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

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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

$137

Online price only

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4.5
Rated 4.5 out of 5 stars
142 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.

4.5
Rated 4.5 out of 5 stars
Based on 142 reviews
Total 5 star reviews: 113 Total 4 star reviews: 13 Total 3 star reviews: 5 Total 2 star reviews: 1 Total 1 star reviews: 10
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142 reviews
  • DH
    Danny H.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    trailer brakes

    great product great price

    Was this helpful?
    The Trailer Parts Outlet
    6 days ago

    Great to hear you're happy with the 3.5k Trailer Axle Electric Brake Assembly and found it to be a great value, Danny! We're thrilled the product and pricing met your expectations. Thank you for your business and your 5 star review!

    Lindsey Millican
    (936) 935-2186
    The Trailer Parts Outlet

  • CH
    Charles H.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    k Trailer Axle Electric Brake Assembly - 7000 lb - 12"x2" - Left Hand (Driver Side) - Dexter Compatible

    Easy installation and worked great.

    Was this helpful?
    The Trailer Parts Outlet
    6 days ago

    Great to hear the 7k Trailer Axle Electric Brake Assembly was easy to install and worked great, Charles! We're thrilled it's performing perfectly for you. Thank you for your business and your 5 star review!

    Lindsey Millican
    (936) 935-2186
    The Trailer Parts Outlet

  • KD
    Kevin D.
    Verified Buyer
    2 weeks ago
    Rated 1 out of 5 stars
    Brakes and hubs

    After talking to the salesman he sold me the wrong parts $300 shipping and $300 return shipping that they wouldn’t cover then try saying I used one but it wouldn’t even close to the right part

    Was this helpful?
    The Trailer Parts Outlet
    1 week ago

    Hi Kevin,

    We sincerely apologize for the confusion with the parts and the frustrating experience you've had with the shipping costs. It's definitely not the service we want to provide when our customers are working on important trailer projects.

    We understand how disappointing it must be to receive parts that don't fit your application, especially after speaking with our sales team. We take full responsibility for the mix-up and want to make this right.

    Thank you for taking the time to share your feedback with us, as it helps us improve our service.

    Anna Nicholas
    936-935-2186
    The Trailer Parts Outlet

  • BS
    Bryan S.
    Verified Buyer
    2 weeks ago
    Rated 5 out of 5 stars
    Trailer brakes

    Great product, fast delivery 👍

    Was this helpful?
  • MR
    Maurice R.
    Verified Buyer
    3 weeks ago
    Rated 5 out of 5 stars
    Great product and arrived on time.

    I haven’t had a chance to use them yet but they look great.

    Was this helpful?
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