1. Accessories and Parts
  2. Dexter Axle
  3. Trailer Brakes
  4. Electric Drum Brakes
  5. Brake Assembly
  6. 12 x 2 Inch Drum
Dexter Electric Brake Assembly for 4 Bolt or 5 Bolt Flange - 12" - Left Hand - 6,000 lbs

Dexter Electric Brake Assembly for 4 Bolt or 5 Bolt Flange - 12" - Left Hand - 6,000 lbs

Item # 23-105-09
lowest price pledge
Our Price: $123.86
You Save: $10.05
Accessories and Parts
This item qualifies for Free Shipping
Shipping Weight: 14 lbs
In Stock
Dexter Electric Brake Assembly for 4 Bolt or 5 Bolt Flange - 12" - Left Hand - 6,000 lbs Brake Assembly 23-105-09
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

12" x 2" Driver's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has AL-KO/Hayes 4-bolt or standard 5-bolt pattern. Fits 14-1/2" to 16" wheels. Call 800-298-8924 to order Dexter Axle accessories and parts part number 23-105-09 or order online at etrailer.com. Free expert support on all Dexter Axle products. Guaranteed Lowest Price and Fastest Shipping for Dexter Electric Brake Assembly for 4 Bolt or 5 Bolt Flange - 12" - Left Hand - 6,000 lbs. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (3)
  • Q & A (60)
  • Photos
  • Why etrailer?

Dexter Axle Accessories and Parts - 23-105-09

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

12" x 2" Driver's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has AL-KO/Hayes 4-bolt or standard 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: AL-KO/Hayes 4-bolt or standard 5-bolt
  • Wheel size: 14-1/2", 15" or 16"
  • Axle rating: 6,000 lbs
  • Limited 5-year warranty

023-105-09 12" Dexter Electric Brake Assembly, LH - 6,000 lbs - 4-Bolt or 5-Bolt Flange

Customer Reviews

Dexter Electric Brake Assembly for 4 Bolt or 5 Bolt Flange - 12" - Left Hand - 6,000 lbs - 23-105-09

Average Customer Rating:  5.0 out of 5 stars   (3 Customer Reviews)

12" x 2" Driver's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has AL-KO/Hayes 4-bolt or standard 5-bolt pattern. Fits 14-1/2" to 16" wheels.

- 23-105-09

Very fast delivery and great quality! 718359

- 23-105-09

Fits Hayes hard to find off four pattern! The 328949

- 23-105-09

Was able to find a Electric break product with four whole mounting screws. Other companies do not have! Easy ordering and shipping right on time . Keep up the good work! 267798


