bing tracking image
  1. Accessories and Parts
  2. Dexter
  3. Trailer Brakes
  4. Electric Drum Brakes
  5. Brake Assembly
  6. 10 x 2-1/4 Inch Drum
Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 4,400 lbs

Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 4,400 lbs

Item # K23-478-00
Our Price: $238.02
Accessories and Parts
Add to cart
In Stock
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
Driver's-side electric trailer brake assembly measures 10" x 2-1/4" and fits 4,400-lb axles. Mounting flange has 4-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fits 13" to 15" wheels. 1-800-940-8924 to order Dexter accessories and parts part number K23-478-00 or order online at etrailer.com. Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 4,400 lbs. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (2451)
  • Q & A (0)
  • Photos

Dexter Accessories and Parts - K23-478-00

  • Trailer Brakes
  • Electric Drum Brakes
  • Brake Assembly
  • Dexter
  • 10 x 2-1/4 Inch Drum
  • LH
  • 4400 lbs
  • Self Adjust

Driver's-side electric trailer brake assembly measures 10" x 2-1/4" and fits 4,400-lb axles. Mounting flange has 4-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fits 13" to 15" wheels.


Features:

  • 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 and hardware included
  • Made in the USA


Specs:

  • Application: most standard hub-and-drum assemblies, including Dexter
    • Does not work with Lippert 4,400-lb axles due to clearance issues with the brake mounting flange
  • Configuration: left hand (driver's side)
  • Dimensions: 10" diameter x 2-1/4" wide
  • Mounting flange bolt pattern: 4 bolt
    • Measurement from center of top mounting stud to center of top mounting stud: 2-7/8"
    • Measurement from center of bottom mounting stud to center of bottom mounting stud: 3-1/4"
    • Measurement from center of top mounting studs to center of bottom mounting studs: 3"
  • Wheel size: 13", 14", and 15"
  • Axle rating: 4,400 lbs
  • Limited 5-year warranty


Mounting stud location measurements


K23-478-00 10" Dexter Axle Nev-R-Adjust Electric Brake Assembly - 4.4K - LH

Replaces 182765





Customer Satisfaction Score:


Customer Reviews

Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 4,400 lbs - K23-478-00

Average Customer Rating:  4.8 out of 5 stars   (2451 Customer Reviews)

Driver's-side electric trailer brake assembly measures 10" x 2-1/4" and fits 4,400-lb axles. Mounting flange has 4-bolt pattern. Nev-R-Adjust brakes require little maintenance. Fits 13" to 15" wheels.

by:

Fast delivery, Rochelle was fantastic!



by:

I am happy to say that my Dexter Nev-R-Adjust Electric Trailer Brake Assembly is working great. I especially appreciate how easy the installation was. My originals got really fried and left me with no trailer brakes going over the mountains.



by:

Thanks to everyone that helped get the correct breaks for my 1905 Roockwood Mimi light. They are installed now. Just need to be broke in.

Robert

10/26/2021

I have had new brakes on my rockwood mini light for a year now. I have about 10,000 miles on them and they are still working like new. I could not be happier with them.



by:

Great service by Terri and etrailers. Terri confirmed that I was ordering the correct item and that it would arrive overnight in Traverse City, MI as needed. Thanks for all your help.



by:

EXACTLY WHAT WE NEEDED. THANKS E-TRAILER



by:

The parts are direct replacements that fit perfect. Swapping them out was easy. Will come back to buy more supplies in the future. The delivery system also was timely and with no damage to parts.



by:

Ordered on Tuesday afternoon and received on Thursday at noon. Great costumer service. Brittney was very knowledgeable and helpful.



by:

Quinn was awesome to deal with.



by:

Awesome service. Parts were delivered in 2 business days. Right parts and easy to install. I would recommend eTrailer. Notified by email when parts shipped and received.

Ron

7/31/2022

great no issues



by:

The dexter Nev -r-adjust electric trailer brake assembly had to be replaced after 3ooo miles ..a piece of junk.



by:

Genuine Dexter parts at very reasonable prices with free shipping at certain $$$ levels. Excellent part discriptions with accurate & precise pictures. Quick shipping, excellent refund policy just be sure to keep original packaging until sure about part being correct. etrailer is my 1st choice for parts for my trailers or towing accessories.



by:

Works as expected, easy to install. The assemblies should be packed better. Some of the parts were damaged because the heavy drums bounced around and damaged it.

Etrailer Expert

Thomas M.

