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  1. Trailer Brakes
  2. Dexter Axle
  3. Electric Drum Brakes
  4. 9000 lbs Axle
  5. 10000 lbs Axle
  6. 12-1/4 x 3-3/8 Inch Drum
Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K

Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K

Item # 23-450-451
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Our Price: $650.66
Trailer Brakes
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Trailer Brakes 23-450-451 - 12-1/4 x 3-3/8 Inch Drum - Dexter Axle
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12-1/4" x 3-3/8" Driver's-side and passenger's-side electric brakes fit 9,000-lb to 10,000-lb axles. Mounting flanges have a 7-bolt pattern. Self-adjusting brakes require little maintenance. Fit 16" or larger wheels. Lowest Prices for the best trailer brakes from Dexter Axle. Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K part number 23-450-451 can be ordered online at etrailer.com or call 1-636-306-4830 for expert service.
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Dexter Axle Trailer Brakes - 23-450-451

  • Electric Drum Brakes
  • 9000 lbs Axle
  • 10000 lbs Axle
  • 12-1/4 x 3-3/8 Inch Drum
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snow Trailer
  • Utility Trailer
  • Self Adjust
  • Dexter Axle

12-1/4" x 3-3/8" Driver's-side and passenger's-side electric brakes fit 9,000-lb to 10,000-lb axles. Mounting flanges have a 7-bolt pattern. Self-adjusting brakes require little maintenance. Fit 16" or larger wheels.


Features:

  • Electric brakes are easier to install and offer more user control than hydraulic brakes
    • Require only an electric brake controller (sold separately) - no actuator or hydraulic lines necessary
  • Self-adjusting brakes automatically adjust to deliver optimum performance and braking power
    • No need for manual brake adjustments
    • Proper adjustment leads to better brake efficiency and less wear on your tow vehicle's brakes
  • Left-hand (driver's-side) brake assembly and right-hand (passenger's-side) brake assembly included
    • Mounting bolts and hardware sold separately
  • Made in the USA


Specs:

  • Dimensions: 12-1/4" diameter x 3-3/8" wide
  • Mounting flange bolt pattern: 7 bolt
  • Wheel size: 16" or larger
  • Axle rating: 9,000 lbs - 10,000 lbs


23-450 Dexter Electric Brake Assembly, LH 12-1/4" x 3-3/8" - Self Adjust - 9,000 lbs to 10,000 lbs

23-451 Dexter Electric Brake Assembly, RH 12-1/4" x 3-3/8" - Self Adjust - 9,000 lbs to 10,000 lbs






Customer Reviews

Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K - 23-450-451

Average Customer Rating:  4.9 out of 5 stars   (14 Customer Reviews)

12-1/4" x 3-3/8" Driver's-side and passenger's-side electric brakes fit 9,000-lb to 10,000-lb axles. Mounting flanges have a 7-bolt pattern. Self-adjusting brakes require little maintenance. Fit 16" or larger wheels.

by:

Customer service is always spot on! Be aware that this kit does not come with new hardware (bolts & nuts) and it does not come with a backer plate. Make sure you save the old stuff.




by:

Etrailer was very easy to work with. I changed my order and then changed it back and staff was friendly and helpful everytime I called. Packages were on back order and I was notified of how long and product was here right when they said it would be.




by:

Exact fit for Dexter d1012 axle. Thank you etrailer for your research in knowing what I needed!




by:

My name is Albert, I recently ordered a set of electronic brakes for my trailer(2 10,000 lbs axles). The product and service was outstanding. Greg was the representative I dealt with he was very patient, helpful and supportive as this process was new to me. As a result of such helpful service the next few days I ordered all new bearings and seals for my axles. I consider the company great to work with in getting you what you need and getting it right the first time




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Extremely pleased’n




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Perfect fit




by:

Arrived faster than what they said. Great service




by:

Perfect fit




by:

Fast shipping and great customer service will definitely be ordering my parts through them from now on




by:

AWESOME customer service and fast delivery of products!! Thank you! Will be doing business with you again!!!




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exactly what i was looking for came on time




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See what our Experts say about this Dexter Axle Trailer Brakes