Ask the Experts about this Dexter Axle Accessories and Parts

  • Mounting Hole Pattern for Dexter 12 x 2 Electric Drum Brake 23-105-09
    Most of our 12 x 2 electric drum brake assemblies like Dexter left/right kit # 23-112-113 use a 5-bolt mounting pattern but the Dexter brake kit # 23-105-106-09 has both 4-bolt and 5-bolt mounting holes. I went to our warehouse and measured the spacing of the 4 bolt holes. You can see this center-to-center hole spacing in the photo I prepared for you. Please note that we do have a brake in a similar size, 12-1/4 x 2-1/2, for a 7200-lb axle that uses a 4-bolt pattern. This is brake...
    view full answer...
  • Should Trailer Brakes Be Able to Lock Up When Override Lever of Controller is Slid
    The issue is that the gauge wire you have for the brake output circuit is too thin. You need to be using 10 gauge wire like part # 10-1-1 (sold by foot) to deliver the needed amperage and voltage for the brakes to apply. They should easily lock up with the trailer loaded or unloaded.
    view full answer...
  • Troubleshooting Voltage Drop from 12V to 7V When Trailer Brakes are Installed
    It sounds like you may have a poor ground connection which is causing low voltage when you are testing. Sometimes it may look like we have a really good ground point but some paint or debris is getting in the way and causing issues. What I recommend doing is taking your trailer brake ground wires and running them up to your main trailer ground location. You will likely need more 10 Gauge Wire # 10-1-1 and I recommend using Heat Shrink Butt Connectors # DW05745-5 because they hold up...
    view full answer...
  • Availability of 12 inch Trailer Brake Assembly with 4 Bolt Mounting Pattern
    It's a bit of a long shot but we do have one 12 inch brake assembly that uses a 4 bolt mounting style. It's the part # 23-105-09 and # 23-106-09. I attached a picture of the dimensions of the bolt pattern for you to check out. We have heard back from customers that this did fit older trailers so hopefully it fits yours.
    view full answer...
  • Need 12 x 2-Inch Electric Trailer Brakes with 4-Bolt Mounting Flange
    We do offer 12 x 2-inch electric brake assemblies with a 4-bolt mounting flange. Dexter parts # 23-106-09 and # 23-105-09 are right- and left-hand brake assemblies that have dual mounting hole patterns, both 5-hole and 4-hole. These brakes are rated for use with 6000-lb axles.
    view full answer...
  • Brake Assembly Recommendation for Stock Trailer with 4,500 lb Axle and 5 Bolt Brake Flange
    Going with heavier duty brake assemblies than needed like the part # 23-105-09 and # 23-106-09 is not going to affect the weight rating of your vehicle's axle. You would end up with just brake assemblies that are rated a bit higher than needed but will still operate just fine on your 4,500 lb axles. In general the overall weight capacity of an axle or trailer is the lowest rated component in the setup. Increasing the brake capacity would not give you a higher axle capacity.
    view full answer...
  • Trailer Brake Magnets Won't Activate With Proper Voltage To Them
    It sounds like you have power to the magnets which is a good start. You want to make sure the ground wire from the brake assembly or brake magnet has a good connection to a clean, bare metal surface on the trailer frame or ground to the trailer's main ground. It is also a good idea to check to make sure there are not any visible signs of wear or damage on the magnets. I would check the grounds though because it sounds like your issue considering you have power to the magnets and you...
    view full answer...
  • Comparing Trailer Brake Assembly # 23-105 and # 23-105-09
    Trailer brake assembly # 23-105-09 is specifically designed to fit AL-KO/Hayes axles which are not as common as other axles. Brake assembly # 23-105 fits Dexter axles and other more common axles. If you have an AL-KO/Hayes axle, then I would go with them.
    view full answer...
  • 12 Inch x 2 Inch Electric Brake Assembly with 4-Bolt or Standard 5-Bolt Flange
    The bolt hole patterns for # 185150 and # 185100 did change at the end of 2015. You'll need to pick up the following 12" X 2" brake assemblies which have the 4-bolt pattern that you are looking for as well as the standard 5-bolt flanges. Left side # 23-105-09 Right side # 23-106-09 Please check out the attached demonstration videos.
    view full answer...
  • Replacement Electric Brake Assemblies for AL-KO 12 inch by 2 inch Brakes with 4 Bolt Pattern
    We have a set of brake assemblies fit to replace your 12 inch x 2 inch AL-KO electric brakes. The Dexter # 23-105-09 left-hand side, # 23-106-09 right-hand side. These brake assemblies are rated for 6,000 pounds per pair. The # 23-105-09 and # 23-106-09 will mount on either the 4-bolt AL-KO/Hayes or standard 5-bolt flange.
    view full answer...
  • Diagram Recommendation for Trailer Brakes
    I attached two diagrams that show how a trailer typically wires up as well as how the wiring usually runs to trailer brakes.
    view full answer...
  • Voltage at Brake Magnets is 8 Volts with Brake Controller Set to Maximum
    It should be getting close to 12 volts if the power output is set to the maximum on the brake controller. Some brake controllers will not work properly if they are titled or turned to the side or if it has a leveler knob that is not level. Check those things first since they are the easiest. First, sever the blue wire behind the the brake controller a few inches and use your meter to test the end coming from the brake controller. With the output set to the maximum it should read at least...
    view full answer...
  • Replacement Electric Brakes for a 1980 Dugan Stock Trailer
    The brakes in the picture look like they have the offset 4 bolt pattern that Hayes/AL-KO brakes use. On that bolt pattern the top two holes are spaced further apart than the bottom 2 holes. If they are 12 x 2 inch brakes then we have some with that bolt pattern: # 23-106-09 for the right side and # 23-105-09 for the left. We do not have just the magnets for your existing brakes though.
    view full answer...
  • Can Brakes be Added to the Second Axle of a Tandem Axle Trailer
    Yes, you can add additional brakes to the non-braking axle of your trailer if the axle has brake mounting flanges welded to it. If the axle does not have brake mounting flanges when they will have to be welded on. This is a precision job that requires a special jig and someone with experience in welding on brake mounting flanges. I have included a link to the brake mounting flanges we carry. I have also included a link to our help article on adding electric drum brakes to a trailer....
