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  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 Brake Kit - 12" - Left and Right Hand Assemblies - 6K

Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K

Item # 23-458-459
Our Price: $288.38
Trailer Brakes
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Shipping Weight: 30 lbs
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Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K 12 x 2 Inch Drum 23-458-459
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12" x 2" Driver's-side and passenger's-side electric trailer brake assemblies fit 6,000-lb axles. Mounting flanges have a 5-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fit 14.5" to 16" wheels. Great Prices for the best trailer brakes from Dexter. Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K part number 23-458-459 can be ordered online at or call 1-800-940-8924 for expert service.
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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
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snow Trailer
  • Utility Trailer
  • Self Adjust
  • Dexter

12" x 2" Driver's-side and passenger's-side electric trailer brake assemblies fit 6,000-lb axles. Mounting flanges have a 5-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fit 14.5" to 16" wheels.


  • 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
  • Nev-R-Adjust 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
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assemblies and off of the shoes
  • 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


  • 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

23-458 12" Nev-R-Adjust Electric Brake Assembly for 6K Axles - LH

23-459 12" Nev-R-Adjust Electric Brake Assembly for 6K Axles - RH

Customer Satisfaction Score:

Customer Reviews

Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K - 23-458-459

Average Customer Rating:  4.8 out of 5 stars   (2102 Customer Reviews)

12" x 2" Driver's-side and passenger's-side electric trailer brake assemblies fit 6,000-lb axles. Mounting flanges have a 5-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fit 14.5" to 16" wheels.


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 - 08/01/2022


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...
Erik - 10/01/2022


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?

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.
-- Etrailer Expert Andrew N - 10/11/2022


The product was as advertised and worked well. The packing on the other hand, was poor. Too large of a box and no packing material inside. The four boxes were loose and blew out the bottom of the packing box. UPS had to deliver the package upside down because of the condition of the box. Upon inspecting the parts I noticed brake shoes had become dislodged and I had to re-align them before installing.


Installation was easy. Initial adjustment was just like drum brakes on a car and after that I followed the instructions to get the self adjusting dialed up by repeatedly applying trailer brake from lower speeds. they are all adjusted and work great!


The parts came quickly and at a fair price, they did exactly what they were supposed to do. I am very happy with ETrailers staff and the info for the installation.


Excellent customer service, reasonable pricing, timely shipping and delivery,, and quality parts for the past 10 years of doing business with Keep up the good work.


Thanks Kristy for the phone help and quick shipping.... E-Trailer is always my go to for our 5th wheel parts.... Jay


As usual with etrailer I ordered a much cheaper brake kit but that one was out of stock and back ordered. It’s frustrating cuz this seems to happen a lot with etrailer. The Dexter brake kits were top quality, bolted on easily and work great. They are made in USA which all of us should be more concerned with. The first product I selected was a chinese made product but the price was right. I am very pleased with the product it’s self, however coming out of pocket with almost $200 more for the the Dexter brakes was an unexpected cost. etrailer needs to stop selling products they do not have in stock!!

Josh - 02/13/2022


Sheryl was very helpful and knowledgeable in getting the right product to fit my Timbren suspensions. They were out of one of the Brake packages but she kindly split the order for us and got us what we needed asap while the other item is being restocked. Sheryl gets 5 stars from me!


The product was received 2 days earlier than originally estimated. This was largely due to Etrailer shipping the product on the same day that I ordered it. It arrived undamaged and was easy to install. The one problem that I encountered was trying to adjust the brakes using the star wheel. I found this to be impossible task. Upon contacting Etrailer, I was told to burnish the brakes. This indeed did the trick. Etrailer should include this tip in their installation video. It will save future installers time as well as reduce their frustation.


To be honest they ate still in the nox sitting in my shop. We are too busy to place the trailer putbof service and do the work. So as of Now they are looking great in the box.


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.


