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

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

Part Number: K23-478-00
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$233.07
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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.
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  • Reviews (2527)
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Dexter Accessories and Parts - K23-478-00

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

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   (2527 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:

Well I just received my trailer brakeassemblies, and I am impressed with how the package came with no issues. The shipping container was in perfect condition, and the products inside were in excellant shape. I won't be able to do a full review, as I haven't received the Brake drums yet as they are on backorder. I expect they will be in as great condition as the brake assemblies are. Thank you Etrailer. The hitch extension loks great and fits perfect on the back of my camper.



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:

Fast delivery, Rochelle was fantastic!



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:

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:

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



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:

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:

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:

Quinn was awesome to deal with.



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:

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:

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:

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:

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:

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.


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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...
  • Can the Dexter 4.4K Nev-R-Adjust Electric Trailer Brakes Be Purchased Individually
    Yes, the Dexter 4.4K Nev-R-Adjust Electric Trailer Brake Kit part # K23-478-479 can be broken down into the right side part # K23-479-00 and left side part # K23-478-00.
    view full answer...
  • Is There a Difference Between Brake Assembly Kit and Individual Brake Assemblies for 4,400 lb Axle
    There is no difference between buying the brake assemblies individually or as a kit with the Dexter Nev-R-Adjust Electric Trailer Brake Kit - Left and Right Hand Assemblies # K23-478-479. Prices have to do with things like demand, and some people only need individual assemblies, so the prices can be different because technically they are different part numbers. But to get to the heart of your question, you can absolutely order the brakes individually and there is no difference. - Dexter...
    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
  • Replacement Brake Assemblies for AL KO 4,400 Trailer Axle
    For 4,400 AL KO trailer axles the correct replacement brake assemblies are part # K23-478-00 for the left hand side and part # K23-479-00 for the right hand side. It is much easier to just replace the assemblies instead of trying to individually replace all of the components. It often ends up costing about the same as well.
    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
  • Can Electric Trailer Brakes for a 4,400 Pound Axle be Used in Place of Brakes for a 3,500 Pound Axle
    Electric trailer brake assemblies for both 3,500 pound and 4,400 pound axles are 10 x 2-1/4 inches and both have the 4 hole square mounting pattern. So you can use 4,400 pound axles brakes. For the left use # K23-478-00 and for the right use # K23-479-00. These are Nev-R-Adjust assemblies which means after you adjust them the first time you will not have to manually adjust them again.
    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
  • 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...
  • Replacement Brakes, Bearings & Seals for AL-KO 4400-lb Axles on 5-Year-Old Tandem Axle RV
    The # K23-478-00 and # K23-479-00 Dexter brake assemblies you mentioned are not compatible with your AL-KO T-44 axle. According to my contact at Dexter (AL-KO was acquired by them), the replacement brake assemblies for your AL-KO axle are now obsolete as they have been discontinued. The only option is to replace the axles on your RV. Since we don't carry any 4,400 lb axles, the closest rated axle we have (that would also match the 6 on 5-1/2 wheel bolt pattern found on the T-44 hubs)...
    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
  • 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...
  • 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...
  • 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
  • Comparing Dexter and etrailer Self-Adjusting Electric Trailer Brakes
    Brake assembly # K23-478-00 is a Nev-R-Adjust assembly. Like you said it is rated for 4,400 so it has a bigger magnet than a 3,500 pound assembly would have. The etrailer self-adjusting assembly is # AKEBRK-35L-SA rated for 3,500 pounds. One of the biggest differences besides price and capacity is the pad material. On the Dexter assembly the pad material is snapped off of a long strip of the material. On the etrailer assembly the material is actually cut. What happens when it is snapped...
    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...
  • 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...
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  • Replacement Brake Shoes for Roadmaster Tow Dolly
    The Roadmaster Tow Dolly # RM-2050-1 uses the Dexter Nev-R-Adjust Electric Trailer Brake Assembly # K23-479-00 and # K23-478-00. For the replacement brake shoes, you will want the right hand side # K71-699-00 and left hand side # K71-698-00.
    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. Please check the mounting pattern of your current assemblies to the # K23-478-00 for the left and part # K23-479-00 for the right side because these have a very specific mounting flange pattern. I am not able to add the photo right now but if you go to the product pages of K23-478-00 and K23-479-00 you can see the diagram.
    view full answer...
  • 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 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...
  • 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...
  • Nev-R-Adjust Dexter 10 by 2-1/4 inch 4.4k Brake Assembly Recommendations
    We have exactly what you need. The part # K23-478-00 is a left hand Dexter 4.4k Nev-R-Adjust brake assembly that is 10 by 2-1/4 inches. For the right hand side you would need the part # K23-479-00.
    view full answer...


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