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Trailer Parts Pro 5,200-6,000 lb Trailer Axles Hub & Drum Bearing and Seal Kit, #42 Spindles, BK3-300


Regular price $41.97 USD

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received.

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

Product Overview:

Upgrade your trailer maintenance with the Trailer Parts Pro hub and drum bearing and seal kit, specifically engineered for 5.2K to 6K axles featuring #42 spindles. This comprehensive kit ensures smooth performance and reliable load handling by providing essential components for a single wheel assembly service. Designed for durability and precise fitment, this high-quality hardware set helps extend the lifespan of your trailer's wheel bearings and protects against premature wear.

What's Included by Kit Option: 

1 x 25520 Inner race

1 x 25580 Inner bearing

1 x LM67010 Outer race

1 x LM67048 Outer bearing

1 x 10-36 Double lip seal

1 x 165649 Cotter pin

Specifications:

Brand: Trailer Parts Pro

Part Number: BK3-300

Reference Number: 128704

Axle Capacity: 5.2K - 6K

Spindle Type: #42

Inner Race OD: 3.265"

Inner Bearing ID: 1.750"

Outer Race OD: 2.328"

Outer Bearing ID: 1.250"

Seal ID: 2.250"

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