows the brakes to crash into each other during shipping can cause damage to the parts. either strap them in or use foam to secure them. over all I am satisified with the product. I am replacing the brakes on my 38rl redwood camper.
Brakes work as they should on my 2004 Elite horse trailer. Easy to install. The break in period is important as when I first installed braking was not good, but after break in period they work excellent.
I had bought from etrailer before and was satisfied so since I was in the market for brakes for one of my older trailers I called them. The employee assisted me in the selection of the parts I needed. The order was placed and I was given a delivery date. Surprise, the order was delivered a few days ahead of that. I am pleased.
Exactly what I ordered. Looks like a good product, haven't used the RV yet to try them out. Fitting was straightforward. My only disappointment was not getting a break on delivery cost to Canada but......
Good overall service from Ashley, would order again from etrailer if I needed anything
The parts fit like the originals. Save lots of time in ordering the parts from etrailer.
Way cheaper than original Dexter and came w/ a shield. It's looks exactly the same and performs like Dexter, but you save a lot money. My friend saw these on my trailer and couldn't believe how much I paid. So, he had me order 4 set of them for him. I just torch off old mounting bolts and the brake assembly fit perfectly. My trailer is used mon-fri for work. Now, I have working trailer brakes.
GREAT PRICE AND AWESOME STOPPING POWER! USED THESE UNITS TO CONVERT FROM OLD HYD BRAKES TO ELECTRIC, I PULL OVERSIZE WITH A 28,000 GVW GOOSNECK AND THESE BRAKES SLOW IT DOWN NICE!
Excellent service and attention
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.
Have not taken trailer on long trip yet but, testing and adjusting went well
Not fitting my 12" drums! I need to order new drums or return brakes for ones that fit 12" drums!
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 =)
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.
Fit as it should. Would order again
Need a refund, sent the wrong parts.
Mike L.
4/2/2026
I'll get that taken care of for you, Shane.
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.
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!
Very pleased, quick delivery and the parts look very high quality
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Tim
12/3/2020
The brakes work like new. no problems.