  • Replacement Electric Brake Assemblies For a 2018 Big Tex 22GN Trailer With 10K Dexter Axles
    The Dexter Electric Brake Kit # 23-450-451 are the brakes you will need for your 2018 Big Tex 22GN with the 10,000lb Dexter axles. These are sold per axle so you will need 2 sets to replace all 4 of your brake assemblies. They are also sold individually as the Left # 23-450 and Right # 23-451 if you have a need to only replace one in the future. With self adjusting brakes like these it is more common for them to all wear evenly and need replaced at the same time.
    view full answer...
  • Replacement Dexter Electric Brakes for Trailer with 9,000 or 10,000 Pound Axles
    For the axles on your trailer, I recommend the Dexter Electric Brake Kit # 23-450-451. These are self-adjusting brake assemblies that measure 12-1/4 inches x 3-3/8 inches. These particular brake assemblies are designed for 9,000-10,000 pound Dexter axles, so they will work great whether you actually have a 9,000 pound or 10,000 pound axle on the trailer. To ensure they will fit perfectly, you can take a couple of quick measurements on your existing drum to verify they are 12-1/4 inches...
    view full answer...
    Image 1 for
  • Replacement Electric Brake Assemblies For 10,000LB Dexter Axles On Big Tex 22GN Gooseneck Trailer
    The Dexter Electric Brake Kit # 23-450-451 are the brakes used on the 10,000LB Dexter axles that are found under the Big Tex 22GN Gooseneck Trailer. You will need 2 sets to replace all 4 of the brakes on your trailer. If you want to replace any of the bearings or oil seals while you will have them off to replace the brakes I can confirm the correct parts needed if you can provide me with the serial numbers off your axles.
    view full answer...
  • Replacement Brake Assemblies for Dexter 10,000 lb Trailer Axles
    How is the adjustment of the assemblies? Typically the problem you are having is due to the assemblies not being adjusted properly. Ideally they are tight enough that there's a light drag as you turn them by hand. To see how to manually adjust trailer brake assemblies check out the video I attached, fast-forward to the 4:35 mark of the video. Since we know you have 10k Dexter axles the correct brake assemblies are the part # 23-450-451 for if you have an electric brake setup or part...
    view full answer...
  • Replacement Brake Assemblies for Trailer with Dexter 10k Axles
    If you can measure the width of your current brake assembly pads I can get you the correct brake assembly set for your Dexter 10,000 lb axles. If the pads are 3-3/8 inches wide you'd want the part # 23-450-451 or if they are 4 inches wide you'd want the part # 23-438-439. I tried looking up the numbers on the tag you sent a picture of and was not able to find anything.
    view full answer...
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  • Replacement Brake Assemblies for Big Tex 22N Trailer
    I looked up your Big Tex 22N and was able to determine that it has 10k Dexter axles so for brake assemblies you'd wan the part # 23-410-411 for if you have hydraulic brakes or # 23-450-451 for electric and you'd be set.
    view full answer...
  • Replacement Brake Assemblies for Rockwell 10k Trailer Axle
    Rockwell trailer axles use standard trailer brake components so yes a 10k Dexter brake assembly like the Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K # 23-450-451 if your hubs are 12-1/4 by 3-3/8 inches. If your hubs are the 4 inch width, then you will use the Dexter Electric Trailer Brake Kit # 23-438-439.
    view full answer...
  • Brake Assembly Recommendation for BigTex 20ac With 10k Axles
    The brake assembly set you need for each of your 10k Dexter axles is the part # 23-450-451. This set of left and right assemblies is exactly what your Dexter axles need and they are self adjusting as well.
    view full answer...
  • Installing the Magnet Retainer Clip on a 10K Electric Brake
    The magnet clips # BP19005 should not be making contact with the drum while the brakes engage, so I do not think that is the problem. What I think is going on is it's just not seating all the way. These can get a little squished or deformed causing this to happen, so it is fairly common. When snapping in place, you definitely want to push it in harder than you would expect to. You should get a pretty solid click/snap when it is fully seated. You should be able to gently pull on the magnet...
    view full answer...
  • Brake Assemblies for AL KO 10,000 lbs Axles
    Yes, we do have brake assemblies for 10,000 lbs AL KO axles. You are looking for the Redline Hayes/AL-KO Electric Trailer Brake Kit - 12-1/4" - Left/Right Hand Assemblies - 9K to 12K item # 10257-59. These come as a set and you will need one for each braking axle you have on your trailer.
    view full answer...
  • Replacement Brake Assemblies for Dexter 8-10k Axles
    We do not have any trailer brake magnets that are rated for that high of an axle. We do have the Dexter brake assemblies part # 23-450-451 which are a replacement set of assemblies for 9k or 10k axles by Dexter. For an 8k assembly we have the part # 23-435 for the right hand side and part # 23-434 for the left hand side.
    view full answer...
  • Difference Between etrailer Electric Trailer Brakes And Dexter Electric Trailer Brakes
    The differences between the Electric Trailer Brake Kit w/ Dust Shields # AKEBRK-10 and the Dexter Electric Trailer Brake Assembly # 23-450 are the different manufacturers and that the # AKEBRK-10 have dust shields, and the # 23-450 does not. Also # 23-450 is just the driver side brake assembly, where # AKEBRK-10 includes the driver and passenger side brake assemblies. If you wanted the Dexter Kit you would need the Dexter Electric Brake Kit # 23-450-451 which includes both brake assemblies. Both...
