bing tracking image
  1. Trailer Brakes
  2. Dexter
  3. Electric Drum Brakes
  4. 6000 lbs Axle
  5. 12 x 2 Inch Drum
  6. 14-1/2 Inch Wheel
  7. 15 Inch Wheel
  8. 16 Inch Wheel
Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K

Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K

Item # 23-458-459
Our Price: $260.31
Trailer Brakes
Shipping Weight: 30 lbs
Add to cart
Dexter 12 x 2 Inch Drum Trailer Brakes - 23-458-459
zoom in icon
slider vertical 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

Customer Photos

Need help with installation?
Locate installers near me
Want brake adjustments that go like clockwork? These brakes automatically adjust as you tow so you don't have to crawl around on the ground to do it manually. 12" x 2" Assemblies fit 14-1/2" to 16" wheels. Made in the USA. Great Prices for the best trailer brakes from Dexter. Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K part number 23-458-459 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (2394)
  • Q & A (0)
  • Photos

Dexter Trailer Brakes - 23-458-459

  • Electric Drum Brakes
  • 6000 lbs Axle
  • 12 x 2 Inch Drum
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • 16 Inch Wheel
  • Standard Grade
  • Self Adjust
  • Dexter

Want brake adjustments that go like clockwork? These brakes automatically adjust as you tow so you don't have to crawl around on the ground to do it manually. 12" x 2" Assemblies fit 14-1/2" to 16" wheels. Made in the USA.


  • Self-adjusting brakes let you maintain optimal braking power at all times
    • Ensures reliable contact between the brake shoes and drums
    • Prevents uneven wear on brake shoes
  • Easier to install and gives you more control than hydraulic brakes
    • Requires only an electric brake controller (sold separately) - no actuator or hydraulic lines needed
  • Long-lasting brake pads offer excellent braking torque
    • Fully bonded to shoes for more consistent braking compared to riveted pads
  • Adjuster plugs (included) protect internal components from dirt, grime, and road debris
  • Durable magnets ensure consistent braking power
    • Encased in a stamped steel housing
  • Left-hand (driver's-side) and right-hand (passenger's-side) brake assemblies included
    • Mounting bolts and hardware (BRKH12) sold separately
  • CSA certification ensures quality
  • Made in the USA


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

Quick Tip: There's really not a whole lot to getting new drum brakes. If you've confirmed that all of the specs listed above line up with what you need for your trailer, you can be pretty sure these will work for you.

Self-Adjusting Brakes Don't Require Routine Maintenance

With standard electric brake assemblies, you need to manually adjust them every now and then to make sure you're getting the shortest stopping distance every time you tow.

A trailer drum brake with a red callout shows the location of a tension cable and pulley on a self-adjusting trailer brake.

With self-adjusting brakes, though, you'll always have peak stopping power - simple as that! As the brake pads wear over time, a tensioning cable will automatically keep the pads in alignment so they'll consistently make contact with your drum when you brake. You won't have to do tedious manual adjustments anymore.

Thoroughly Tested for Safety

Dexter invests a lot of resources to ensure that these brakes meet the requirements for certification set by the Canadian Standards Association (CSA). Basically, a CSA certification tells you that these trailer brakes are well built and safe for use on the road.

How to Break In New Brakes

Once you get these brakes installed, you'll need to break them in. First, find a long stretch of road or a big, empty parking lot. Once you're there, set your brake controller to its maximum setting and get moving. Speed up to about 40 mph and brake to slow to about 20 mph. Repeat this 15-30 times. The goal is to get the brake shoes and magnet properly seated into your drum. You'll know you've done that when it feels less jerky (and more consistent) each time you apply the brakes.

Note: The brakes will be very hot after doing this, so after every 10 stops you'll want to wait about 10 minutes to let the brakes cool off before continuing. If you don't, you might cook and crack the pad material.

