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  1. Trailer Brakes
  2. Dexter
  3. Electric Drum Brakes
  4. 4400 lbs Axle
  5. 10 x 2-1/4 Inch Drum
  6. 14 Inch Wheel
  7. 14-1/2 Inch Wheel
  8. 15 Inch Wheel
Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 4.4K
Dexter

Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 4.4K

Part Number: K23-478-479
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$387.28
Trailer Brakes
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Want brake adjustments that go like clockwork? These brakes automatically adjust as you tow so you don't have to crawl around on the ground to do it manually. 10" x 2-1/4" Assemblies fit 14" to 15" wheels. Made in the USA. Great Prices for the best trailer brakes from Dexter. Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 4.4K part number K23-478-479 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Dexter Trailer Brakes - K23-478-479

  • Electric Drum Brakes
  • 4400 lbs Axle
  • 10 x 2-1/4 Inch Drum
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Standard Grade
  • Self Adjust
  • Dexter

Want brake adjustments that go like clockwork? These brakes automatically adjust as you tow so you don't have to crawl around on the ground to do it manually. 10" x 2-1/4" Assemblies fit 14" to 15" wheels. Made in the USA.


Features:

  • Self-adjusting brakes let you maintain optimal braking power at all times
    • Ensures reliable contact between the brake shoes and drums
    • Prevents uneven wear on brake shoes
  • Easier to install and gives you more control than hydraulic brakes
    • Requires only an electric brake controller (sold separately) - no actuator or hydraulic lines needed
  • Long-lasting brake pads offer excellent braking torque
    • Fully bonded to shoes for more consistent braking compared to riveted pads
  • Durable magnets ensure consistent braking power
    • Encased in a stamped steel housing
  • Adjuster plugs (included) protect internal components from dirt, grime, and road debris
  • Left-hand (driver's-side) and right-hand (passenger's-side) brake assemblies included
    • Includes mounting bolts and nuts
  • CSA certification ensures quality
  • Made in the USA


Specs:

  • Application: most standard Dexter hub-and-drum assemblies
    • Does not work with Lippert 4,400-lb axles due to clearance issues with the brake mounting flange
  • Dimensions: 10" diameter x 2-1/4" wide
  • Mounting flange: 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: 14", 14-1/2", and 15"
  • Axle rating: 4,400 lbs
  • Limited 5-year warranty


Quick Tip: There's really not a whole lot to getting new drum brakes. If you've confirmed that all of the specs listed above line up with what you need for your trailer, you can be pretty sure these will work for you.


Self-Adjusting Brakes Don't Require Routine Maintenance

With standard electric brake assemblies, you need to manually adjust them every now and then to make sure you're getting the shortest stopping distance every time you tow.


A trailer drum brake with a red callout shows the location of a tension cable and pulley on a self-adjusting trailer brake.

With self-adjusting brakes, though, you'll always have peak stopping power - simple as that! As the brake pads wear over time, a tensioning cable will automatically keep the pads in alignment so they'll consistently make contact with your drum when you brake. You won't have to do tedious manual adjustments anymore.


Thoroughly Tested for Safety

Dexter invests a lot of resources to ensure that these brakes meet the requirements for certification set by the Canadian Standards Association (CSA). Basically, a CSA certification tells you that these trailer brakes are well built and safe for use on the road.


How to Break In New Brakes

Once you get these brakes installed, you'll need to break them in. First, find a long stretch of road or a big, empty parking lot. Once you're there, set your brake controller to its maximum setting and get moving. Speed up to about 40 mph and brake to slow to about 20 mph. Repeat this 15-30 times. The goal is to get the brake shoes and magnet properly seated into your drum. You'll know you've done that when it feels less jerky (and more consistent) each time you apply the brakes.


Note: The brakes will be very hot after doing this, so after every 10 stops you'll want to wait about 10 minutes to let the brakes cool off before continuing. If you don't, you might cook and crack the pad material.



K23-478-00 Dexter Electric Brake Assembly - LH - Driver Side - 10" x 2-1/4" - Self-Adjusting - 4,400 lbs

K23-479-00 Dexter Electric Brake Assembly - RH - Passenger Side - 10" x 2-1/4" - Self-Adjusting - 4,400 lbs





Customer Satisfaction Score:


Customer Reviews

Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 4.4K - K23-478-479

Average Customer Rating:  4.8 out of 5 stars   (2550 Customer Reviews)

Want brake adjustments that go like clockwork? These brakes automatically adjust as you tow so you don't have to crawl around on the ground to do it manually. 10" x 2-1/4" Assemblies fit 14" to 15" wheels. Made in the USA.

by:

A year later, these exact replacements are still functioning as normal, easy 4 bolt installation and 2 wire connections (per side). Included cap bolts were not same as original and were not used (used original open bolts). Overall, getting my money's worth every time we return home with no trailer brake issues.



by:

Easy installation, just takes time. We just installed these on our 5th wheel camper and drove it to burnish the breaks as instructed to do. We have not driven our camper on a trip yet. We will see how that goes. Will update then.



