3,500 lbs Trailer Axle Electric Brake Kit 10 x 2.25 in - Reliable Fit

In this review the 3,500 lbs Trailer Axle Electric Brake Kit earns a recommendation for trailer owners who need a complete, ready-to-install replacement braking assembly. The biggest reason to buy is the all-in-one nature: the kit ships with matching 10' x 2.25' hub and drum assemblies, electric backing plates, bearings and all mounting hardware, which significantly reduces parts hunting and installation time for common 3,500 lb axles. It is presented as a practical, budget-minded way to restore trailer braking on Al-Ko, Dexter, Lippert and other compatible axles.

Key Features

• Complete hub and drum assemblies: Comes with a pair of 10' x 2.25' hub and drum units with a 5-4.5' bolt pattern for straightforward replacement of worn hubs.
• Electric backing plates included: The kit includes matching left and right 10' x 2.25' electric backing plates to ensure reliable braking engagement and correct shoe alignment.
• All installation hardware: Bearings, seals, lug nuts, grease caps, cotter pins and spindle hardware are included so installers can finish the job without additional parts.
• Compatibility with major axles: Designed to work with popular axle brands and 84 spindles with a 4-hole brake flange, simplifying selection for many trailer owners.
• Engineered bearings: Supplied with inner bearing L68149 and outer bearing L44649 for intended fit and long-term performance.
• Manufacturing standard: Produced in an ISO/TS-16949 certified facility, indicating consistent quality control across components.

Who It's For

The kit is best for DIYers and independent trailer owners repairing or restoring standard 3,500 lb trailer axles who want a single box solution that minimizes additional purchases. Because it includes open and closed grease caps and all fasteners, mechanics replacing both hubs and electric brakes will find it especially convenient.

It is not intended for specialty or custom axles outside the 5-4.5' bolt circle and 84 spindle specification, nor is it for buyers who need drum sizes or bolt patterns different from the listed 10' x 2.25' and 5-4.5' arrangement. Professionals working on heavy commercial equipment should verify load and regulatory requirements before selecting this kit.

Pros & Cons

Pros

• Comes as a complete kit, saving time and ensuring parts compatibility during installation.
• Works with major axle brands like Al-Ko, Dexter and Lippert, making fitment checks easier.
• Quality bearings and seals are included for a proper rebuild of the hub assembly.
• Manufactured to ISO/TS-16949 standards, which supports consistent part quality.

Cons

• Limited to the specific 5-4.5' bolt pattern and 84 spindle/4-hole brake flange, so fit must be confirmed before purchase.
• Does not include electronic controllers or wiring beyond the backing plates, so extra components may be required for a full electrical brake system install.

Specifications

Rated capacity	3,500 lbs
Drum diameter	10' x 2.25'
Bolt pattern	5-4.5' (2.625' stud spacing)
Spindle / flange type	84 spindle with 4-hole brake flange
Bearings	Inner L68149, Outer L44649
Included hardware	Bearings, seals, lug nuts, grease caps, cotter pins, spindle washers, tang washers, spindle nuts, mounting hardware
Manufacturing standard	ISO/TS-16949 certified facility

Our Verdict

The 3,500 lbs Trailer Axle Electric Brake Kit is a practical, value-oriented choice for trailer owners needing a full replacement hub and brake assembly that fits common axles. With included bearings, seals and hardware plus compatibility with major axle brands, it eliminates much of the guesswork and makes a one-stop repair feasible. Confirm the 5-4.5' bolt pattern and 84 spindle fit first, and this kit delivers solid performance and straightforward installation for most light trailer applications.

Frequently Asked Questions

Will this kit fit my axle with a 5-bolt pattern?
Yes if your bolt circle measures 5-4.5' with 2.625' spacing between adjacent stud centers and the axle uses an 84 spindle with a 4-hole brake flange.

Are bearings and seals included?
Yes, the kit includes inner bearing L68149, outer bearing L44649 plus seals, grease caps and spindle hardware for installation.

Does the kit include brake controllers or wiring?
No, it includes the electric backing plates and mechanical hardware but does not ship controllers or trailer wiring; those are purchased separately.