23-458 Dexter Electric Brake Assembly - LH - Driver Side - 12" x 2" - Self-Adjusting - 6,000 lbs

23-459 Dexter Electric Brake Assembly - RH - Passenger Side - 12" x 2" - Self-Adjusting - 6,000 lbs

Customer Satisfaction Score:

Customer Reviews

Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K - 23-458-459

Average Customer Rating:  4.8 out of 5 stars   (2394 Customer Reviews)

Want brake adjustments that go like clockwork? These brakes automatically adjust as you tow so you don't have to crawl around on the ground to do it manually. 12" x 2" Assemblies fit 14-1/2" to 16" wheels. Made in the USA.


Outstanding is the word that comes to mind regarding my experience with the brake kits that I received from etrailer!
I purchased a used Airstream and the brakes were toast.
I called etrailer and spoke to Joseph and he set me up with the kits I needed.
They arrived in 3 days with free shipping and I had all 4 installed in about 2.5 hours on a Saturday morning.
I would definitely do business with these guys again. It was painless!!!

Steve B.




Just like to say that those self-adjusting brakes that I bought a year ago working fine way better that my old breaks that I had to adjust myself you got yourself a satisfied customer etrailer


Excellent service and etrailer was very helpful on which brakes I needed.


My Brake order was delivered on time .Brake assemblies were in seperate boxes (4) which were in a oversised box allowing them to bang around and dislodge the shoes on one assemblies.Trip to Orilleys auto parts for tools to take assembly apart and reline shoes again .Couple of Hrs. wasted.


The Dexter brake kit was easy to install and are working great. I recommend that you also replace the brake drums as well. I didn't replace mine and the magnets are already getting grooves in them from the worn drums. Next time, I will replace the brakes and drums at the same time.


I ordered 4 brake assembles for my Fifth wheel trailer to be delivered to an RV park we were staying in. They arrived on the day they said they would when I put in the order. Well packaged. Replaced my worn out brakes perfectly. I have ordered from etrailer a few times now and have yet to disappointed with delivery or product.


Exact replacement for original brakes and way less expensive than rebuilding the brakes part by part. I like the made in America labels too!


William was a great help with his advice on replacing my trailer brakes and hubs and what parts and equipment I needed. I purchased with total confidence. To my amazement the parts arrived in two days! Outstanding service from a company I've come to know and trust over many years.


Easy Peasy to install. Just need a chisel, snap ring pliers, and 36mm socket to get the drums off. (Never-Lube bearings) Then a 9/16" socket and some wire cutters to get off the backing plate. Be sure to get heatshrinking crimp-on connectors to reattach the wires behind the backing plate. Everything went together smoothly. Still need to tow the trailer and let the self adjusters do their thing, but it'll be awhile before our next trip.
FWIW we have an Airstream with about 50K miles on it and I replaced the brakes as a precaution. They actually still had many miles remaining on the linings and magnet.



Still working fine. Have put many miles on the new brakes - like participating in a caravan that went around the island of Newfoundland for two months...


Very nice brake set up. Delivered as stated. Installation was a snap.
Pre lubed hubs are the way to go. Just slide them on and set the tension.
One dust cap was dented in shipping or packaging? But did not defray from the product quality.


I recently completed a brake upgrade on my trailer. The new Never Adjust Dexter Brakes went on flawlessly. I found the process to be straight forward. The self-adjusting feature was an upgrade from the previous brakes but bolted on with no issues. I like the idea of not needing to adjust brakes as the pads wear down. I needed all new brakes, this seemed like the best decision for replacements.


Brakes were perfect fit and still working great.
Would highly recommend.


Parts arrived quickly and installed properly. Good follow-up after the sale. Overall a positive experience.


Great customer service! Excellent help finding the correct parts. I had some unusual issues that where resolved quickly. Was even provided a direct phone number. Don't get that kind of service much these days!


The whole experience of ordering my replacement brake assemblies was awesome. Teresa did a fantastic job of figuring out which parts I needed. I would not hesitate to order parts from e-trailer in the future. The quality and fit-up of the Dexter brake assemblies made repairing my rv easier than I could have imagined. I am one happy camper. Thank you for an awesome consumer experience from start to finish.

Kent C.


The parts I purchased are working fantastic. I still consider the complete experience to be a 5-star transaction and will definitely order from e-trailer if I need parts in the future.


