Description
Product Overview
The Southwest Wheel Trailer Brake Kit (model BK550ELE) is engineered for durability and performance on a wide range of trailer axles. Constructed from high‑strength steel with a corrosion‑resistant painted finish, the kit includes a pair of TruRyde 10″ x 2¼” hubs and drums, electric backing plates, and a full complement of bearings, seals, lug nuts, grease caps, cotter pins, spindle washers, and mounting hardware. Designed for 12 V electric brake systems, it fits 84‑spindle configurations with a four‑hole brake flange, delivering reliable stopping power for both light‑duty and heavy‑duty applications.
Usage
Ideal for owners of Al‑Ko, Dexter, Lippert, and Quality trailer axles, this brake kit excels in commercial hauling, RV towing, and agricultural trailer use. Its ISO/TS‑16949 certified components ensure consistent performance in varied climates, from hot desert roads to icy mountain passes. Installation requires no special tools beyond standard hand tools, making it suitable for DIY enthusiasts and professional mechanics alike.

Why Choose Us
Southwest Wheel combines over a decade of trailer brake expertise with rigorous QAI testing to guarantee safety and longevity. Each kit is assembled in an ISO‑registered factory, providing traceable quality control and compliance with automotive standards. The inclusion of all necessary hardware eliminates the need for additional purchases, reducing total project cost and time.
Key Features
- Complete installation set: hubs, drums, backing plates, bearings, seals, and hardware.
- 12 V electric design compatible with most trailer brake controllers.
- Painted steel construction resists corrosion for extended service life.
- Fits 84 spindles with a four‑hole brake flange, supporting multiple axle brands.
- ISO/TS‑16949 certified manufacturing ensures consistent quality and performance.
FAQ
What trailer axles are compatible with this brake kit?
The kit is designed to work with Al‑Ko, Dexter, Lippert, and Quality axles that use a four‑hole brake flange and 84‑spindle configurations.
Is any special tooling required for installation?
No special tools are needed beyond standard hand tools such as wrenches and sockets. All mounting hardware is included.
Can this kit be used on both new and older trailers?
Yes, the kit’s dimensions and mounting pattern are compatible with vintage 1919‑style trailers as well as modern designs, making it a versatile upgrade option.
What warranty does Southwest Wheel provide?
Southwest Wheel offers a limited one‑year warranty covering manufacturing defects, backed by their QAI certification program.
How does the 12 V system integrate with my existing brake controller?
The kit’s electric backing plates connect directly to standard 12 V trailer brake controllers, providing seamless integration without additional adapters.




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