12/30/2021

I will have Customer Service reach out to you.



by:

I was impressed with the online site and the ease in locating the product I needed, both the ordering and the delivery went smoothly, the instructions were clear and the installment went without a hitch. Ready to get the trailer back on the road again, Thx



by:

I called an order in for one of our customers who needed a brake assembly ASAP. I had to have it overnighted. I got it the next morning, and it was exactly what we needed. I have ordered from Etrailer many times and have ALWAYS had prompt, courteous, and professional service. I recommend them highly and of course I will continue to order from them in the future! Thanks to everyone at Etrailer! Dana Danson, Parts Coordinator at Camping World



by:

I called an order in for one of our customers who needed a brake assembly ASAP. I had to have it overnighted. I got it the next morning, and it was exactly what we needed. I have ordered from Etrailer many times and have ALWAYS had prompt, courteous, and professional service. I recommend them highly and of course I will continue to order from them in the future! Thanks to everyone at Etrailer! Dana Danson, Parts Coordinator at Camping World



by:

Received product today and it was packed in a very protective, sturdy container. There was excellent communication with Etrailer during the procurement process. I won't be unpacking the items for a bit but I'm very confident everything will be OK. You know, that gut feeling kind of thing. Thank you Etrailer.



by:

Received exactly what I ordered in a very timely manner. Products were packed very well for shipping. Excellent service and great communication from the initial order all the way through to the final delivery. These folks know how to do business right and are great to do business with! Purchased these to have on hand to replace RV brakes when traveling. Had 2 brake sets break on our last trip and it cost us a lot of down time.



by:

He trailer had the hard to get part that I was unable to obtain locally. I initially gave them an undeliverable address and they contacted me right away to get a better shipping address. Shipping was quite prompt.



by:

Broke down on the side of the road. Manufactured told me $1,000 and two weeks for this part. A trailer had it overnighted, for a third of the cost !!!



by:

Excellent service and quick shipping - using entire assemblies made the job easier and quicker than replacing parts!



by:

Can’t say enough nice things about the understanding and help I received after ordering the wrong brake assembly. In just a few minutes on the phone I had a return label and the correct part on its way. Excellent teamwork etrailer.



by:

I’m very happy with the service from etrailer
Parts got here on time and were correct



by:

Quick shipping and excellent customer support. Brake assembly arrived in good shape as advertised.



by:

We didn't get these parts ordered until after 3 pm and yet we still received them the very next morning. Great Job!! Our customer was in a bind, and thanks to you we have a happy customer.



by:

Product info made it easy to choose the correct part and very fast delivery. We're back in business!


