bing tracking image
  1. Accessories and Parts
  2. Dexter
  3. Trailer Brakes
  4. Electric Drum Brakes
  5. Brake Assembly
  6. 12 x 2 Inch Drum
Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs

Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs

Item # 23-459
Our Price: $144.75
Accessories and Parts
This item qualifies for Free Shipping
Shipping Weight: 15 lbs
In Stock
Accessories and Parts 23-459 - 6000 lbs - Dexter
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

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
12" x 2" Passenger's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has a 5-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fits 14-1/2" to 16-1/2" wheels. 1-800-940-8924 to order Dexter accessories and parts part number 23-459 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (2102)
  • Q & A (0)
  • Photos
  • Why etrailer?

Dexter Accessories and Parts - 23-459

  • Trailer Brakes
  • Electric Drum Brakes
  • Brake Assembly
  • 12 x 2 Inch Drum
  • Dexter
  • RH
  • Self Adjust
  • 6000 lbs

12" x 2" Passenger's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has a 5-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fits 14-1/2" to 16-1/2" 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
  • 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
  • Mounting bolts sold separately
  • Made in the USA


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

K23-459-00 Dexter 12" Nev-R-Adjust Electric Brake Assembly for 6K Axles - RH

Replaces 23459 and 23-459

Customer Satisfaction Score:

Customer Reviews

Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs - 23-459

Average Customer Rating:  4.8 out of 5 stars   (2101 Customer Reviews)

12" x 2" Passenger's-side electric trailer brake assembly fits 6,000-lb axles. Mounting flange has a 5-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fits 14-1/2" to 16-1/2" wheels.


I ordered a Dexter Nev-R-Adjust electric brake assembly. Easy purchase. Great shipping. Super simple part to in install. If I need trailer parts again, I'll definitely return for more this great service and excellent parts.


This was a replacement for a Dexter brake that was on a 4 year old Airstream that had less than 9000 miles on it and proved to be defective. Dexter wouldn’t honor the 5-year warranty since I was the original owner. Service from etrailer was great but I wouldn’t select another Dexter product if there were other options.


Actual Dexter brake assembly. Easy to order. Multiple delivery options very helpful as I wanted the parts ASAP. Have never been dissapointed dealing with etrailer. Great customer service.


Quick shipment, super easy to install. Remove 5 bolts, cut the wires and the old one comes off. Tighten 5 bolts, reconnect the wires and put the drum back on.

Brakes are still working great, no issues!! Don’t forget to re-torque the wheels after a few hundred miles.
Steve - 08/17/2022


Did a remove and replace. Original Dexter Brake assemblies had curved wear and missing the brake adjusting plugs, getting dust and no doubt water in them from the Airstream plant in Jackson Center, OH. All EIGHT of eight wheels had them missing.

That was my Problem. Now the Cure:

etrailer had two Brake Assembly kits at my door three days after ordering. I installed them today and they work and had supplied five fresh locking bolts and the two plastic brake adjusting plugs.

I am one happy Airstream trailer camper. First time doing brakes on a trailer and it was much easier doing the complete assembly. Will break them in as suggested in their installation instructions.

I recommended on the that Airstream owners follow for information. One member already said he ordered parts, as he did not know how to find what he needed.

Excellent service ordering from my computer. Notice of parts being shipped was emailed to me. Parts were dropped off at my doorstop. If the carton had some glazed doughnuts included... it would have been 5% better.

George J.... you did me right as a first time customer.


Perfect replacement for my 24ft Hallmark trailer. Very easy to install, just bolt on and connect the wires. With the automatic adjustment there is nothing else to do! I recommend putting some extra anti-seize to be on the safe side (I had similar brakes seize up after a big winter in the North East). Also you will need 2 plugs per assembly to cover the adjustment holes (the brakes don't come with any plug and have 2 holes!)


Easy install, much better than fighting with brake components.


Fast delivery, product fit perfectly and was just as discribed. Purchased 6 never adjust Assy's for 6000 lb axles. Much easier than replacing part by part.

Still working great with no issues
Mike B - 12/19/2017


We put these never adjust brakes on after we removed the manual adjust brakes from our Cargo Trailer converted to a RV. We then installed the never adjust electric brakes and broke them in according to the instructions. We then started and completed a 19,400 mile trip from Florida to California then to Washington then to the UP of Michigan then to the Adirondack Mountains of NY and then back to Florida. We never had a problem with the brakes. We visited 17 National Parks, 7 state parks and numerous national forests. Great trip with no problems.


Easy online ordering Great emailing updates as far as the status of the shipmand and after it's been received


Excellent product and fast shipping from etrailer!


