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Dexter Nev-R-Adjust Electric Trailer Brakes - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K
(1906 reviews)
Price: $557.96
In Stock
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Dexter Nev-R-Adjust Electric Trailer Brakes - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K
Part Number: 23-450-451
In Stock
$557.96
$537.96 after $20.00 Mail-In Rebate 
We'll connect you with nearby partnered installers who know this exact setup.
- All Info
- Reviews (1906)
- Q & A (0)
- Photos
Dexter Trailer Brakes - 23-450-451
Highlights
- No Manual Adjustments Needed: Self-adjusting design keeps brake shoes properly aligned for consistent stopping power.
- Smooth, Reliable Braking: Bonded pads maintain full contact with drums to prevent chatter and lockup.
- Long Pad Life: Fully bonded friction material and tapered edges reduce uneven wear over time.
- Simple Bolt-On Replacement: Fits 7-bolt flanges with 12-1/4" x 3-3/8" drums for 9K–10K axles.
- Even Brake Wear: Fine-tooth star gear ensures accurate shoe-to-drum contact on every stop.
- Durable Construction: Stamped steel housings and strong magnets deliver steady braking torque.
Features to know about
Upgrade Aging Brakes with a Direct-Fit Assembly: 12-1/4" x 3-3/8" Self-Adjusting Design
Old or dragging brakes make towing stressful. The Dexter Nev-R-Adjust electric assemblies take the guesswork out of replacement. Each 12-1/4" x 3-3/8" brake is built for 9,000- to 10,000-lb axles and mounts with a 7-bolt flange for an exact fit on standard hub-and-drum setups. You get both left- and right-hand assemblies ready to bolt on, so you can swap a full axle’s worth of brakes in one go without piecing together parts.
Stay in Control Without Manual Adjustments: Self-Adjusting Mechanism Keeps Braking Power Consistent
With typical electric drum brakes you need to crawl underneath for regular tweaks. These self-adjusting brakes handle that automatically. A built-in tensioning cable keeps the 12-1/4" shoes properly spaced as they wear, maintaining solid contact with the drum and delivering even braking every time you tow. That means no more uneven wear or reduced stopping power between service intervals.
Smooth, Quiet Stops Every Time: Bonded Pads with Tapered Edges
Riveted pads can cause chatter and uneven wear, but Dexter bonds their friction material directly to the shoes for steady torque and better contact across the surface. The tapered edges help prevent chipping and brake stutter, giving smooth engagement instead of a grabby feel. The result is dependable braking that stays consistent mile after mile.
Built Strong for Heavy Loads: Durable Magnets and CSA-Certified Construction
Each assembly uses rugged magnets housed in stamped steel for reliable braking response. CSA certification confirms the assemblies meet strict performance and safety standards. Designed to work with an electric brake controller—no hydraulic lines or actuators required—these brakes deliver heavy-duty stopping power without added maintenance hassles.
Specs
Application
- Application: most standard hub-and-drum assemblies, including etrailer, Dexter, and Lippert (LCI)
Dimensions
- Dimensions: 12-1/4" diameter x 3-3/8" wide
- Mounting flange bolt pattern: 7 bolt
Wheel Compatibility
- Wheel size: 16" or larger
Weight and Capacity
- Axle rating: 9,000 lbs - 10,000 lbs
Warranty
- Limited warranty: 5-year
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.
23-450 Dexter Electric Brake Assembly - LH - Driver Side - 12-1/4" x 3-3/8" - Self-Adjusting - 9,000 lbs to 10,000 lbs
23-451 Dexter Electric Brake Assembly - RH - Passenger Side - 12-1/4" x 3-3/8" - Self-Adjusting - 9,000 lbs to 10,000 lbs
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- etrailer mistake
- Wrong item was ordered
Ratings & Reviews
4.8
1906 reviews
by:
Christian
05/06/2026
Very fast and helpful staff wish they sold more than trailer parts because I would order everything from them thank y’all
by:
Mr. H
09/08/2017
Exact fit for Dexter d1012 axle. Thank you etrailer for your research in knowing what I needed!
by:
William T. Robinson
03/26/2026
Awesome parts, worked flawless.
by:
Albert
10/21/2021
My name is Albert, I recently ordered a set of electronic brakes for my trailer(2 10,000 lbs axles). The product and service was outstanding. Greg was the representative I dealt with he was very patient, helpful and supportive as this process was new to me. As a result of such helpful service the next few days I ordered all new bearings and seals for my axles. I consider the company great to work with in getting you what you need and getting it right the first time
by:
Christopher
05/13/2022
Etrailer was very easy to work with. I changed my order and then changed it back and staff was friendly and helpful everytime I called. Packages were on back order and I was notified of how long and product was here right when they said it would be.
by:
John - Slayden Welding LLC
07/07/2022
Customer service is always spot on! Be aware that this kit does not come with new hardware (bolts & nuts) and it does not come with a backer plate. Make sure you save the old stuff.
by:
Vance
09/17/2019
Fast shipping and great customer service will definitely be ordering my parts through them from now on
by:
Dave
07/19/2023
great service, fast shipping... thank you!!
by:
Earl
09/13/2022
Quinn was Awsome,I had an situation,many thing had to come together,he pulled it off for me,great addition to the etrailer team,thanks again
by:
Mark T
08/17/2022
Didn’t install product yet but e trailer delivered complete trailer order 1 day early and it’s complete will install tomorrow. Thanks e trailer and staff great job
by:
Sid
03/12/2018
AWESOME customer service and fast delivery of products!! Thank you! Will be doing business with you again!!!
by:
Kyle
08/07/2024
Product was exactly what I needed and arrived on time
by:
Delmen
06/10/2022
Perfect fit
by:
Gregg
04/15/2022
Arrived faster than what they said. Great service
by:
Andrey
10/07/2018
exactly what i was looking for came on time
by:
Buster
08/07/2024
Items arrived early and in good condition and was exactly what I needed
by:
Ken
06/01/2021
Perfect fit
by:
Gregory J
07/25/2022
Extremely pleased’n
by:
Curt
10/24/2023
Very responsive and great service.
by:
Cyle
04/22/2026
by:
Jim
06/11/2022
by:
Michael
09/17/2022
Received early. Thanks
by:
Cesar
07/17/2021
by:
Jayden
01/05/2023
by:
Ed
09/28/2022
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Info for this part was:
Edited by:
Lindsey S
Installed by:
Jeff D
Expert Research:
Jameson C
Updated by:
Wilson B
Written by:
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Written by:
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