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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Trailer Brakes

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Trailer Brakes 23-450-451 - Brake Set - Dexter Axle
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Product Images

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  • 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
  • Dexter Axle
  • Self Adjust
  • Brake Set
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 800-298-8924 for expert service.


  • All Info
  • Reviews (4)
  • Q & A (7)
  • Videos (1)
  • Photos
  • Why etrailer?

Dexter Axle Trailer Brakes - 23-450-451

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







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


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Dexter Axle Trailer Brakes - Electric Drum Brakes - 23-450-451 Review

Today we're gonna take a look at the Dexter 12-1/4" Self-Adjusting Electric Trailer Brake Kit, with the left-hand and right-hand brake assemblies for 9,000-pound to 10,000-pound general duty axles. Now electric bakes, they're easier to install, they offer more user control than hydraulic brakes. Basically they require only an electric brake controller, which we do sell separately on our website. There's no actuator hydraulic lines necessary with electric brakes. Now these are self-adjusting brakes, you can tell that by the cable that you see runs around the pulley, attaches to the lever down here that will automatically adjust your bakes. Now self-adjusting brakes automatically adjust and they deliver optimum performance in braking power, so there's no need for any manual brake adjustments, and because they're automatically adjust at the proper adjustment, will lead to better brake efficiency and less wear on your tow vehicle's brakes. Also if you notice on these, they do use a cast backing plate now. Now this part number does include both the left-hand driver's side assembly and the right-hand passenger side brake assemblies.

Now the mounting hardware to install these is sold separately. A few specs on this, the dimension on these assemblies is 12-1/4" diameter, by 3-3/8" wide, and where that's measured, the diameter would be measured from this brake shoe all the way over to this brake shoe. So if we put a ruler on that, there's your 12-1/4" diameter. The width would be the width of the pad on the shoe, so if we put a ruler on that, there's your 3-3/8" wide, and this does require a brake mounting flange bolt pattern of seven bolt holes. You can see there's the seven holes to install it. Now these assemblies do require the use of 12-1/4" brake drums.

The wheel size that'll fit on these is 15 inches or larger, and again, the axles these are designed to fit on are 9,000-pound to 10,000-pound general duty axles. Now these are electric brakes, so if you notice, they do have two wires in the back, two yellow wires, so they do need to be connected. One goes to a brake feed, the other goes to a good clean ground, and they're both yellow wires, so either wire can be used for either function. And then the last thing I just want to show you is how to tell the difference between your left-hand driver's side assembly and right-hand passenger side assembly. Now of course on a new assembly, they'll have stickers on them that'll tell you the difference, but if the sticker wasn't there, the easiest way to tell is just look at the length of the pad on the brake shoe. This pad goes all the way from here to here, this is from here just to here, so this is the shorter shoe.

The shorter shoe will always face the front of the trailer. It's the primary shoe, so that tells you that this is the left-hand driver's side assembly. And on this other one, you can look, here's the pad from here to here, on this shoe it's just from here to here. This is the shorter shoe, so that's the primary shoe, that means that this is right-hand driver's . or right-hand passenger side assembly. But that should do it for the review on the Dexter 12-1/4" Self-Adjusting Electric Trailer Brake Kit with left-hand and right-hand brake assemblies for 9,000 to 10,000-pound general duty axles.


Customer Reviews

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

Average Customer Rating:  5.0 out of 5 stars   (4 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.

- 23-450-451
by:

Exact fit for Dexter d1012 axle. Thank you etrailer for your research in knowing what I needed! 430364



- 23-450-451
by:

Fast shipping and great customer service will definitely be ordering my parts through them from now on 704836



- 23-450-451
by:

exactly what i was looking for came on time 572391



- 23-450-451
by:

AWESOME customer service and fast delivery of products!! Thank you! Will be doing business with you again!!! 483911


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Ask the Experts about this Dexter Axle Trailer Brakes

Do you have a question about this Trailer Brake?


  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...


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Info for this part was:

Edited by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Jameson C
Written by:
Alexander C
Updated by:
Alexander C

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