TRAILER SUPPLIES WA-77-1210-0102-2PAIRS Electric Brake Axles 12.25 X3.375 Kit 4PCS 9K 10K

( Brand: Trailer Supplies ), ( Manufacturer Part Number: WA-77-1210-0102-2PAIRS ), ( Manufacturer Warranty: 2 Years ), ( Item Width: 12.25 ), ( Vintage Part: No ), ( Item Height: 3.38 ), ( Oem Part Number: Dexter Part Number K23-450-00 Lh / K23-451-00 Rh ), ( Country/region Of Manufacture: China ), ( Number Of Axles: 1-2 ), ( Type: Electric Trailer Brake )

Review TRAILER SUPPLIES 12.25 Inch Electric Brake Kit 4pcs Self adjusting 9k 10k Axles fits X3

Introducing the Trailax W-77-1210-0102-2Pairs Electric Brake Kit, a top-tier solution for enhancing your trailer's braking system. This 4-piece set includes two self-adjusting axle assemblies, each featuring 12.25 inches length and 3.375 inches width, designed for trailers with a gross axle weight rating of 9,000 to 10,000 pounds.

Each axle assembly in this electric brake kit comes equipped with 4 self-adjusting brake drums. These drums feature an innovative design that automatically adjusts the brake shoes as they wear out, ensuring optimal braking performance and reducing the need for frequent adjustments. This not only saves you time but also ensures consistent and reliable braking throughout the life of your trailer.

The electric brake kit includes a wiring harness with a 7-pin connector, which easily plugs into your trailer's electrical system. This wiring harness allows for easy installation and ensures seamless communication between the trailer's lights and the tow vehicle.

Moreover, this electric brake kit utilizes 1-1/4 inch electric brake controllers, which can be mounted in various locations in your tow vehicle for maximum convenience. These controllers offer adjustable sensitivity, allowing you to customize the braking response to your preference.

The self-adjusting 9k 10k axles in this electric brake kit are made from high-quality materials, ensuring durability and strength. They are designed to handle the heavy loads and demanding conditions that trailers often encounter. Furthermore, the electric brakes provide smoother and more responsive braking compared to traditional drum brakes, ensuring a safer and more enjoyable towing experience.

In summary, the Trailax W-77-1210-0102-2Pairs Electric Brake Kit is a top-notch solution for upgrading your trailer's braking system. With its self-adjusting axle assemblies, easy-to-install wiring harness, adjustable electric brake controllers, and high-quality materials, this kit offers reliable, consistent, and efficient braking performance for trailers with a gross axle weight rating of 9,000 to 10,000 pounds.

Buying an Electric Brake Kit with Self-Adjusting 9k/10k Axles (Model WA-77-1210-0102-2pairs)

This article provides an analysis of the pros and cons of purchasing a WA-77-1210-0102-2pairs electric brake kit with self-adjusting 9k/10k axles for trailers.

1. Enhanced Safety: Electric brakes offer better stopping power compared to traditional mechanical brakes. They also provide proportional braking, ensuring that the trailer stops at the same rate as the towing vehicle.

2. Self-Adjusting Feature: The self-adjusting feature in this electric brake kit eliminates the need for manual adjustments, saving time and effort.

3. Improved Towing Capability: The 9k/10k axles can support heavier loads, making it suitable for towing larger trailers or heavier loads.

4. Easy Installation: The kit comes with comprehensive instructions, making the installation process relatively straightforward for DIY enthusiasts. Professional installation is also an option.

1. Cost: The electric brake kit with self-adjusting axles is more expensive than traditional mechanical brake kits.

2. Compatibility: Ensure that the kit is compatible with your specific trailer make and model. Incorrect installation may lead to safety issues and potential damage to the components.

3. Weight: The electric brake kit and self-adjusting axles add additional weight to the trailer, which may affect its overall performance and fuel efficiency.

In conclusion, the WA-77-1210-0102-2pairs electric brake kit with self-adjusting 9k/10k axles offers several advantages, including enhanced safety, self-adjusting feature, improved towing capability, and easy installation. However, it also comes with some disadvantages, such as increased cost, potential compatibility issues, and additional weight.

If you frequently tow heavy loads or require the added safety and convenience of electric brakes, this kit could be a worthwhile investment. Consider the cost-benefit analysis and ensure compatibility with your trailer before making a purchase. For those with lighter trailers or limited budgets, a mechanical brake kit may suffice.

Details:

Self-Adjusting Design. Used on utility Trailers, dump livestock Trailers more. Heavy-Duty Electric Trailer Brake Kit Fits 9K 10K Axles Includes: 4 complete brake assemblies 2 left-hand 2 right-hand. Durable, heat-resistant friction material for smoother stops.

Shoes, magnets, springs, and backing plates pre-installed. Size: 12.25 x 3.375. Works with 16 17.5 Trailer wheels. No manual adjustment required improved braking performance.

Built for Strength Safety. Fits 7-hole brake flanges on Dexter-style 9K 10K axles. Pre-Assembled Ready to Install. Designed for heavy-duty towing consistent, quiet braking.

Automatically maintains proper shoe-to-drum clearance. OEM Replacement.

part #: wa77121001022pairs prices

• $172.95-$175.99

specifications traibrak:

• for models: X3
• brand: Trailer Supplies
• mpn: Wa-77-1210-0102-2pairs
• manufacturer warranty: 2 Years
• item width: 12.25
• vintage part: No
• item height: 3.38
• oem part number: Dexter Part Number K23-450-00 Lh / K23-451-00 Rh
• country/region of manufacture: China
• number of axles: 1-2
• type: Electric Trailer Brake

offer traibrak:

• started: October 10, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 5
• best offers: True

general traibrak:

• Car Truck Parts Accessories > Towing Parts Accessories > Trailer Brake Controllers
• condition: New

shipping traibrak:

• type: Fixed
• service: Expedited
• class: Expedited
• cost: $0.00
• transit: 4-7 Days

seller traibrak:

• # reviews: 49
• city: Grand Prairie, Texas
• rating: 100.0%

returns traibrak:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

payments traibrak:

• credit card: Discover
• wallet: Paypal
• other

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