25
2295
Show More Reviews

See what our Experts say about this Dexter Accessories and Parts

  • Will 10 Gauge Wire Fit Inside Axle Tubes For Powering Brake Assemblies?
    Yes, you can use 10 Gauge Wire # 10-1-1 to route through your axles to power your Electric Brakes # K23-478-00 Do be sure the Grommet # 046-124-00 is in place on your axle tube to prevent the wire from fraying entering the axle tube.
    view full answer...
  • Brake Assembly Replacement Recommendation for Dexter Assemblies 36-19-47
    Based on what you described you have a standard 4-bolt trailer brake assembly bolt pattern. For brake assemblies that match that and the 4,400 lb axle capacity you have you'd want the part # K23-478-00 for the left hand side and part # K23-479-00 for the right hand side. For a brake flange you'd then want the part # 4-35 if you were also in need of that.
    view full answer...
    Image 1 for
  • Nev-R-Adjust Brake Assemblies for a 4400 lb Dexter Axle
    There are a few differences between the Dexter 3,500 lb brake assemblies and the 4,400 lb brake assemblies including the brake shoes, magnets, adjusters and adjuster springs. Because the 4,400 lb brake assemblies must be able to provide more stopping power than the 3,500 lb brake assemblies they will have upgraded components. The 4,400 lb brake assemblies also have a different bolt hole pattern on the backing plate to mount to the brake mounting flange on the axle than the 3,500 lb brake...
    view full answer...
  • Parts Needed to Replace Hydraulic Drum Trailer Brakes with Electric Drum Trailer Brakes
    The 10x2-3/4 measurement on brakes is in reference to what drums they fit, not the mounting pattern. The 2-3/4 inch measurement you are getting is indicative of 10x2-1/4 inch brakes like # K23-478-00 that you have referenced. To measure for the size brake assembly you need you will measure the inner diameter of the drum and the width (both where the shoes/linings make contact with the drum). The matching right hand side brake assembly is # K23-479-00. But if you have 3,500 pound axles...
    view full answer...
  • Do I Have to Replace My Dexter Brakes With Dexter Brakes
    If you really liked the Dexter brakes and want to continue to use that brand I can help you find exactly what you are looking for. Otherwise, no, you do not have to replace the electric brakes on your trailer with the same Dexter brand. The Nev-R-Adjust Electric Brake Assemblies, part # K23-478-00 LH (driver side) and part # K23-479-00 RH (passenger side), from Dexter that you referenced are great options since you do not have to keep adjusting the brakes. These assemblies are 10 inches...
    view full answer...
  • Picking Out Trailer Brake Assemblies that Have Bolt Pattern 2-7/8 inch by 2-7/8 inch
    The 2-7/8 inch square bolt pattern that you need is a very common bolt pattern for 4-bolt brake assemblies that are 10 inch in diameter. The # 23-454 that you referenced uses a smaller bolt pattern at 2-13/16 inch by 2-13/16 inch which was common for brake assemblies made before 2009. The # K23-478-00 that you also referenced does not use a square bolt pattern at all so what you'd really be in need of is # 23-27 for the right hand side and # 23-26 for the left hand side.
    view full answer...
    Image 1 for
  • How to Determine Axle Capacity of Keystone Cougar High Country 5th Wheel
    The D44 on your axle tells me that you have a Dexter D44 axle, which has a 4400 lb capacity. Given that, and the length of the leaf spring you provided, the etrailer # e28SR would make for a good replacement spring. Increasing the capacity of your springs won't increase the weight bearing capability of your trailer. You'll still be limited by the axle capacity, the capacity of the tires, hubs, wheels, etc.
    view full answer...
  • Brake Assembly Recommendation for a Dexter 4,400 lb Axle with 10 inch Assemblies
    By the time you add up the cost to replace the magnets and shoes on your trailer you are at the cost (or more) for all new assemblies plus you end up saving yourself the trouble of messing with trying to install all the components. For an exact replacement for the assemblies of your trailer you would want the part # K23-478-00 for the left hand side and part # K23-479-00 for the right hand side. Replacement parts for these assemblies are even harder to find than normal assemblies due...
    view full answer...
  • Can Self-Adjusting Brake Shoes Be Used On Manual-Adjusting Dexter Brake Assembly?
    I do not recommend using the self adjusting brake pads for your manual adjust brake assembly as they are not designed to be used together. If you want the self adjusting setup then you will want to go with Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 4,400 lbs # K23-478-00 and Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Right Hand - 4,400 lbs # K23-479-00. If you want to keep you current Dexter Electric Brake Assembly 10" - Right Hand # K23-463-00...
    view full answer...
  • Never Adjust Dexter Brake Assemblies to Replace Dexter 023-454-00 and 023-455-00 Assemblies
    The Dexter Nev-R-Adjust Electric Trailer Brake Assembly equivalent to your current assemblies is part # K23-478-00 for the left and part # K23-479-00 for the right side.
    view full answer...
  • Replacement 10x2-1/4 Inch Electric Trailer Brakes
    The mounting studs on trailer brake assembly # K23-478-00 are 7/16 inch requiring the 7/16 inch nut # 6-17. You would also want to use lock washer # 5-8. This is a standard size for 10x2-1/4 inch brakes. The outer diameter of the nuts is larger of course so it is not surprising that the wrench you used was larger.
    view full answer...
  • Replacement Trailer Brake Magnet for Dexter Electric Brake Assemblies
    Yes, it will! The Replacement Trailer Brake Magnet for Dexter Electric Brake Assemblies item # BP01-225 works with 4,400 lbs Dexter Nev-R-Adjust Electric Trailer Brake Assemblies like item # K23-478-00 or item # K23-479-00.
    view full answer...
  • What Is The Axle Capacity On 35 Ft Camper With 16 Inch Tires And 8 Bolt Rims
