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Trailer Parts Pro 5,200 -7,000 lb Trailer Axles Complete Pre-Greased Hub and Drum Assembly 8 on 6.5" Bolt Pattern, #42 Spindle, 9/16" Studs, HD42866BX-916


Regular price $141.49 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 highly reliable replacement solution for 5,200 lb to 7,000 lb capacity axles equipped with #42 spindles. Featuring an 8 on 6.5" bolt pattern and heavy-duty 9/16" studs, the kit offers maximum convenience as the inner and outer bearing races arrive professionally pre-pressed into the hub body. Its durable painted finish, dual grease/Zerk-lube compatibility, and high-strength design ensure smooth rotation and long-lasting stopping power for your standard 12" x 2" trailer brake systems.

What's Included by Kit Option:

1 x 8 on 6.5" Hub & Drum

1 x 25580 Inner Bearing

1 x 114125A Outer Bearing

1 x 25520 Inner Race

1 x 114276 Outer Race

1 x 110-36 Grease Seal

1 x 21-39 Grease Cap

1 x 21-43-1 Grease Cap

1 x 85-1 Grease Cap Plug

8 x 6-53 Coned Wheel Nuts

Specifications:

Brand: Trailer Parts Pro

Manufacture Part Number: HD42866BX-916

Reference Number: 119824

Alternate Item Numbers: HD42866BX-116, 9286T, PPG9286T, 7650050-03B, HD8-219-13-UC3-EZ-BX

Drum Size: 12" x 2"

Bolt Pattern: 8 on 6.5"

Axle Capacity Rating Per Pair: 5.2K - 7K

Capacity Per Hub: 3,500 lbs

Fits Spindle: #42

Stud Size: 9/16"

Finish: Painted

Inner Bearing Part Number: 25580

Outer Bearing Part Number: 14125A

Seal Inner Diameter: 2.250"

Thread Count: 18

Lubrication: Grease or Zerk-Lube

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