12K-16K Trailer Axle Hydraulic Drum Brake Assembly - 12.25"x5" - 12000-16000 lb Capacity - Left Hand (Driver Side)

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12K-16K Trailer Axle Hydraulic Drum Brake Assembly - 12.25"x5" - 12000-16000 lb Capacity - Left Hand (Driver Side)

12K-16K Trailer Axle Hydraulic Drum Brake Assembly - 12.25"x5" - 12000-16000 lb Capacity - Left Hand (Driver Side)

SKU : ASK-12HYD

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Regular price $874.99

Online price only

SAVE 0% (833) 910-3416
4.5
Rated 4.5 out of 5 stars
142 Reviews
Shipping: Calculated at Checkout
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12.25"x5" Hydraulic Brake Assembly Package – 12000 lb-16000 lb Axles

Repair or Upgrade your trailer’s stopping power with this 12.25"x5" Hydraulic Brake Assembly Package. Designed for 12K–16K trailer axles, this repair kit fits popular brands like Dexter, TK, Lippert, and Texas Pride, making replacements simple and reliable.

Package Includes:

  • (1) 12.25" Left Hand Side Hydraulic Brake Assembly, Self -Adjusting
  • (1) 12.25" Right Hand Side Hydraulic Brake Assembly, Self -Adjusting
  • (1) 1 Quart Jug of Axle Oil (Oil Brand May Vary)
  • (2) 12K Trailer Axle Hub and Drum 8x6.5
  • (2) 21-36 Oil Bath Cap and Plug
  • (2) 3984 Inner Bearing 2.625" I.D
  • (2) 28682 Outer Bearing 2.250" I.D
  • (2) 10-56 Oil Seal 4.506" O.D 3.125" I.D
  • (2) 3920 Inner Race 4.438" O.D (Pre-Pressed In Hub)
  • (2) 28622 Outer Race 3.844" O.D (Pre-Pressed In Hub)
  • (2) 12-15K Tang Washer - 1.75 I.D" x 0.60"
  • (16) Coned Wheel Nuts

Brake Assembly Specs:

  • Brake Type: Hydraulic
  • Brake Size: 12.25" x 5"
  • Mounting Flange: 7-Bolt
  • Axle Rating: 12,000 lb – 16,000 lb
  • Adjustment: Self-Adjust
  • Compatibility: Dexter, TK, Lippert, Texas Pride
  • Warranty: 1 Year
  • Not Compatible with Rockwell American Axles

Features:

  • Easy Installation – Mounts with a 7-bolt brake flange and connects with just two wires (sold separately).
  • Simple Maintenance – Rear adjustment ports allow fast and precise brake adjustments.
  • Durable Construction – Built to handle heavy loads and demanding road conditions.
  • Trusted Quality – Backed by a 1-year warranty from The Trailer Parts Outlet.
  • Dexter Compatible Part: K23-408-00 & K23-409-00

Ready to Ship-Package Specs: (2) 14"x14"x7" Box @ 22 lbs each, (2) 14"x14"x7" Box @ 46 lbs each, (1) 13"x13"x6" @ 10 lbs. *Quantity 2 or more will ship on a 32"x32"x19" Wood Pallet with Freight Carrier chosen @ checkout.

Burnishing Instructions: To achieve optimal braking performance, burnish new brakes by performing 20–30 gradual stops from approximately 40 mph to 20 mph, allowing brakes to cool between each application.

Why Buy From The Trailer Parts Outlet?
We make trailer repairs simple. Whether you’re upgrading your fleet or replacing worn-out components, our premium hydraulic brake assemblies are engineered for strength, reliability, and safety. Order online today and get your trailer back on the road with confidence!

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
Customers Talked About
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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

    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.

    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

    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 👍

  • 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.