    view full answer...
  • How To Adjust Brakes When The Shoes Are Too Far Apart To Get A Drum Back On
    The Dexter Self-Adjusting Brakes you have ( # 23-450-451) can actually be adjusted when removing and reinstalling, so you will not have to use a sledge hammer again. You will need to go to the back side of the brake to get access to the adjuster, which I included a picture of for reference. Using a slot screwdriver, or a brake adjuster spoon like the # W80630 if you have one, you will need to back it off a little at a time until the drum slides on. I also included an article that has...
    view full answer...
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  • Brake Assemblies and Bearing Replacement for 2015 Big Tex with 10k Dexter Axles
    Since we know your 2015 Big Tex has Dexter 10k axles the brake assembly set you need for each of your 10k Dexter axles is the part # 23-450-451. This set of left and right assemblies is exactly what your Dexter axles need and they are self adjusting as well. Then for bearings you'd want the part # 387A and # 25580 and you'd be set.
    view full answer...
  • Recommended Replacement Oil Seal For A 2015 Big Tex 22GN Trailer
    From what I could find out, the Big Tex 22GN tandem axle trailers use 10,000 pound axles. However, this is the brand new ones so I highly recommend double checking this with Big Tex if you are unsure. They will need the VIN for your trailer, so have that near by. If they confirm this information or if you are already sure you have 10,000 pound axles, it does narrow the search down to 2 options. First is the # 10-51. This will have an inner diameter of 2.875" and an outer diameter of 3.880"....
    view full answer...
  • Replacement 12 Inch Brake Assemblies for Redline EB01-140 and EB01-145 From Dexter Axle
    The EB01-140 and EB01-145 are Redneck Trailer Supply part numbers for a Dexter 12-1/4 x 3-3/8 7-bolt brake assemblies for a 9-10K axle. The proper replacements are available as part # 23-450-451, which includes the left and right self adjusting brake assembly. The mounting hardware is available separately as part # BRKH122510.
    view full answer...
  • Will etrailer.com 12-1/4 inch by 3-3/8 inch Brake Assemblies Replace Dexter Brand
    For your Dexter drums that take assemblies that are 12-1/4 inch by 3-3/8 inch our etrailer.com brand asssembly set part # AKEBRK-10 is a confirmed fit and will save you money over the Dexter kit # 23-450-451. These are both kits for 10k axles. If instead you have 8k you'd need # AKEBRK-8 for etrailer.com brand and # 23-434-435 for Dexter.
    view full answer...
  • Correct Replacement for Dexter Hub/Drum 8-415
    I was able to cross reference the Dexter Hub/Drum 8-415 to the Dexter Trailer Hub Drum Assembly part # 8-430-5UC3 which should be an exact replacement. I don't have any depth measurements of the above/drum but what you would need to measure to confirm is the inside of the contact surface on the hub where the shoe rides and this should measure 12-1/4" x 3-3/8". If so, you should be good to go. In regards to braking assemblies, the best option we have is the Dexter Brake Kit part # 23-450-451...
    view full answer...
  • Does the Oil Seal On a Dexter 10K Hub Need To Be Replaced After Removing
    I think you are asking if the oil seal must be replaced each time the drum is removed and if that is the case then no, the oil seal if in good condition can be reused. For replacement braking assemblies you can use the Dexter Electric Brake Kit part # 23-450-451 which are self-adjusting. If you just want to replace just the lining that is an option as well using part # BP04-255 and part # BP04-245.
    view full answer...
  • Replacement Brake Shoes for Dexter Assemblies # 23-450-451
    For the brake assembly set part # 23-450-451 that you have the shoes you need are # BP04-240 for the driver side and part # BP04-250 for the passenger.
    view full answer...
  • Electirc Brake Kit AKEBRK-8 Dimensions and 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...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for
  • Replacement Bearings For Dexter Model D1012 Axle
    Thanks for the picture! I sent that over to my contact at Dexter and your axle uses the following components: Inner bearing # 387A Inner race # 382A Outer bearing # 25580 Outer race # 25520
    view full answer...
    Image 1 for
  • Replacement Trailer Brakes For Dexter 023-451-00 Electric Drum Brakes
    The Dexter Electric Trailer Brake Assembly # 23-451 being the part number 023-451-00 that you referenced is a right side brake assembly. The Dexter Electric Trailer Brake Assembly # 23-450 is the matching left side brake assembly. This is available as a kit # 23-450-451 since I always recommend changing brakes as a set. We have the etrailer Electric Trailer Brake Kit # AKEBRK-10 which will can also be used. These are the same 12-1/4" x 3-3/8" brakes pads as the Dexter brand and they are...
    view full answer...
  • Replacement Drum Brakes Assembly for 10,000 lb Dexter Axle
    We have drum brake assemblies for your 10K Dexter axles. If you want the electric assemblies, we have the Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K # 23-450-451 if your hubs are 12-1/4 by 3-3/8 inches. If your hubs are the 4 inch width, then you will use the Dexter Electric Trailer Brake Kit # 23-438-439. If you have hydraulic brakes we have the following: # 23-410-411 for 12-1/4 x 3-3/8 inch drum # K23-524-00-2 for 12-1/4 x 3-1/2...
    view full answer...


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Info for this part was:

Employee Lindsey S
Edited by:
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Installed by:
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Employee Jameson C
Expert Research:
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