These went on very easy, and worked great right out of the box. It was nice to have them all match. I spliced them in a couple days before going on a 1,000+ mile vacation to Arizona. They've worked flawlessly (I check them to make sure they aren't hung up). This was just one headache eliminated for the trip by just getting new brakes instead of messing around with junky old ones. We've had the toyhauler out on several other trips also. I will purchase again if I need any for another trailer.

The brakes have been working great. After the initial installment and adjustment, I havent had to do any additional work to any of them. They are performing great, really better than I expected. I always test them with my brake controller when I first get back on the road and they have always worked. I have recd a few of my friends to buy any parts they need from your website as it was easy and had lots of options trailer stores around here are pretty limited.
J.D. - 02/12/2018


The new brake works great and the install was simple, even for me - I usually call my brother for all things vehicle related.


New brake assemblies were easier to install than just shoes and price was not much more than shoes. Excellent quality. Work better than originals.


I purchased the 12" auto adjust brake set for my trailer. They arrived in a timely manner and installation was VERY easy. 5 bolts and 2 wire connections and one unit done.

They worked as they should from the first use. I only took it around the block to make sure they worked as they should and they worked just fine.

If you need to replace your brakes I would look at these as they make it A LOT easier than just replacing the shoes although a bit more expensive, but then again everything on the backing plate is new and won't need to be replaced for a long time down the road.

I am real happy with them! I have an older double axel 29ft toy hauler thatonly 2 of the 4 brakes were working. So after installing the new brakesneedless to say it stops like it should!Im very happy with them and glad that they worked like they were supposedto!If I need parts again I check your site to see if you have it and go fromthere.Thanks again!
Mike M - 06/27/2014


I bought these for my 30' fifth wheel trailer. The product arrived quickly from Appears to be well made with quality components made in the USA. I have only completed one side so, I can not write about performance however, from my initial impression these will work fine.

Its been a year since the install and I am happy to say all is well. One thing to note about these brakes is you must adjust them initially!. It will take a very long time to adjust them if you dont do the initial adjustment. The paint has not chipped nor do I see any signs of rust.
Great p - 08/31/2016


Great customer service and fast shipping


Great availability and product. Fast sh ipping.


So far so good. Instulation was easy and straight forward. Haven't had a chance to try them yet.


Wanted to wait until after our most recent trip with our trailer before giving you the one year follow-up. Just pulled the trailer almost 1000 miles in the Rocky Mountains. The Nev-R-Adjust brakes & drums worked great and I felt very confident in their performance. I really appreciate not having to crawl under the trailer to adjust the brakes. All are good products and I would recommend them to all.


Outstanding customer service and very fast shipping.


I purchased 4 of the 12" Nev-R-Adjust brake assemblies for my Cardinal becuse I have been having some squeaky and binding brake issues with the old ones. I was surprised at how quickly I received them. They are easy to install; just undo the old wiring, remove the five bolts holding the backing plate brake assembly and put the new ones on. These are a bit more expensive than replacing just the shoes but ALOT easier and more dependable. Unfortunately I have not had a chance to test drive the rig to see if this corrected the problem.
But take note that the two little rubber covers on the backing plate by the star wheel are not included. These must be ordered seperately.


These Dexter fit the Lippert axles perfectly. I HAVE NOT road tested them yet, but wanted to leave a review regardless mainly because etrailer asked me to. These brakes are a good value, really, but they are packaged poorly in a large box with only some brown paper. They are pretty heavy and that means lots of banging going on in delivery. One of the pads had a chip missing and 2 were unassembled--cable and star wheel dislodged. I contacted etrailer and they sent me 2 new ones and emailed me a return label. All said, it was an inconvenience, but the price can't be beat. Again, performance has yet to be determined, but I'm obviously all in as they are mounted.


Great product and price. Can't be beat. I checked all over. Amy handled my phone order and questions like the Pro she is. Great job. Brakes fit perfectly the first time. Couldn't have been simpler. Make sure you order the dust plugs for the backing plates. You need two each and your old ones won't fit. Conversion to Nev-r-Adjust couldn't be simpler. 30 mins. and the job was done. Thanks Amy and E-Trailer!


The conversion from Hydraulic to electric brakes was TOO easy. Totally completed 4 wheel overhaul (bearing kit BK3-110) and brake conversion (including wiring) in just over 3 hours. On the road and working AWESOME. Only item that threw me (not a big deal) the cotter pin in BK3-110 was too small for the spindle and nut. Had some the right size in the shop so no worries.