by:

Great service by E-trailer experts. These breaks fit my odd axle (took a couple of tries, but they made it work).



by:

After doing my homework on what I needed for my Grand Design 230 RL finding the original equiptment replacement parts was essential. After much time on the internet E Trailer had what I needed. I was taken back by the pricing after my search showed some less expensive replacements of the not OE quality. Upon receipt of my purchase I see why the price. Very high quality. Happy me.



by:

Easy to install and have been good reliable brakes for several trips so far. Although, extremely expensive. At over 3 times the cost of the next size down, seemed excessive, but if that’s the size you need you have no choice.



by:

I have the parts in stock fast shipping arrived quickly information kept me updated. Can’t ask for anything more? Excellent establishment to do business. I have bought from them a few times before and I’ve got the same great service.



by:

Bolted right up. Works great.



by:

Excellent company with great service and customer support!



by:

My order was taken courtesly, delivered on time and received as ordered! The Dexter brake assembly was the correct match and installed with minimal effort. I haven't pulled the 5th wheel yet so can't comment on practical use but dealing with etrailer has been seamless. Thanks.

Paul G. profile picture

Paul G.

6/5/2018

Thanks for asking. The brakes are performing well and were a good purchase thru etrailer.com. Your reputation for quality continues to grow.



by:

Great service. Got everything fast and complete. Great product and service.



by:

It took awhile to get the correct part numbers, but when done, the product installed nicely! Highly recommended.

Jon profile picture

Jon

8/3/2023

Excellent. Once we figured out what part numbers I needed, the delivery was quick and the parts fit perfectly.



by:

Exactly what I wanted



by:

I ordered 2 sets of 10" 2 1/4 electric shoes / self adjusting for my Jayco eagle. Received them about 5 days after i ordered them. have installed all but 1 on rear axle. They were very easy to install and wire. tested them today while burnishing them going to another park so far they work well. hope to finish the last on soon. I did replace all bearings and seals on each wheel as i was changing them out.



by:

Delivered swiftly! 2 days. Perfect fit for 2022 Adrenaline 21LT. Hard part to find anywhere in stock. Thank you!



by:

Ordering was quick and easy



by:

Awesome product, great customer service.



by:

had to return the first set as they did not fit, the second set were the correct set. Installed



by:

The parts received were the correct ones. After trying to find them locally and being sold the incorrect parts and then after several days being told they were unavailable, it was a relief to easily find, order and receive the corect parts. Thank you etrailer!



by:

I was in trouble time wise to get my trail brakes fixed. I called Montrell at etrailer...He was extremely helpful to quickly process my order. The brakes came before the time quoted, and they were put on and done quickly. I will always start with etrailer when I need products that you have. Thanks to your company and Montrell.



by:

A bit expensive but it is exactly what we need. Received in 3 days!



by:

parts order process was very easy, and received the order the next day as promised. Lacey G was very helpful and kept me informed.



by:

Very nice quality and easy to use. Highly recommend etrailer products.



by:

Direct replacement. Working as expecte d.



by:

Easy to install. Exactly what I needed for my camper. I called a local camper dealer to inquire about buying them and was told “we do not do brakes”!
So I called you and you fixed me up immediately....Thank you!



by:

The breaks were is to replace. I was able to do it by myself. I have not done a road test yet. Thanks for the fast shipping.


