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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: $150.95
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Shipping Weight: 15 lbs
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Accessories and Parts 23-459 - 6000 lbs - Dexter
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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.
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Dexter Accessories and Parts - 23-459

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

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   (2353 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.


Exact replacement for the airstream 12x 2 brake assembly. Service and delivery were excellent.


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!)


This part was an exact fit replacement. It has worked perfectly


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.

Mike B.


Still working great with no issues


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.


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.


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


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.


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.

Mike M.


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!


Great product great price


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.


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.


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.


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.

Great J.


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.


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.



Etrailer Expert

Brooke M.


Two lefts make a right, so they just sent four rights - perfect, just what you needed! Joking aside, I am sorry your order was messed up. I will make sure our customer service team gets in touch with you about getting the correct parts sent.


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.


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.


When I was looking for brake pads for our fifth wheel these came up as a very pleasant surprise. I had never seen these full brake assemblies before.

I had not done mechanical work for a good many years and these were perfect. All you have to do is undo five nuts, exchange old assembly for new and replace the nuts. You also have to splice the two wires for the electric brakes and you should be sure to use a heat shrink sleeve to keep the connection from corroding. BTW, you don't have to worry about polarity with the wires.

In short it takes longer to dismount the tire and hub than it does to change these out. Great.

Regrettably, I forgot to take pics but these make for a very clean job.


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.


Bought a used skid steer trailer that needed all new bearings and electric brakes. It was easy to find the correct bearing kit on etrailer and installation videos on the site made it a breeze for a DIY'er.


I replaced all 4 brake assemblies on my fifth wheel with the never adjust. The brakes arrived in a timely (actually, quite fast) manner. Installation was quite easy - just five bolts and 2 wires per brake assembly. Much easier than trying to rebuild my originals with new shoes and magnets.


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!


Ordered both the left and right side brake assemblies. Delivered on time (actually one day earlier than expected). Put on equipment trailer the following Friday and installation of the new brakes was relatively easy although it does require 2 people; one holding a wrench on the bolt while the other tightens the nuts. Don't even consider reusing the old bolts and nuts; for the price get new ones and you will make your life a lot easier. Took trailer for a test run after installation and everything works great.

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See what our Experts say about this Dexter Accessories and Parts

  • 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...
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  • 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.
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  • 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...
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  • 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....
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  • 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.
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    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.
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  • 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,...
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  • 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....
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  • Troubleshooting Trailer Hub That Gets Hotter Than Other Hubs and Adjustment is Good
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    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.
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  • 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...
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  • 12 x 2 Inch Electric Brake Assemblies for Lippert 5200lb Axles with Axletek 12 x 2 Inch Drums
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  • 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...
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  • 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.
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  • 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 -...
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  • 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...
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  • 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...
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  • Troubleshooting Weak Trailer Braking After Replacing Axles
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  • 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.
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  • 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....
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    Image 1 for Image 2 for Image 3 for
  • Troubleshooting Trailer Brakes that Only Work in Reverse
    That's an interesting problem to have but it could be that your trailer's brake assemblies are on the wrong sides of the trailer. Brake assemblies are directional and if they are installed on the wrong side they won't activate going forward. To check this you would need to pull off the wheel and hub to look at the inside of the brake assembly. The bracket that holds the magnet would need to be on the side of the spindle that faces the front of the trailer.
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  • 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.
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  • Can I Replace my Manual Brake Assembly with the Dexter Nev-R-Adjust Brake Assembly
    You will be able to use the Dexter Nev-R-Adjust Electric Assembly for 6,000 lbs. Axles # 23-459 for your trailer even though your axle is rated for 5,200 lbs. However, you are limited by the 5,200 lbs. capacity of your axles and cannot load 6,000 lbs. in your trailer because you installed this brake assembly. I do not recommend installing brake assemblies with two different ratings on your vehicle. While your trailer brakes will work, the Dexter manual adjust assembly # 23-181 rated for...
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  • What is Needed to Replace Hydraulic Trailer Brakes with Electric Trailer Brakes
    The angle of the mounting flange should not be an issue as long as you are using the right hand side brake on the right side of the trailer and the left hand assembly on the left side. Assembly # 23-458 is a left hand side and the matching right hand side is # 23-459. I am not sure exactly what kind of video you are looking for but if it is one on converting hydraulic to electric drum brakes we haven't had the opportunity to perform that particular installation and film it yet. But we...
    view full answer...

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