Show More Reviews

See what our Experts say about this Dexter Accessories and Parts

  • How To Find Right Replacement Brake Assemblies For 2012 Keystone RV
    To pick out the correct brake assemblies for your trailer you need to know a few things. You will want to measure the inner diameter of your hub/drums and the depth of the drums to determine what brake assembly dimensions you need. I have attached a photo of a drum that shows where you need to measure. You also want to determine what the bolt pattern is of your assembly mounting flange. I have attached a helpful article that explains how to determine the bolt pattern you have.
    view full answer...
    Image 1 for
  • Differences Between Dexter and Tekonsha Electric Trailer Brakes
    The Dexter and Tekonsha electric trailer brakes we offer are both usable on the same trailers provided that they are the correct drum size, have the correct mounting bolt pattern and are rated appropriately for the trailer's axles. In our customers' experience there is little functional difference between these two quality brands. Never-Adjust brakes of course offer the convenience of not having to manually adjust spring/pad tension and will tend to help keep tow vehicle and trailer brakes'...
    view full answer...
  • Determining the Correct Replacement Brake Assemblies for 1996 Airstream Excella
    To determine what size brake assemblies you have you can measure the diameter of the mounted brake shoes on the trailer or measure the inside diameter of the brake drum. I am including pictures of where to measure on the brake assembly and the brake drum. You will also want to measure the width of the brake shoe lining to get the correct width brake assembly. You will want to get the bolt pattern of the brake mounting flange on your axle and if it is a 4-bolt flange or a 5-bolt flange....
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • How to Determine the Correct Electric Trailer Brakes for a Trailer with 8-Lug Wheels
    Considering that you have 8 lug hubs you will likely need 12 inch brakes but they could also be 12-1/4 inch brakes. It all depends on the axle capacity. To determine which brakes will fit I will need to know the inner and outer bearing numbers stamped into the bearings. If the trailer already have hub and drum assemblies then you can measure the inner diameter of a drum and the width where the pads on the shoes makes contact. I have included a couple of pictures that should help. Also,...
    view full answer...
    Image 1 for Image 2 for
  • Troubleshooting And Adjusting Electric Brakes On Trailer
    The testing procedure for brake magnets in the attached help article is for testing the entire system, and also further testing for each individual magnet. The first part of the help article is for testing the system. If you should have a reading that is too high or too low you would then start testing the individual magnets on a bench test. The first chart in the help article shows that the max amps at 12 to 13 volts for 2 brakes as you said you tested should be between 7.5 and 8.2 volts....
    view full answer...
  • Electric Trailer Brakes Work in Reverse But Not Going Forward
    You may have switched the left and right sides by accident when you installed the new brakes. this would not change how the magnets power up but for trailer brake assemblies there is a left and a right and switch them can negatively affect braking. The magnet actuator arm should point towards the front of the trailer. So for # 23-459 as an example based on placement of the brake assembly that has the magnet arm pointed forward you can tell this is a right hand assembly. If you do have...
    view full answer...
    Image 1 for
  • Where do the Wires of a Trailer Brake Assembly Run To
    There are two wires on trailer brake assemblies like part # 23-459. One will be the ground and the other will be for power for the assemblies from the brake output circuit. It does not matter which wire is which since they can be reversed. I attached an install video that should help you if you are still confused.
    view full answer...
  • Bolt Torque Specification for Mounting a 12 Inch Brake Assembly
    According to Dexter Axle, the attachment bolts for a 12 x 2 brake assembly should be torqued to 25-50 foot/lbs. If you don't have a torque wrench handy, if you tighten the bolts until the lock washers flatten out, you'll be pretty darn close to that range.
    view full answer...
  • New Nev-R-Adjust Brakes Seem Weaker than Old Brakes on 5th Wheel Trailer
    Nev-R-Adjust brakes such as # 23-459 do require an initial adjustment. If you made that initial adjustment you should be able to hear a slight but constant drag of the brake pads on the drum when the wheel is turned. If you do not hear that then they will need to be adjusted out more or they will eventually adjust out themselves. Driving forward is all you would have to do to get them to adjust themselves but it can take a while without the proper initial adjustment. You may also need...
    view full answer...
  • How to Determine Axle Capacity of a Triple Axle Trailer
    The number you listed for your brake assemblies doesn't cross reference with anything, but there should still be a way for you to determine what your axle capacities is. First place I would check is the plate near the coupler of the trailer that will have the VIN listed. The axle capacities and overall capacities of the trailer should be listed there. You can also determine the axle capacities by measuring their diameter. Typical Axle Diameters Based on Axle Capacity - 1,000-lb -...
    view full answer...
  • Availability of Dexter Brake Assembly 023-459-00
    We have what you are looking for. On our site the part number is part # 23-459.
    view full answer...
  • 12 x 2 Inch Electric Brake Assemblies for Lippert 5200lb Axles with Axletek 12 x 2 Inch Drums
    If the 5-bolt mounting flange holes are 2 inches apart on center at the top holes and 3 inches on center for the bottom 2 holes then you can use Dexter brake assembly # 23-459 as a replacement 12 x 2 inch electric brake assembly.