Product was in original Dexter box inside shipping box. Everything looks great. I probably won’t instal till the fall since current brakes will get me through Summer trip.


great stuff


Your Nev-R-Adjust Trailer Brake Kits are working great, but when it comes time to replace them, how do you release the shoes that have worn into the drums so that the hubs can be removed?

Etrailer Expert

Andrew N.


The hubs should slide right off the electric brake shoes. Sometimes you need to use a hammer to remove the hub. In some rare cases, voltage could be going to the brakes when it shouldnt be, leading to the brakes being engaged when the trailer is stopped. You would need to cut the voltage or disconnect the brake controller to release tension. Lastly, you can try using a flat screwdriver to spin the adjuster wheel underneath the brakes to release tension.


Perfect fit, and easy to install!


Products arrived as specified by etrailer and very satisfied with ordering ease and delivery timeline.


Exactly what I needed.


I ordered 4 brake assemblies 4 mo ago and just got around installing them. Found one assembly bad and contacted etrailer expecting them not to replace due to the time frame. Thanks to Kate F., she made things right and sent a replecement.


Thank You etrailer and in particular Adam E. I realized that the brakes on my 2005 Airstream Safari were not going to adjust enough to provide safe braking for our planned trip from Indianapolis, IN to Santa Fe, NM, Cortez, CO, and Moab, UT I called etrailer on Thursday Sept 26 and spoke with Adam E. I explained my trailer setup -
12 x 2" brakes on a 4400# Henschin double axel The brakes I was looking at were listed for Dexter and Lippert axels - there was no mention of the Henschin axels I was working with. I asked Adam E. if he had the bolt spacing for the 5 bold mounting flanges - he researched a diagram in etrailer archives which showed the bolt pattern and spacing - I matched the pattern and ordered for overnight shipment - Adam E. made shure my order was shipped - they arrived as requested on Sept. 27 I installed the Dexter brakes successfully on Sept. 28 and we left Sept. 29 on a wonderful 4100 mile trip through the great SouthWest with comfort and confidence knowing we had plenty of stopping power for any terrain we might find. Thank You Adam E. and etrailer Great People / Great Service / Great Products / Great Prices


It’s nice to actually have what you ordered in a tight time frame arrive on time. I only had one day available to do the the work required to finish this job. Of brakes and bears repacked.


Packaging was great.



Excellent. Assemblies received were OEM specific and met my expectations.

