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

  • 10K Heavy Duty Electric Brake Assembly – 12.25x4 Left Hand (Driver's Side)
  • 10K Heavy Duty Electric Trailer Brake Assembly (Pair) – 12.25x4 Right Hand & Left Hand
  • 10K Heavy Duty Complete Electric Trailer Brake Assembly – 12.25x4 (Right & Left Hand)
  • Ensure the smooth and reliable operation of your trailer with our 3500 lb Trailer Axle U-Bolt Kit. This comprehensive kit is designed to provide all the necessary co3500 lb Trailer Axle
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10K Heavy Duty 12.25"x4" Trailer Axle Electric Brake Assembly - 10000 lb Capacity - Left Hand (Driver Side)

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

SKU : 10HDLHBRKAS

Online price only

$97.99

Online price only

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4.6
Rated 4.6 out of 5 stars
154 Reviews
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10K Electric Trailer Brake Assembly — Left Hand (Driver Side) | 12.25" × 4" | 7-Bolt Flange

Upgrade your trailer’s braking system with this heavy-duty 10K electric brake assembly designed for Dexter heavy-duty trailer axles. Built for demanding towing conditions, this driver-side brake delivers strong stopping power and dependable performance for equipment, cargo, and commercial trailers.

Note: Fits Dexter heavy-duty axles only. Not compatible with Rockwell, Texas Pride, or TK trailer axles.

Brake Assembly Specifications

  • Position: Left hand (driver side)
  • Brake size: 12.25" × 4"
  • Axle capacity: 10,000 lbs per axle
  • Mounting flange: 7-bolt pattern
  • Weight: 19 lbs
  • Shipping dimensions: 14" × 14" × 6" box
  • Compatibility: Dexter heavy-duty axles only

What’s Included

  • (1) 10K electric brake assembly — driver side

Key Benefits

  • Heavy-duty brake assembly designed for 10K trailer axles
  • Strong, reliable stopping power for heavy loads
  • Rear adjustment ports allow quick brake tuning
  • Simple installation with standard wiring connection
  • Durable construction built for demanding trailer use

Installation Notes

  • Installation requires seven mounting bolts and two wire connections. Mounting hardware is sold separately.
  • For best braking performance, new brake assemblies should be burnished before regular use.

Brake Burnishing Procedure

  • Perform 20–30 moderate stops from 40 mph down to 20 mph.
  • Allow the brakes to cool between each application.
  • This process helps properly seat the brake shoes and ensures optimal braking performance.

Ideal For

  • Equipment trailers
  • Heavy-duty utility trailers
  • Cargo and flatbed trailers
  • Commercial hauling trailers

Why Buy from The Trailer Parts Outlet?

  • Fast shipping
  • Bulk and wholesale options available
  • High-quality trailer brake components
  • Expert support for selecting the right parts

Order your 10K electric trailer brake assembly today and restore dependable braking performance to your trailer.

4.6
Rated 4.6 out of 5 stars
Based on 154 reviews
Total 5 star reviews: 123 Total 4 star reviews: 15 Total 3 star reviews: 5 Total 2 star reviews: 1 Total 1 star reviews: 10
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154 reviews
  • RB
    Robert B.
    Verified Buyer
    4 minutes ago
    Rated 5 out of 5 stars
    New Brake

    Fit perfectly and was easy to install.

    Was this helpful?
  • LR
    LARRY R. a. B. M.
    Verified Buyer
    4 days ago
    Rated 5 out of 5 stars
    brake assemblies

    are great quality at a great price working very well

    Was this helpful?
  • JW
    John W.
    Verified Buyer
    3 weeks ago
    Rated 5 out of 5 stars
    HYD BRAKES

    Form, fit, and function just like they should.

    Was this helpful?
  • GN
    George N.
    Verified Buyer
    1 month ago
    Rated 5 out of 5 stars
    Replacement Brake Assembly

    Received on time and worked as described.

    Was this helpful?
  • MB
    Mark B.
    Verified Buyer
    1 month 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.

    Was this helpful?
    The Trailer Parts Outlet
    1 month ago

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

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