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Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs

Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs

Item # 23-105
Our Price: $97.09
You Save: 22%
Accessories and Parts
Shipping Weight: 15 lbs
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23-105 - LH Dexter Trailer Brakes
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12" x 2" Driver's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has a 5-bolt pattern. Fits 14-1/2" to 16" wheels. 1-800-940-8924 to order Dexter accessories and parts part number 23-105 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs. Accessories and Parts reviews from real customers.
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Dexter Accessories and Parts - 23-105

  • Trailer Brakes
  • Electric Drum Brakes
  • Brake Assembly
  • 12 x 2 Inch Drum
  • Dexter
  • LH
  • 6000 lbs
  • Manual Adjust

12" x 2" Driver's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has a 5-bolt pattern. Fits 14-1/2" to 16" wheels.


  • Electric brakes are easier to install and offer more user control than hydraulic brakes
    • Requires only an electric brake controller (sold separately) - no actuator or hydraulic lines necessary
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assemblies and off of the shoes
  • Mounting bolts sold separately
  • Made in the USA


  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO
  • Configuration: left hand (driver's side)
  • Dimensions: 12" diameter x 2" wide
  • Mounting flange bolt pattern: 5 bolt
  • Wheel size: 14-1/2", 15" or 16"
  • Axle rating: 6,000 lbs
  • Limited 5-year warranty

Exploded Electric Brake Assembly

K23-105-00 Dexter Electric Brake Assembly, LH - 6,000 lbs

Replaces 23-105

Customer Satisfaction Score:

Customer Reviews

Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs - 23-105

Average Customer Rating:  4.8 out of 5 stars   (171 Customer Reviews)

12" x 2" Driver's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has a 5-bolt pattern. Fits 14-1/2" to 16" wheels.


Quality product and strainer staff are knowledgeable and answered all of my questions



So far everything is working as they should

Etrailer Expert

Mike L.


@Adrian Awesome! We're glad to hear that your Dexter # 23-105 brake assemblies are working well for you.


Excellent service!
Getting ready to place
another order!


The Original Dexter brand are better quality than the generic replacements.


I replaced the electric brakes on my dump trailer, and bought the Dexter 6000 lb set, fully assembled and ready to bolt on. They fit perfectly and are of the quality that I expected for American made products. I am very happy with my purchase.


I bought a used toy boxa and quickly found out that the breaks were mowed down. I had trip planned to Yellowstone so, I needed these fast. They showed up on time and were the right part. I put them on drive from SoCal to Yellowstone which is 1500 miles. I re-adjust the break one morning in Yellowstone and haven’t looked back. Thank you!!!! Here is a picture of my trailer in Idaho. We camped here one night before we got to Yellowstone.


Super fast delivery. Exactly what I needed for the RV.


Parts all fit properly and worked great. Good product.



The brakes have been in for a year and work great. Installation was really easy. They came well packaged and with everything needed.


EXCELLENT...... START TO FINISH. Fantastic service, great prices, quality products. Here's a before and after picture. It only took 30 minutes and basic tools to make the replacement. So much better than trying to clean up the old rusty one. Thanks again, Bill Borland in Michigan


Easy to instal and we’ve had no problems thus far.


Less work than buying all the parts separately. Parts came in good physical condition. However, on 1 of the 4 assemblies, the adjuster and adjuster spring was loose in the packaging but was easily made whole.


I checked here locally on the cost of trailer brake shoes and magnets and found the price of etrailers' complete brakes and magnets assembled on a new backplate was by far less expensive. After removing the drum, this meant near zero labor, just five nuts to remove and replace the backplate then splice the wires. And another BIG plus, free shipping on an over thirty pound shipment. Wow so easy...And now I have all new brakes, magnets and all the other parts too, just seems to good to be true. I will continue to tell everyone about this labor saving and great priced product. Thank you

Edward S.


Now a year later and 3,500 miles without any problem or issues. Looking back I am very pleased with my purchase and the excellent service provided by eTrailer. Thanks so much. Stay safe...


First shipment of two 23-105, and two 23-106 arrived with grease contamination soaked into the lining on two assemblies and impact damage to the lining on a third. etrailer shipped three replacements promptly. Sticker on carton said "quality checked by Alex G. Perhaps Alex should find another line of work.
My major issue however is that after installing these I had to crank the power on my controller to maximum to achieve any helpful braking and can't even come close to wheel lockup which you need to adjust properly. I noticed that the new magnets were oval shaped unlike my old ones which were longer and flat on top and bottom (like the magnets pictured on the 7000lb assemblies). I assumed the style had simply changed since my magnets were made and I had no reason to look at 7000lb brakes as my axles are tagged 4400lb. All instructions on etrailer site state to select the brakes by the weight of your trailer which in my case is 9000lbs. Surely four 6000lb brake assemblies would be overkill..WRONG! My axles are 7000lb "de-rated" to 4400 but they obviously had 7000lb brakes. This caveat has caused me to install the wrong brake assemblies! If you are replacing your brakes and wish to duplicate your stopping power, do NOT listen the the "expert" answers on here. Compare the shape of the magnets. These small oval magnets are not as strong and braking will suffer. I still feel as though I should be able to achieve wheel lockup with these but not the case and since they have now been used, I can not return them.

Etrailer Expert

Patrick B.