    view full answer...
    Image 1 for
  • Where to Start for Adding Electric Brakes to a Trailer
    If you check out the link I attached you will see a guide that covers everything needed to add electric brakes to a trailer. It's a fairly straightforward process, but before I can recommend you any parts you will need to know what spindles you have on your trailer so that we can pick out the correct replacement hub/drums. Basically everything builds off of what hubs will fit your spindles so I cannot recommend anything until we know what you would need for hubs.
    view full answer...
  • Difficulty Adjusting Nev-R-Adjust Trailer Brakes
    The adjustment wheel that you are using to tighten the brakes just needs to be turned the other way. The adjustment wheel just pushes out the spread of the shoes or takes them back in if turned the other way. Nev-R-Adjust brakes like # 23-459 work the same way as regular brakes except they have a cable in them that works to push the shoes out automatically. Otherwise they can be adjusted just the same as regular brakes. However, on a Nev-R-Adjust accessing the teeth on the adjustment...
    view full answer...
  • Troubleshooting Weak Trailer Braking After Replacing Axles
    If the brakes are self adjusting I'd recommend finding an area like a parking lot where you can slide the override lever of the controller several times while at a slow speed to allow them to adjust to where they need to be. You should feel them get slightly stronger with every application. If they are manual adjust I would try tightening them down a couple more clicks so that the drag you feel as you turn the wheel is a little tighter. You might also check to make sure the ground wires...
    view full answer...
  • Troubleshooting Trailer Hub That Gets Hotter Than Other Hubs and Adjustment is Good
    It's possible the castle nut that holds the hub to the spindle is too tight which is creating too much friction as the wheel turns, or it's also possible that the hub doesn't have enough grease in it. The castle nut on the hub is only supposed to be tight enough that it holds the hub onto the spindle and the cotter pin is what prevents it from backing off. You might check to see how difficult it would be to remove that nut as it should turn pretty easily. If it's on there loose enough...
    view full answer...
  • Do Trailer Brake Assemblies Need to be Loosened to Allow Drum to Remove
    You shouldn't have to back off the brake tightness on a trailer drum brake to slide the hub/drum off. There should be enough clearance to allow the hub to still turn by hand as well as allow the drum to slide off of the brake assembly.
    view full answer...
  • Grounding Dexter Self-Adjusting Brakes To Trailer Frame
    You want to ground whichever wire you use from the magnet as a ground now to a clean bare metal surface of the frame on all of the assemblies. Trailer brake magnets are not polarity sensitive so it doesn't matter which wire but since you already have your trailer brakes wired, just make sure you don't cut the power wire instead. You also want to make sure the main trailer ground is properly grounded to a clean bare metal surface.
    view full answer...
  • Which Axle Should Electric Brakes be Put on Tandem Axle Trailer?
    Ideally you want to have brakes on each axle. However, oftentimes brakes are put on the forward axle as it will usually carry more of the trailer's weight so that is typically what is recommended but the best solution is going to be brakes on both axles. In order to choose the optimal brake assemblies you'll need to find the correct fit. To do this you need to know your axle's weight capacity, the size of your wheels, your mounting flange bolt pattern and the inside diameter and depth...
    view full answer...
  • What Brake Thickness Should Dexter 5,200 lb Trailer Brake Assemblies be Replaced At
    On 5,200 lb Dexter brake assemblies you'd want to replace the brake pads when they have gotten thinner than 1/16 of an inch. So since you are at 1/4 of an inch yours are still fine.
    view full answer...
  • Troubleshooting Trailer Brakes That Lock Up In Reverse
    That's a pretty strange situation. My first suspect would be a corroded connector on your trailer. It's possible that corrosion has built up on the inside of the trailer connector causing the center pin that gets voltage when the transmission is in reverse to 'bridge' to the brake output circuit causing the brakes to actuate. The fact that you're only having problems with the vehicle in reverse would lend some credence to this theory. I'd check the center pin on the trailer's 7-way connector....
    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...
  • 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...
  • Will the Dexter Nev-R-Adjust Brake Assembly # 23-458 Replace the Dexter Brake Assembly # 023-466-00
    The Dexter Brake Assembly, # 023-466-00, that you currently have is basically the same brake assembly as the Dexter Nev-R-Adjust Brake Assembly, # 23-458. They are both 12 x 2 Nev-R-Adjust electric brake assemblies for 6,000-lb axles. If you would like a right hand assembly as well, you can use part # 23-459. The only difference between these two brake assemblies is that the Dexter Brake Assembly, # 23-458, has not been certified by the Canadian Standards Association (CSA).
    view full answer...
    Image 1 for

< Previous
123. . .6

Do you have a question about this Accessories and Part?

  • Why

    At we guarantee:
  • 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:

Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Reno H
Expert Research:
Reno H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Chris R
Video Edited:
Chris R
Employee Jeff D
Installed by:
Jeff D
Employee David F
Installed by:
David F
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

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.