10K Heavy Duty 12.25"x4" Trailer Axle Electric Brake Assembly - 10000 lb Capacity - Right Hand (Passenger Side)

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10K Heavy Duty 12.25"x4" Trailer Axle Electric Brake Assembly - 10000 lb Capacity - Right Hand (Passenger Side)

10K Heavy Duty 12.25"x4" Trailer Axle Electric Brake Assembly - 10000 lb Capacity - Right Hand (Passenger Side)

SKU : 10HDRHBRKAS

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Regular price $97.99

Online price only

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4.6
Rated 4.6 out of 5 stars
152 Reviews
Shipping: Calculated at Checkout
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Upgrade your trailer with this premium 12.25" x 4" electric brake assembly, built for 10,000 lb heavy-duty trailer axles. Designed for Dexter Heavy-Duty Trailer Axles, this brake system ensures reliable stopping power and simplified installation.

Note: This brake assembly is not compatible with Rockwell, Texas Pride, or TK Trailer Axles and only fits Dexter Heavy-Duty Axles.

Single Brake Assembly:

  • Size: 12.25" x 4"
  • Capacity: 10,000 lb per axle
  • Side: Passenger Side Only (Right Hand)
  • Bolt Pattern: 7-Bolt Flange
  • Heavy Duty
  • Shipment Specs: 1) 14x14x6 Box @ 19 lbs

Pair Set:

  • (1) Driver Side Brake Assembly – 12.25" x 4"
  • (1) Passenger Side Brake Assembly – 12.25" x 4"
  • Heavy-duty 10K capacity
  • 7-bolt brake flange
  • Shipment Specs: 2) 14x14x6 Box @ 19 lbs

Complete Brake Kit:

  • (1) Driver Side Brake Assembly – 12.25" x 4"
  • (1) Passenger Side Brake Assembly – 12.25" x 4"
  • (1) Quart Axle Oil
  • (2) 10-56 Unitized Oil Seals – 4.506" O.D. / 3.125" I.D.
  • (2) 395S Inner Bearings – 4.331" I.D.
  • (2) 387A Outer Bearings – 2.250" I.D.
  • (2) 394A Inner Races – 4.331" O.D.
  • (2) 382A Outer Races – 2.810" O.D.
  • Shipment Specs: 2) 14x14x6 Box @ 19 lbs 1) 14x14x7 @ 28 lbs

Half Crate (20 Brakes Total):

  • (20) Driver Side Brake Assemblies – 12.25" x 4"
  • (20) Passenger Side Brake Assemblies – 12.25" x 4"
  • Shipment Specs: 1) Crate/Pallet @ 800 lbs

Crate (80 Brakes Total):

  • (40) Driver Side Brake Assemblies – 12.25" x 4"
  • (40) Passenger Side Brake Assemblies – 12.25" x 4"
  • Shipment Specs: 1) Crate @ 1560 lbs

Features:

  • Easy-to-Install: Only 7 bolts and 2 wires required for a full install (hardware sold separately)
  • Rear Adjustment Ports: Make brake adjustments fast and simple
  • Compatibility: Dexter Heavy-Duty Trailer Axles ONLY
  • Durable & Reliable: Built to perform under heavy loads and demanding trailer use
  • 1-Year Manufacturer Warranty for peace of mind

New brake assemblies must be properly burnished to ensure optimal performance:

  • Perform 20–30 brake applications
  • Decelerate from 40 mph to 20 mph each time
  • Allow brakes to cool between applications

Order Your 10K Electric Trailer Brake Assemblies Today
Whether you need a single assembly or crate quantities, The Trailer Parts Outlet provides high-quality, affordable trailer brake parts with fast shipping and top-tier support. If you're unsure about fitment or need help selecting the right setup, contact our experts — we're here to help!

4.6
Rated 4.6 out of 5 stars
Based on 152 reviews
Total 5 star reviews: 121 Total 4 star reviews: 15 Total 3 star reviews: 5 Total 2 star reviews: 1 Total 1 star reviews: 10
Customers Talked About
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152 reviews
  • JW
    John W.
    Verified Buyer
    4 minutes ago
    Rated 5 out of 5 stars
    HYD BRAKES

    Form, fit, and function just like they should.

  • GN
    George N.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    Replacement Brake Assembly

    Received on time and worked as described.

  • MB
    Mark B.
    Verified Buyer
    2 weeks ago
    Rated 5 out of 5 stars
    Trailer brake assembly

    Brakes were what was expected. Fairly quick shipping. Although the packaging is a bit weak. Could use a bit more material to secure brake assembly in the box. Otherwise very good experience.

    The Trailer Parts Outlet
    2 weeks ago

    Thank you for your business and your feedback, we will definitely take that into consideration on our packaging!

  • DP
    Dale P.
    Verified Buyer
    3 weeks ago
    Rated 5 out of 5 stars
    brake assembly

    I was impressed with the product and the ease of replacing the 20 year old brakes on my trailer, the low cost and product quality

    The Trailer Parts Outlet
    3 weeks ago

    Great to hear you were impressed with the 3.5k Trailer Axle Electric Brake Assembly and that it made replacing your 20 year old brakes so easy, Dale! We're thrilled the product quality and low cost exceeded your expectations. It sounds like it was the perfect solution for updating your trailer. We really appreciate your business and thank you for your 5 star review!

    Loretta Peacock
    (936) 935-2186
    The Trailer Parts Outlet

  • CG
    Christopher G.
    Verified Buyer
    1 month ago
    Rated 5 out of 5 stars
    Fit perfectly.

    I have a 1999 Century boat trailer. It has drum brakes on the front axle. These fit perfectly and no problems. Haven’t had any issues with leaks or bleeding the brakes. Have not road tested yet.

    The Trailer Parts Outlet
    3 weeks ago

    Great to hear the 3.5K Trailer Axle Hydraulic Drum Brake Assembly fit perfectly on your 1999 Century boat trailer, Christopher! We're thrilled you haven't had any issues with leaks or bleeding the brakes. It sounds like everything is working out great for your front axle setup. We appreciate your business and thank you for your 5 star review!

    Loretta Peacock
    (936) 935-2186
    The Trailer Parts Outlet