Double check the adjuster down at the bottom of the brake assemblies. That adjuster should be used when the brakes are first installed. Use the adjuster to open the assemblies so that theyre putting a slight and even amount of drag on the wheel as you spin it by hand. If you have used the adjuster as outlined above and the brakes still will not engage properly, give us a call at 800-298-8924 and our Techs will help diagnose.


This part was a perfect replacement for the original which had failed after 18 years of service.


the rep
s were will helpful and the
shipping was fast. ABD THEY WERE VERY polite ..will order again from etrailer


I was replacing the brakes on a 72 Airstream Argosy and needed a magnet but found out I could get whole new assemblies for $2.00 more! That's a deal! Just make sure if your backing plates have attached studs that you pick up the necessary grade 5 or 8 bolts, nuts and lock washers too.

Terry N.


Worked just fine. Sold the trailer


I am writing this very favorable review of my online shopping experience with etrailer. Recently I had to replace the brakes, hubs, wheels and tires on my travel trailer. Please keep in mind that I am a 65 year old man without a lot of experience with online shopping. Never-the-less, I decided to give it a try in hopes of saving some money. To my surprise, etrailer made the experience very easy and painless. Before I placed my order on line, I had a question about one of the items on my shopping list, so I placed a call to them. I spoke with a very lovely and patient Customer Service Representative by the name of Michelle S. She was very helpful in answering my questions and encouraged me to call her back directly when I was ready to place my order; and so I did. During the shipping process, she kept me informed through emails the status of my order and everything arrived on time and in great shape. I truly appreciate the personalized services I received doing business with etrailer. They truly removed all of the uncertainty and nervousness of shopping online.


Excellent service over the phone, arrived quicker then told when I ordered. Real easy to replace, 5 mounting nuts and the 2 wires for the brake hook-up. Can't beat the price, a lot better ordering the whole brake assembly then just the brake shoes. Hardest thing was dealing with the messy wheel bearings. As always, GREAT JOB ETRAILER.


Didnt realize how bad the brakes were until they were replaced! Now, the trailer actually stops!!!

Jeff M.


Perfect! The brakes work as they should. Perfect fit!!


I have just received my new dexter brake assemblies and have not installed them yet. They look like they are very well built and the shipping was very fast and would recommend etrailer to anyone who needs brake replacement.


It fit my 89 Airstream perfectly. Original unit broke a spring and totally self destructed. This and the brake drum with bearings fixed everything. About $50 cheaper than buying from my local brake shop who I have dealt with for 30 years.


I had ordered some parts online to rebuild the suspension on one of our trailers. Customer service called me a short time later to inform me that they were out of stock on some items, they asked if it was possible to substitute some items. She was able to find the exact parts I needed in a different kit. The parts came within 3 days, very well packed, and they fit perfectly! This is the 3rd time I've ordered from etrailer and they have exceeded my expectations every time. EXCELLENT customer service and quality parts.


Brake assemblies seem to be of equal quality to original equipment. One of the front shoes on one unit looked like it had been trued to round and was thinner on one end than the other. I don't know if it will have a shorter life because of this or will wear better because it is more round. The grease seals are fin also.


Dexter electric brake assemblies arrived in 3 days, free shipping and they fit great. I could have gotten them in stock locally, but they were an aftermarket brand and cost more. Etrailer has the best prices and service, anywhere!!!!!! A++++++


This was not the first time I have purchased from "". The first time being several years ago. I purchase may products on line and honestly this company/source for the products they offer and the prices, processing, shipping and support they provide is very honestly as good as I have ever encountered. Their staff are completely helpful and "KNOW" the products they sell. I have my own RV and have hauled/delivered RV's Commercally for years, through out the lower 48, Canada and Alaska.

No, I don't write reviews very often and only after I have honest experiences with the sources that enable me to evaluate them, good or bad.

No, I don't write reviews very often and only after I have honest experiences with the sources that enable me to evaluate them, good or bad. " />


Wonderful service, exact replacement, delivered promptly!

Show More Reviews

See what our Experts say about this Dexter Accessories and Parts

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    The difference is the mounting pattern. The Dexter # 23-105-09, brake assembly that you have referenced will mount to either an AL-KO/Hayes 4 bolt or a standard 5 bolt mounting flange. The # 23-105 just fits the standard 5 bolt pattern. Otherwise the specs are the same: 12 inch by 2 inch 6,000 pound axles Manual adjust Left hand side
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  • Which Way to Turn Brake Adjuster to Tighten Trailer Brakes
    Turning the wheel so that the teeth on the wheel move upward will expand the brake shoes against the inside of the brake drums. Moving the teeth downward will contract the brake shoes. You can see the adjustment procedure by clicking on the video link I've provided. Simply fast forward to the 4:24 minute mark.
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  • Is it Normal to Hear Trailer Brakes Clicking
    The clicking you are hearing is normal. That's actually your brake controller sending a split second of amperage on the brake output circuit to see if a trailer is connected. This is basically just the test the controller performs to know if a trailer is connected. This would be unrelated to your bearing issue.
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  • How Do Trailer Brake Assemblies Adjust
    Use a brake adjustment tool to turn the starwheel on the adjuster to expand the brake shoes until the wheel is very difficult to turn by hand. Then back off the starwheel in the other direction, about 10 clicks until the brakes drag slightly. Make sure all brake assemblies are adjusted in the same manner. Check out the video (see link). Beginning at the 4:23 mark, our installer shows how to adjust your trailer brakes.
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