Had problems with regular braking systems applying enough breaking power, No matter how well you kept the brakes adjusted on the trailer the problem was still there I drive a 2021 Ford F-350 a 2015 f350 and a 2012 all with the same problem! Switched to the never adjust breaks and now they work great , this is on a 1990 Logan coach trailer I also have a 2010 platinum trailer with the same problem and will switch to the never adjust brake system on it also
This seems to be a Ford problem but Ford hasn’t been able to come up with a fix, no matter how high you set the brake settings you end up with the same problem very little braking power, was quite surprised and pleased to have the problem solved with the never adjust braking system, don’t know why they work and quite frankly don’t care


The brake kit is excellent. Very easy to install, and in my opinion, they are very good quality. The trailer has about 22,000kms since installation, and the brakes are still in great condition. Have used these before and would recommend these to anyone.


The delivery time of the brake kits exceeded expectations and the ease of installation of the product was fast and easy. The whole process made for a great experience.


This company does sell honest to God American Made Parts keep up the good work you Guy


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.


If a new RV isn't going to have disk brakes, then they should all come with these. Pretty straight forward replacement. I didn't get new drums, just had the old ones turned.


A reviewer on your site mentioned his grease seals leaking. Well that's just what seems to have been the problem on our trailer. Although the brake shoes and magnets were worn the real problem was the grease, I think from the previous owner pumping too much grease in after each use. I've replaced the brake units and inner seal on one axle(the front) and it should make quite a difference. Glad I went with original Dexter parts.


The installation when good.So far everything is working great.


The four bake units all
Looked good.
I will be installing the this week on the trailer


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.

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.
Kent C - 04/25/2020


It’s been a year and almost 5K miles on the new brakes. Absolutely no problems whatsoever. Will definitely purchase again when the time comes.

I replaced them about 4 months ago with the Lippert brakes. I wasn’t happy with the performance I was getting out of the Dexter Brskes.
Bill S - 09/28/2021


Super easy to install, very fast shipping and packaged well. I replaced all the brakes on my horse trailer, due to worn out wiring on the magnets, which was causing brake failure.

Show More Reviews

See what our Experts say about this Dexter Trailer Brakes

  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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 12" Dexter Electric Brakes for 5,200 Pound Trailer Axle
    For your 5,200 pound axle I recommend the Dexter Nev-R-Adjust Electric Brake Kit # 23-458-459, which includes both the Left Hand and Right Hand Assemblies. These 12" x 2" Nev-R-Adjust assemblies will eliminate the need for any manual adjustments down the line and they're made right here in the USA. I just recommend making sure your existing assemblies feature the same 5 bolt mounting flange pattern that you see on these. I have included a couple short video demonstrations that you can...
    view full answer...
  • Correct Braking Assemblies for a 2013 Jayco Jay Flight 28BHBE
    The correct electric trailer brake kit for a 2013 Jayco Jay Flight 28BHBE is the Dexter Nev-R-Adjust Electric Trailer Brake Kit part # 23-458-459. That said, I understand this may be confusing because the axle tag says you have a 4,400 lb axle and the above brakes are for a 6,000 lb axle but this particular axle actually uses the larger brakes so no need to get hung up on this.
    view full answer...
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  • 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
  • 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...
  • 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...
  • 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
  • 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
  • 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...
  • 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...
  • 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
  • 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...
  • 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 Trailer Brake Assemblies for Trailer with Assemblies Held on with 5 Lugs
    Since your brake assemblies are held on with 5 bolts that would mean they are 12 inch diameter by 2 inch width and the correct assembly set you'd need would be the part # 23-458-459 which are self-adjusting. If instead that is your wheel bolt pattern and you are looking for components needed to add electric brakes to your trailer check out the help article I attached that covers all of that process.
    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...
  • Replacement Trailer Brake Assemblies For 2015 Griffin 12' Dump Trailer
    I recommend the Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 for your 2015 Griffin 12' dump trailer. The information I could find on your trailer shows it uses 5,200lb Dexter axles with electric brakes. These will replace the brakes on one axle and as they are self adjusting you will have a more consistent brake feel and not have to adjust the brakes every 3,000 miles. If you have something different please let me know and I can ensure the correct brakes.
    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...

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