Show More Reviews

See what our Experts say about this Dexter Trailer Brakes

  • US Replacements for Dexter k23-466-00 and k23-467-00 Brake Assemblies
    We have the correct fit for your Dexter electric brake assemblies k23-466-00 and K23-467-00 (Canadian) replacements meeting US standards. You will use the Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K # 23-458-459 to buy a set or you can purchase them individually using # 23-458 for the left and # 23-459 for the right side.
    view full answer...
  • How to Find Hubs for a 2005 Titan Gooseneck Trailer
    In order to find the correct hub/drums to use with the Dexter Nev-R-Adjust Electric Trailer Brake Assembly part # 23-458-459 (part # 23-459 + part # 23-458) we are going to need to know your bearing numbers or measurements. We would also need to know the bolt pattern of your wheels. I have attached articles for determining both bearing numbers/measurements and bolt pattern for you. If you can provide me with the bearing numbers/measurements then I would be happy to help you make sure you...
    view full answer...
  • Does it Matter Which Wires are Power or Ground for Electric Trailer Brakes
    It sounds like you are asking what wire should be ground and which is power for installation of the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459. The wires can be used for either, so if you want to use the black for ground you can, and the white wires will then be the power wires. You should then connect the ground wire to the trailer frame and connect the others to power like in the cut out I added. This is from the linked help article "Parts Needed to Add Electric Drum...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Is Dexter 23-458-459 Replace 23-458-00 12 Inch Brake Assembly
    Yes it sure will. The Dexter # 23-458-459 consists of both the right and the left 6K 12 inch self-adjusting brake assemblies. Part # 23-458-00 (or # 23-458 which is the number we use) would only include the left hand brake assembly. If you click the provided link, you can see a video showing the brake assembly being installed by my buddy David.
    view full answer...
  • Troubleshooting Trailer Brakes on One Side that Apply Harder than the Other
    The issue seems to be different adjustment than the other side. Most likely the time delayed onset of the braking pressure is locking up the one side of the trailer before the other due to it being a tighter adjustment. What you can do is tow the trailer around at a slower speed and apply the trailer brakes with your override lever several times and witch each application they will tighten by one click until they are equally tightened between both sides.
    view full answer...
  • How to Initially Adjust Dexter Nev-R-Adjust Electric Trailer Brakes
    You can initially adjust your Dexter Nev-R-Adjust Electric Trailer Brakes # 23-458-459 but the adjustment tool you are using might just be too thick to get to the adjustment wheel. You should use something that allows you to more easily access that wheel (as shown in picture) such as a flathead screwdriver. If you go to the linked video and forward to about the 14:15 mark you can see a flathead screwdriver being used to make an initial adjustment.
    view full answer...
    Image 1 for
  • Can Dexter Nev-R-Adjust be Used to Replace Warner Trailer Brakes
    Your pictures didn't come through but I am attaching a picture with the distance between each of the mounting holes on the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 assemblies. If the mounting flange bolt dimensions match up with these mounting holes then yes, you can definitely use them on your trailer.
    view full answer...
    Image 1 for
  • Replacement Trailer Axle to Replace Trailer with Older Style Brakes that Are Outdated
    I wish we could help, but only option we can point you towards would be new axles as what you sent in a picture of is not compatible with anything we sell. You are going to need to measure your current axles in a few places to get the correct one as we don't have access to what your numbers reference. You will need to measure from hub face to hub face and then from the spring seat centers. You will also need to know what bolt pattern you have on your current hubs. I attached a help article...
    view full answer...
    Image 1 for Image 2 for
  • Brakes For 10,000lb Dump Trailer 5200lb Double Axles With 12x2 Inch Drum Brakes
    Yes, since the brake kit is rated up to 6000 per axle and has a 12 x 2 Inch drum you should have no issues applying Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459. This kit fits wheel sizes 14-1/2", 15", and 16". The (extra) steel cable you see is part of the linkage mechanism which makes the assemblies adjust automatically. Can you provide me with your inner and outer bearing numbers I will recommend a flat washer that fits?
    view full answer...
  • Replacement Brake Assemblies for Dexter 5,500 lb Torflex Axle
    Since you have self adjusting brakes on your Torflex 5,500 lb axle the correct replacement would be the part # 23-458-459. It's almost always best to replace entire assemblies and not just the pads as the pads end up costing quite a bit, are much harder to install, and you don't end up with new magnets at same time which do wear out as well.
    view full answer...
  • Do Trailer Brake Assemblies Have Front or Rear Axle Designations
    Brake assemblies like the set part # 23-458-459 can be used in a front or rear axle. You do have to match the correct left and right assemblies to the right side of the trailer but from front to back there is not difference.
    view full answer...
  • Replacement Brake Assemblies for my 2006 Montana with Dexter 6k Axles