    Your KZ 35 ft camper should have a plate or sticker on it that will list the VIN number. The weight rating of the axle should be listed on that plate or sticker. Also, the axle could have a tag or plate on it that will list the weight capacity. If you can locate the VIN, you can call the manufacturer to find out what the axles capacity is on your camper. Another way to determine the weight capacity is by measuring the diameter of the axle. Here is a list that will show the axle weight...
    view full answer...
  • Does the Dexter Nev-R-Adjust Electric Trailer Brake Assembly Kit for 4,400 Lb Axles Come with Hubs
    The Dexter Nev-R-Adjust Electric Trailer Brake Assembly Kit part # K23-478-479 or part # K23-478-00 for left and part # K23-479-00 for right does not come with a hub/drum. If this is needed you can use the Dexter Trailer Hub and Drum Assembly part # 84546UC3-EZ as most 4,400 b axles use 3,500 lb hubs/drums.
    view full answer...
  • Dexter Self-Adjusting Electric Brakes for a Dexter 4400 Pound Trailer Axle
    I have included a picture that shows the mounting pattern for Dexter brake assembly # K23-478-00 so you can compare it to your existing brakes. From what I could find these are the correct brakes for your trailer. The matching right side is # K23-479-00.
    view full answer...
    Image 1 for
  • Availability of Electric Drum Trailer Brakes with 4-Bolt Mounting Flange
    Trailer brakes should be selected based on the axle weight rating to ensure they have the correct stopping power. All of our electric drum brakes that are rated for 5200-lb axles are the 12 x 2-inch size and use a 5-bolt mounting flange. We do have 4-bolt electric brakes in the 10 x 2-1/4-inch size that are rated for 4400- and 3500-lb-rated axles, such as # K23-478-00. You can see all of these on the linked page. Just click on the 4400-lb axle rating to see the left- and right-hand brakes...
    view full answer...
    Image 1 for
  • Replacement 4,400 lb Hub Drum for Trailer Axle
    We do have a replacement hub/drum for a 4,400 lb axle with the part # 8-407-5UC3-EZ which works with the brake assemblies part # K23-478-00 for the left hand side and part # K23-479-00 for the right hand side.
    view full answer...
  • Can I Replace 235/80-16 Tires with 235/85-16 Tires on a Trailer
    It is best to have at least 4-1/2 inches of clearance between your trailer tire's tread and the underside of the trailer/fender. Of this 4-1/2 inches, 3 inches is directly for tire clearance and the additional 1-1/2 inches is for defection of the suspension. Typically, ST235/80-16 size tires have an overall diameter of 30.9 inches. For ST235/85-16 size tires, the overall diameter is increased to 31.6 inches. Moving up a tire size will bring your tire tread approximately 3/8 of an inch...
    view full answer...
  • Electric Brake Assembly Compatibility with T-44 4,400 lb AL-KO Axles
    The AL-KO company was bought out by Dexter, so he may have been thinking Dexter axles which the # K23-478-00 and # K23-479-00 would fit with the 4 bolt mounting pattern. The K23-538-00 and K23-539-00 are the correct ones for the AL-KO T-44 axle, as you mentioned but they have been discontinued. The only option is to replace the axle(s). Depending on the hub face and spring center dimensions of your existing axle and wheel bolt pattern, we may have what you need. I have included a link...
    view full answer...
    Image 1 for
  • Brake Assembly Recommendation for a 2004 Keystone Cougar 285 Camper Trailer
    I did some research on your 2004 Keystone Cougar and it looks like it's a tandem axle trailer with a dry weight of 7,340 lbs. Keystone almost always uses Dexter axles so the correct brake assemblies should be 4,400 lb rated 10 x 2-1/4 inch brake assemblies like the part # K23-478-00 for the left hand side and part # K23-479-00 for the right hand side. Or if you measure the diameter of your assemblies and they are 12 inches you would instead need the part # 23-459 for the right hand side...
    view full answer...
  • Replacement Hub and Drum Assembly for 4,400 lb Trailer Axle
    Yes, the hub and drum kits for a 3,500 lb axle will work just fine with your 4,400 lb axle. The Dexter Nev-R-Adjust Electric Trailer Brake Assembly # K23-478-00 you referenced has a 10" diameter which matches with the 3,500 lb assemblies as well. For your application you can use the Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles # AKHD-545-35-EZ-K. This uses inner bearing L68149, outer bearing L44649, and grease seal 58846 which has a 1.719" inner diameter and a 2.565" outer...
    view full answer...
    Image 1 for
  • New Brake Assemblies for Komfort Travel Trailer 23T24
    If you do have 10 inch brakes, I recommend the etrailer.com 10 Inch Self Adjusting Electric Brake Assembly # AKEBRK-35R-SA, # AKEBRK-35L-SA. The mounting flange has a 4 bolt pattern. These brakes automatically adjust as the brake pads wear so you do not have to manually adjust the brakes. I have attached a review video of these brakes for you. We also offer manual adjust brakes, such as etrailer.com 10 Inch Electric Trailer Brake Assembly # AKEBRK-35R and # AKEBRK-35L. These assemblies...
    view full answer...
  • Wire Gauge for the Dexter Nev-R-Adjust Electric Trailer Brake Assembly
    The wires on the Dexter Nev-R-Adjust Electric Trailer Brake Assembly # K23-478-00 are 12 gauge wires. We recommend using 10 Gauge Wire # 10-1-1 from the trailer 7-Way connector to the brakes though to help ensure enough power gets to them.
    view full answer...
  • Torque Specs of Mounting Flange Bolts on Dexter Nev-R-Adjust Electric Trailer Brakes
    I spoke with a representative of Dexter who told me that the 4 mounting flange bolts on the Dexter Nev-R-Adjust Electric Trailer Brake Assembly # K23-478-00 (left hand) and # K23-479-00 (right hand) who was unable to confirm the specific torque specs of these assemblies. However, based on similar assemblies from Dexter we do know that in the past the recommended torque is between 45-70 foot lbs.
    view full answer...


< Previous
12



Do you have a question about this Accessories and Part?


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 John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jeff D
Installed by:
Jeff D
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

At etrailer.com 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.