8 on 6.5″ Bolt Pattern, 9/16″ Studs | 5.2K–7K Axle, Complete Pre-Greased Hub-Drum Assembly – #42 Spindle (Single Hub) 2.250″ Seal

The Trailer Parts Pro™ Complete Pre-Greased Hub-Drum Assembly is a high-quality, ready-to-install replacement hub for 5,200–7,000 lb trailer axles using a #42 spindle. Each hub is pre-greased and pre-assembled, with bearing races already pressed in to make installation fast, clean, and hassle-free.

Engineered for performance and reliability, this retail-boxed hub-drum is ideal for cargo, equipment, gooseneck, and utility trailers. Designed to meet or exceed OEM standards, it offers universal fitment with leading axle brands such as Dexter, Rockwell, Hayes, and AL-KO.

Key Features:
• Capacity: 3,500 lbs per hub (7,000 lbs per pair)
• Fits: 5.2K–7K trailer axles
• Spindle Type: #42
• Bolt Pattern: 8 on 6.5″
• Stud Size: 9/16″-18
• Bearing Cups: Pre-installed inner and outer races
• Bearings: 25580 (inner) and 14125A (outer)
• Seal: 2.25″ ID double-lip grease seal
• Lug Nuts: (8) 9/16″ coned wheel nuts included
• Lubrication Options: Grease or Zerk-Lube
• Brake Compatibility: Fits 12″ x 2″ electric or hydraulic drum brakes
• Finish: Painted black for corrosion resistance
• Mounting: Fits left or right side
• Manufacturer Location: Globally sourced
• Warranty: 1-year limited warranty
• Spindle Hardware: Sold separately

Included Components:
• (1) Hub-drum assembly (pre-greased)
• (1) Inner bearing (25580 – 1.75″ ID)
• (1) Outer bearing (14125A – 1.25″ ID)
• (1) Inner race (25520 – 3.265″ OD, pressed in)
• (1) Outer race (14276 – 2.717″ OD, pressed in)
• (1) Grease seal (10-36 – 2.25″ x 3.376″)
• (1) Grease cap (21-39 – 2.72″ OD)
• (1) Grease cap (21-43-1 – 2.72″ OD)
• (1) Rubber plug (85-1)
• (8) 9/16″ coned wheel nuts (6-53)

This Trailer Parts Pro™ pre-greased hub-drum assembly is retail boxed, pre-lubricated, and ready to bolt on — ensuring a perfect fit, dependable braking performance, and long-term durability for heavy-duty trailer applications.

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