    Dexter has changed part numbers over the years but since we know you have Dexter 6k axles the Nev-R-Adjust assembly set part # 23-458-459 is a fit and will work great. This is a self adjusting set that you'll never have to worry about brake adjustments. I attached an install video for this for you to check out as well.
    view full answer...
  • Dexter 12 inch Brake Assembly Set Recommendation for 1998 Jayco Eagle
    We have just what you need since you said you have 12 inch diameter Dexter brakes currently. For a set of 6k rated 12 inch, Dexter brake assemblies you'd want to the Dexter Nev-R-Adjust kit part number # 23-458-459. I attached an install video for this pair of assemblies for you to check out as well.
    view full answer...
  • Replacement Brake Assembly Kit for AL-KO 6K Axles with 5 Bolt Pattern
    The Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 is the correct replacement kit for most AL-KO axles including the K363233.2 and K363233.1. These brake assemblies automatically adjust as your brake shoes wear to provide the best braking. I've attached some videos to assist.
    view full answer...
  • Troubleshooting the Adjustment or Lack of Adjustment on Self-Adjusting Brakes
    To get your brake assemblies to start self-adjusting after the initial manual adjustment at install, you will need to hit the brakes hard multiple times. I recommend having the truck and trailer on a fairly smooth and level surface in a parking lot for this adjustment. You will slowly accelerate to no more than 20 mph, then hit the manual override on your brake controller to its max. It will be jarring, so be prepared. You will need to do this a few times. Then you can do the same...
    view full answer...
  • Will the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 Replace 23-326 and 23-327
    Yes, the brake assembly kit part # 23-458-459 will be just what you need since it is a pair of 12 inch by 2 inch assemblies with a 6k axle capacity.
    view full answer...
  • Can Brake Pad Life Be Checked Without Removing The Hub/Drum Assembly
    The only way to check the brake pads with your Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 would be the remove the hub/drum assemblies. Since your bearings need to be repacked at minimum once every 12k miles or 12 months I usually recommend checking the brake pads during this maintenance since you'll have to remove the hub/drum anyway. Realistically though you can still just pull the outer bearing and remove the hub/drum assembly at any time since the grease seal will...
    view full answer...
  • Recommended Brakes for 6,000 lbs Axles on a Car Trailer
    So long as the axles on your car trailer have a 5 bolt brake mounting flange on them the Dexter Nev-R-Adjust Electric Trailer Brake Kit item # 23-458-459 will work. The Dexter Nev-R Adjust brakes are 12" diameter x 2" wide and are made in the USA. They will work with 14-1/2", 15", and 16" tires and are rated for 6,000 lbs axles.
    view full answer...
  • Which Wire on Dexter Trailer Brake Magnets is Power and Ground
    Trailer brake magnets are not polarity sensitive. Either wire can be used as the power wire and the other for ground.
    view full answer...
  • Dexter 12 Inch Left Hand Brake Assembly For 5K Axle
    For your 5,000lb axle, with a 12" brake assembly, you can use the: -Dexter Nev-R-Adjust Electric Trailer Brake Assembly # 23-458. Even thought this is stated to work for a 6K axle, it will work perfectly fine with your 5K axle. Should you want the left and right sides, you can use the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459. I have included a couple installation videos for you to check out as well.
    view full answer...
  • Should Electric Trailer Brakes 23-458-459 Have Four Wires to Magnet
    Electric trailer brakes like the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 should only utilize two wires, the power and the ground. You do need to connect each of the wires to your brake assemblies, and each should have its own ground. If you haven't completed the set up then that would be why the brakes aren't all operational as of yet. If you take a look at the cut out I added you can see how the wiring should go for your brakes. I have also added a link below to an...
    view full answer...
    Image 1 for
  • Replacement Brakes for 1983 Airstream Excella
    Based on an old brochure from Airstream it looks like you have 12" electric drum brakes like the Dexter Nev-R-Adjust # 23-458-459. These are 12" diameter x 2" wide brake assemblies with a 5 bolt brake flange pattern. I recommend double checking what you currently have to verify this information. As for shocks, everything indicates you have torsion axles. Unfortunately, we do not carry any shock kits for torsion axles.
    view full answer...
  • Correct Replacement for Dexter Trailer Brake Assemblies 023-466-00 and 023-467-00
    The Dexter Trailer Brake Assemblies 023-466-00 and 023-467-00 will cross-reference to our Dexter Nev-R-Adjust Electric Trailer Brake Kit part # 23-458-459.
    view full answer...
  • 6,000 lbs Nev-R-Adjust Electric Brake Assemblies
    Yes, there are Nev-R-Adjust brake assemblies for the Dexter item # 23-105 and item # 23-106 brakes. They are the Right Hand Dexter Nev-R-Adjust Electric Trailer Brake Assembly item # 23-459 and Left Hand item # 23-458. For the set you will want the Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K item # 23-458-459.
    view full answer...

Do you have a question about this Trailer Brake?

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Cole B
Installed by:
Cole B
Employee David F
Installed by:
David F
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C
Employee Ryan F
Written by:
Ryan F

At 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.