6 on 5.5″ Bolt Pattern | 5.2K & 6K Axle, Complete Pre-Greased Hub-Drum Assembly – #42 Spindle (Single Hub), 1/2″ Studs, 2.250″ Seal

The Trailer Parts Pro™ Complete Pre-Greased Hub-Drum Assembly is a high-quality, ready-to-install solution designed for 6,000 lb trailer axles using a #42 spindle. Each hub-drum comes pre-greased and pre-assembled with bearing races already pressed in, saving you time and ensuring reliable performance.

Built to OEM standards, this retail-boxed assembly includes all key components — bearings, races, grease seal, cap, plug, and lug nuts — making it perfect for cargo, equipment, and heavy-duty utility trailers. Designed for use with 12″ x 2″ electric or hydraulic drum brakes, this hub provides dependable braking performance and smooth operation.

Key Features:
• Capacity: 3,000 lbs per hub (6,000 lbs per pair)
• Fits: 5.2K and 6K axles with #42 spindle
• Bolt Pattern: 6 on 5.5″
• Stud Size: 1/2″-20
• Brake Compatibility: For 12″ x 2″ drum brakes
• Lubrication Options: Grease or Zerk-Lube
• Pre-Greased: Yes – ready to install
• Finish: Painted for corrosion resistance
• Mounting: Fits left or right side
• Spindle Hardware: Sold separately
• Manufacturer Location: Globally sourced
• Warranty: 1-year limited warranty

Included Components:
• (1) Hub-drum assembly (pre-greased)
• (1) 25580 Inner Bearing – 1.75″ ID
• (1) 15123 Outer Bearing – 1.25″ ID
• (1) 25520 Inner Race (Pressed In) – 3.265″ OD
• (1) 15245 Outer Race (Pressed In) – 2.441″ OD
• (1) 10-36 Grease Seal – 2.25″ x 3.376″
• (1) 45896 Grease Cap – 2.44″ OD
• (1) 21-42-1 Grease Cap – 2.44″ OD
• (1) 85-1 Rubber Grease Cap Plug
• (6) X1023R Coned Wheel Nuts

This Trailer Parts Pro™ pre-greased hub-drum assembly provides the perfect combination of durability, convenience, and performance — ready to bolt on right out of the box.

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