    view full answer...
  • What is the Difference Between Dexter Trailer Brake Assemblies # 23-105-09 and # 23-105
    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
    view full answer...
  • Will Dexter Brake Assemblies 23-105 and 23-106 Replace Kelsey Hayes RH602041 LH602042
    Most likely the # 23-105-09 and # 23-106-09 would work well for you, but you need to verify one more thing. Does the current brake assembly you have attach to the axle with 5 nuts? If so, then you have the standard bolt mounting pattern these two would fit well. These are 6k capacity assemblies as well.
    view full answer...
  • Recommended 12 x 2 Inch Brakes for Older Flying L Gooseneck Horse Trailer w/ 4 Bolt Mounting Flange
    When it comes to brakes for your boss's older Flying L gooseneck horse trailer, I believe that I have exactly what you are looking for, # 23-105-09 and # 23-106-09 for a 6,000 lb axle. I have included a picture which includes the mounting hole measurements for these brakes. Although these measurements are very close to those that you have provided, I recommend measuring one more time to ensure that they will work for you. As for hubs with a 6 on 5-1/2 bolt pattern, you can use Trailer...
    view full answer...
  • Replacement Brake Assemblies for 2002 Cougar 276 5th Wheel with 3500 lb Axles
    A 3500 lb axle would typically use a 10 x 2-1/4 inch brake assembly. You can check this by measuring your existing hub/drums. The inside diameter and depth of your drum (see photo) will be needed to choose the correct replacement brake assembly. You will also need to make sure that the brake assembly you choose has a bolt pattern that matches the brake mounting flange. For a 10 inch assembly, your mounting flange should have 4 holes laid out in a square pattern. If you discover that...
    view full answer...
  • Replacement 12 inch by 2 inch Brake Assemblies for 6k Axle that Use 4 Bolt Mounting Pattern
    We have the brake assemblies you are looking for. The only 6k rated 12 by 2 inch assemblies we offer that have the same unique 4 bolt mounting patter are the # 23-106-09 for the right hand side and part # 23-105-09 for the left hand side.
    view full answer...
  • Can the etrailer.com Brake Assemblies Replace Hayes AL KO Brakes Assemblies
    We have brake assemblies that will work for you, but unfortunately it will not work to replace your existing Hayes/AL-KO brake assemblies with our self-adjusting brake assemblies. For your Hayes axle, you will want to use the 12 Inch Electric Brake Assembly, Left Hand # 23-105-09 and Right Hand # 23-106-09. These brake assemblies are designed to work as replacement assemblies for Hayes/AL-KO axles so they will work well on your trailer. The reason other assemblies will not work for...
    view full answer...
  • Troubleshooting Trailer Brake Voltage and Trailer Brake Controller Voltage
    The voltage you receive from your brake controller when you hit the brake pedal is adjustable so you may simply need to change the gain. You also want to consider if you have a proportional brake controller that the internal sensor won't be functioning when at a stop and testing them. Because you are getting 13 volts when using the manual override, the brake controller sounds like it is working. A drop from 13 volts to 11.5 volts is not troublesome but it is interesting. The voltage...
    view full answer...
  • Need Replacement Electric Brake Assembly For Old Flat Bed Trailer
    I walked out to our warehouse and pulled the Dexter 12 Inch Electric Brake Assembly # 23-105-09. It appears you do have a 12 inch brake assembly, and the measurements you provided match that of the Dexter Brake Assembly. The # 23-105-09 is the left side brake assembly, for the right side of your trailer, you will need Dexter 12 Inch Electric Brake Assembly # 23-106-09. This Dexter brake assembly will fit a 4-bolt brake mounting flange. Checkout the short video I produced for you...
    view full answer...
  • Install Hardware for 12 inch Trailer Brake Assemblies
    For 12 inch assemblies like the # 23-105-09 that you referenced we have the bolts part # BRKH12 designed as a fit. This is a kit with nuts, washers and bolts. This is all you'd need to install the assemblies after removing your old ones.
    view full answer...
  • Can Trailer without Brakes Have Brakes Installed
    We do have the parts you'll need to add brakes to your trailer that does not have any currently. It will require you to know what spindle dimensions you have currently to be able to pick out the hub drums and then from there pick out the correct brake assemblies. I attached a guide for adding brakes to a trailer for you to check out as well.
    view full answer...
  • Brake Assemblies that Fit Hayes 7k Brake Assemblies with 4-Bolt Mounting Pattern
    The # 23-105-09 would work well since the dimensions and bolt pattern are correct for your Hayes 7k setup. Typically brake assemblies in this size will have weight ratings that range from 5,200 up to 7k so the # 23-105-09 will work well as they match size and bolt pattern.
    view full answer...
  • Available 12 x 2-Inch 6K-Rated Electric Trailer Brakes with 4-Bolt Mounting Pattern
    All of our 12 x 2-inch 6K-rated electric trailer brakes are shown on the linked page. Most of these use the 5-bolt mounting pattern but a few Dexter products include holes for BOTH bolt patterns, both 5-bolt and the 4-bolt Hayes/AL-KO pattern, parts # 23-105-09 (left) and # 23-106-09 (right). We also offer them as a set, part # 23-105-106-09.
    view full answer...
  • Differences Between # 23-458 and #23-106-00 12 by 2 Inch Brake Assemblies
    Other than both brake assemblies being a 12x2 inch for a 6K axle, there are several differences between the two brake assemblies. Brake assemblies are either right or left side of the trailer specific. The # 23-458 is for the left side of a trailer while # 23-106-09 is for the right hand. The # 23-458 is a Nev-R-Adjust assembly that will self adjust each time the trailer is backed. The # 23-106-09 requires the brakes be manually adjusted. The # 23-106-09 is compatible with either...
    view full answer...

Do you have a question about this Accessories and Part?

  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Reno H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Installed by:
Jeff D
Installed by:
Robert C
Video Edited:
Chris R
Updated by:
Sarah W
Updated by:
Alexander C
Video by:
Jonathan Y

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.