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Show More Reviews

See what our Experts say about this Dexter Trailer Brakes

  • Replacement Hub and Drum Assembly for Lippert 4,400 lb Axle
    The correct hub and drum assembly replacement for your Lippert 4,400 lb axle is the # 8-407-5UC3-EZ. This comes with bearings and a grease seal. If you need brakes as well you can use the # LC66WD, or for self-adjusting brakes # K23-478-479.
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    The correct braking assembly kit for a Dexter 4,000 Lb Axle is the Dexter Electric Trailer Brake Kit part # K23-462-463-00 for manual adjust or Dexter Nev-R-Adjust Electric Trailer Brake Kit part # K23-478-479 for self-adjust. These are almost the same as the brakes for a Dexter 3,500 Lb Axle expect for the magnet size which is much smaller therefore they are weaker and the mounting flange pattern is slightly different. Please note, manual adjust brakes require user adjustments every so...
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  • Replacement Brake Pads for 4,400 lb Nev-R-Adjust Dexter Axle Electric Brakes
    To replace just the brake pads that come on the Dexter Nev-R-Adjust Electric Trailer Brake Kit - 10" - Left and Right Hand Assemblies - 4,400 lbs # K23-478-479 you need the Replacement 10" x 2-1/4" Kit # K71-698-00 for the left-hand side and Kit # K71-699-00 for the right-hand side. I confirmed this with my contact at Dexter Axle Attached is a review video for you to check out.
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    Thanks for reaching out about this! The Dexter Nev-R-Adjust Electric Trailer Brakes # K23-478-479 might need an initial adjustment when they are first installed. What you're looking for is a slight drag from the brake pads when you spin the hub. Once the brake assemblies are properly adjusted, then it's time to break them in on the towing side of things. You'll want to take the towing setup to an empty parking lot and practice braking from about 15-20 mph. Usually, I recommend setting...
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    Those are incorrect but we do have the correct Dexter electric brakes for your 2017 Flying Cloud Airstream, it just depends on the model number you have. So long as your axle has a 4-bolt brake mounting flange you can use the following: - Models 23FB, 25, 25FB, 25FB Twin, 26U, 26U Twin, 27FB, 27FB Twin, 28, 28 Twin: Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-468-469 - Models 19, 19 Bunk, 20, 25 Twin, 30, 30FB, 30FB Bunk, 30 Twin: Dexter Nev-R-Adjust Electric Trailer Brake Kit...
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    Hi Fred; based on the information you provided you need 10" brake assemblies for a 4,400 lb axle. Assuming that axle capacity is correct, you can use the Dexter Nev-R-Adjust Electric Trailer Brakes # K23-478-479. Double check your axle tag to make sure. If you find that you have a 3,500 lb axle you can use the # 23-468-469 instead. Both are 10" x 2-1/4" the only difference is the rating.
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    You are correct, the replacement hub/drum you need is the part # K08-426-91 which comes with bearings and the brake assemblies needed would also be the part # K23-478-479.
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    Thank you for the part number info on the hubs of your 2016 Keystone Cougar Xlite based that we can tell you have a 4,400 lb trailer axle so for a replacement hub you'd want the part # 8-407-5UC3-EZ. Then for brake assemblies you'd want the part # K23-478-479 and you'd be set.
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    The Dexter Nev-R-Adjust Electric Trailer Brake Kit # K23-478-479 are 10" diameter brakes for a 4,400lb axle that uses 4 bolts to mount to the axle. These brakes do have a unique mounting pattern of 2-7/8" bolt center spread on the top mounting bolts, and 3-1/4" bolt center spread on the bottom bolts. They are separated vertically with a 3" bolt center spread. This will fit the 4,400LB Dexter axles under your 2013 Prime Time Tracer 3150BHD. Be sure to get some Deka Heat Shrink Butt Connectors...
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  • Recommended Self Adjusting Brakes for Al-Ko 4,400 lb Axles
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  • Can the Dexter 4.4K Nev-R-Adjust Electric Trailer Brakes Be Purchased Individually
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  • Can You Use a Brake hub Rated For 4400 lbs On A 4000 lb Axle.
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  • Replacement Trailer Brake Assemblies With 4-Bolt Holes Spread 2-7/8" on Top and 3-1/4" on Bottom
    It sounds like you need the Dexter Nev-R-Adjust Electric Trailer Brake Kit # K23-478-479 or Dexter Electric Trailer Brake Kit # K23-462-463-00 for your 5th wheel trailer. These 10" x 2-1/4" brake assemblies are for 4,400lb axles and have a bolt mounting pattern of 2-7/8" on the top bolts, 3-1/4" on the bottom bolts and 3" from the top to the bottom bolts. All measurements are bolt hole center to bolt hole center. The Dexter Nev-R-Adjust Electric Trailer Brake Kit # K23-478-479 is my recommendation...
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  • Recommended Brakes for a 4,400 lbs AL KO Axle
    Yes, you are correct. The Dexter Nev-R-Adjust Electric Trailer Brakes item # K23-478-479 are exactly what you need for AL-KO 4,400 lbs axles.
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  • Replacement Magnets for 10 x 2-1/4" Brakes for 4,400 Pound Axle
    The magnets on the Dexter Electric Trailer Brake Kit - 10" - Left and Right Hand Assemblies - 4,400 lbs # K23-462-463-00 will be rated for 4,400 lbs. The magnets will have the same rating as the brake assembly. I am assuming you need magnets for 10 x 2-1/4" brakes. According to Dexter, the replacement magnet for the # K23-462-463-00 is the # BP01-225 Trailer Brake Magnet for 12" Dexter, 7K. These are the official replacement part for this brake assembly. I have attached a review of the...
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  • How Do I Determine What Electric Brake System Works With My Trailer
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  • Replacement Brakes for Dexter 4,400 Lb Axle with 023-478-00
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  • Adjustable Electric Trailer Brakes for 4,400 lb Axle
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  • 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...
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  • Replacement Brake Assemblies and Grease Seals for Dexter 4400 lb Trailer Axle
    I'm assuming the hubs are used on a 5th wheel, is that correct? For a tandem axle setup, the combined axle capacity would be 8800 lbs. The remainder is carried by the rear axle of the tow vehicle, since the pin weight of a 5th wheel is typically 20% of the GVWR, the axles are properly rated for your RV. For replacement brake assemblies, I'd recommend the # K23-478-479 from Dexter, which includes right and left auto adjusting brake assemblies. After the initial setup, the brakes will constantly...
    view full answer...


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Info for this part was:

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