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Dexter K23-478-00 Electric Trailer Brake Assembly 10" x 2-1/4" Left Hand Nev-R-Adjust 4400 lbs

Manufacturer

Dexter Marine Products

<h3>Dexter Marine Products: The Standard in Trailer Components Since 1960</h3><p>Few names carry as much weight in the trailer industry as <strong>Dexter Marine Products</strong>. Founded in 1960 and headquartered in Elkhart, Indiana, Dexter has grown into one of the most respected manufacturers of trailer axles, brakes, suspension systems, and related hardware in the world. With more than 3,800 employees across the United States and Canada and 18 manufacturing facilities, Dexter operates at a scale that few competitors can match — and that scale translates directly into consistent, engineering-driven quality for the end user.</p><p>What sets Dexter apart is a dedication to serving some of the most demanding towing environments imaginable. Boat trailers face a unique combination of stresses: saltwater corrosion, repeated submersion at launch ramps, heavy dynamic loads at highway speeds, and the shock of uneven pavement. Dexter engineers its marine product line specifically to meet these challenges head-on, offering components with galvanized, zinc-plated, and powder-coated finishes designed to resist the elements season after season.</p><p>Across the broader trailer market — covering commercial, RV, agricultural, utility, and marine applications — OEM manufacturers have installed more than 45 million Dexter axles, a figure that speaks to the brand's reliability at scale. Their in-house laboratory conducts rigorous stress, fatigue, and metallurgical evaluations, while computer-equipped test vehicles analyze real-world product performance before anything reaches the market.</p><h3>A Complete Brake System Under One Roof</h3><p>One of Dexter's greatest strengths is the breadth of its brake ecosystem. Rather than offering just one piece of the puzzle, Dexter supplies the entire braking chain. At the heart of many hydraulic systems are Dexter's <a href="/12891-dexter-marine-products-brake-actuators-200201">brake actuators</a> — including both surge-style and electric-over-hydraulic designs — that translate towing vehicle deceleration into precise hydraulic pressure at the trailer wheels. These actuators work in tandem with Dexter's extensive lineup of <a href="/12891-dexter-marine-products-brakes-brake-parts-200202">brakes and brake parts</a>, which includes electric drum, hydraulic drum, and hydraulic disc configurations to suit virtually any trailer application.</p><p>For trailers that demand the highest stopping performance, Dexter's <a href="/12891-dexter-marine-products-disc-brake-caliper-1704">disc brake calipers</a> feature a fixed, self-adjusting design with easily replaceable pads. The disc brake line spans axle ratings from 3,500 lbs. to 12,000 lbs. and is covered by a 5-year limited warranty, making it a long-term investment in towing safety.</p><h3>Hubs, Bearings, and the Hardware That Keeps Wheels Turning</h3><p>Beyond braking, Dexter supplies the rotational hardware that keeps trailer wheels in motion reliably. Their <a href="/12891-dexter-marine-products-hubs-200550">trailer hubs</a> are precision-engineered with corrosion-resistant construction, and many feature Dexter's signature E-Z Lube fittings for straightforward routine maintenance. Complementing the hub lineup, Dexter's wheel bearing and hub assemblies deliver a complete, ready-to-install solution that simplifies both initial setup and replacement down the road.</p><p>Whether you're outfitting a new boat trailer, restoring an aging RV axle, or sourcing OEM replacement parts for a commercial fleet, Dexter Marine Products offers an integrated system where every component is designed and tested to work together. That systems-level thinking — from actuator to caliper to hub — is the core of why trailer builders and enthusiasts alike have trusted the Dexter name for over six decades.</p>

Part Number

K23-478-00
09/13/2036 6:46 AM
Sale Price

$149.61

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dexter K23-478-00 is a complete left-hand electric trailer brake assembly designed for 4,400 lb capacity axles manufactured after May 1, 2009. This 10" x 2-1/4" brake assembly features Dexter's patented Nev-R-Adjust technology, which provides automatic adjustment and reduces maintenance requirements compared to traditional manual-adjust brakes.

Key Features:

  • Complete electric brake assembly includes brake, mounting hardware, plugs, and installation instructions
  • Nev-R-Adjust self-adjusting mechanism eliminates manual adjustment needs
  • 10 inch diameter x 2-1/4 inch wide brake shoes provide excellent stopping power
  • 4-bolt mounting flange pattern for secure installation
  • Compatible with 13" to 15" trailer wheels
  • Designed for left-hand (driver's side) installation
  • Requires electric brake controller (sold separately)

This genuine Dexter brake assembly is engineered for reliable performance on travel trailers, utility trailers, boat trailers, and other towable applications. The Nev-R-Adjust system ensures consistent braking performance throughout the life of the brake shoes, making it an ideal choice for trailer owners who want dependable stopping power with minimal maintenance.

Great customer service

Was good experience

Great price on a great product. Easy to buy on website, and fast shipping. Very happy with my purchase experience with thmotorsports.

Good if it arrives as promised

It was gr8 and convinced

Finding the part was super easy and simple. The only issue I really had was the delay in the shipping. I paid extra for faster shipping and it still took over a week to get to me. When I tried contacting them through the chat I never got any feedback after asking questions just a "let me check that for you" then chat ended. I finally decided to email and then I got a reply basically saying the same thing. Correct part did wind up showing up without tracking update(kept showing sent to warehouse).

Nice website and competitive prices

Just didn&#039;t give an idea about what color vents would be

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