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Trailer Parts Pro 6,000 lb Trailer Axle Pre-Greased Hub & Drum Assembly 6 on 5.5" Bolt Pattern, #42 Spindle,1/2" Studs,HD42656BX


Regular price $147.49 USD
Shipping calculated at checkout.

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.

This brake assembly fits most standard 7,000 lb trailer axles that use 12" × 2" electric brakes with a 5-bolt mounting flange. Please verify your axle rating and brake dimensions before ordering. If you're unsure, send us your axle tag or hub information and we'll help confirm compatibility.
Yes. It is compatible with many standard Dexter, Lippert, Rockwell American, AL-KO, and other 7,000 lb trailer axles that use a standard 12" × 2" brake assembly. Always verify your axle specifications before purchasing.
Yes. This is a self-adjusting electric brake assembly, which automatically maintains proper brake shoe clearance during normal operation. This reduces maintenance and helps provide consistent braking performance.

Product Overview:

 This premium pre-greased trailer hub and drum assembly provides a dependable service solution for 6,000 lb capacity axles configured with #42 spindles. Built with a 6 on 5.5" bolt pattern and 1/2" studs, this convenient kit comes ready for installation with both the inner and outer races pre-pressed straight into the hub assembly. The durable painted finish and dual grease or Zerk-lube compatibility deliver excellent, long-lasting performance alongside smooth braking integration on your standard 12" x 2" trailer brake setup.

What's Included by Kit Option: 

 1 x 6 on 5.5" Pre-Greased Hub & Drum

1 x 25580 Inner Bearing

1 x 15123 Outer Bearing

1 x 25520 Inner Race

1 x 15245 Outer Race

1 x 110-36 Grease Seal

1 x 45896 Grease Cap

1 x 21-42-1 Grease Cap

1 x 85-1 Grease Cap Plug

6 x X1023R Coned Wheel Nuts

Specifications:

Brand: Trailer Parts Pro

Manufacture Part Number: HD42656BX

Alternate Item Numbers: PPG92655, 7650041-03B

Drum Dimensions: 12" x 2"

Bolt Pattern: 6 on 5.5"

Axle Capacity Rating Per Pair: 6K

Capacity Per Hub: 3,000 lbs

Fits Spindle: #42

Stud Size: 1/2"

Finish: Painted

Inner Bearing Part Number: 25580

Outer Bearing Part Number: 15123

Seal Inner Diameter: 2.250"

Thread Count: 20

Lubrication: Grease or Zerk-Lube

Brake Compatibility: 12" x 2" Brake

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  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
Kevin Foster
Pleasant Surprise

Accurate fitment made this hub assembly an easy replacement for my trailer.

S
Samuel Lemus
Easy Fit

This was a straightforward replacement with a secure fit and solid construction.

B
Benito Espinoza
Gets It Done

The axle hub installed cleanly and feels well built for regular trailer use.

T
Tyler Graham
Right Choice

Everything matched the listed setup, and the installation went smoothly.

  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
Kevin Foster
Pleasant Surprise

Accurate fitment made this hub assembly an easy replacement for my trailer.

S
Samuel Lemus
Easy Fit

This was a straightforward replacement with a secure fit and solid construction.

B
Benito Espinoza
Gets It Done

The axle hub installed cleanly and feels well built for regular trailer use.

T
Tyler Graham
Right Choice

Everything matched the listed setup, and the installation went smoothly.