iBroPrat Trailer Hub Kit 5x4.5 3500 lb — Pre-assembled, Pre-greased Idler Hubs with Bearings & Seals

If you need a ready-to-install idler hub set for a 3,500 lb trailer axle, this iBroPrat 5-bolt on 4.5" bolt pattern kit arrives pre-assembled and lubricated, reducing installation time and the chance of missing parts. The package includes both hubs plus matched inner and outer bearings, grease seals, dust caps, spindle nuts, cotter pins, lug nuts and rubber plugs — everything to swap two hubs in one job. Built to meet U.S. G3000 standards, the hubs use carbon steel with anti-corrosion treatment and precision bearings for quieter operation.

How do I confirm this hub fits my trailer axle?

Measure your existing hub bolt pattern and bearing sizes before ordering. The kit is designed for a 5-lug layout with a 4.5" bolt circle (5x4.5) and accepts outer bearing L44649 and inner bearing L68149. If those match your current parts and your axle rating is 3,500 lb, this kit will fit typical #84 spindles.

• Confirm bolt pattern: 5 lugs on a 4.5" circle (center-to-outer hole method).
• Check bearings: outer L44649 (1-1/16" I.D.), inner L68149 (1-3/8" I.D.).
• Compatible with 1-1/16" to 1-3/8" spindle sizes for 3500 lb axles.

What’s included and how does pre-assembly help?

The kit ships with two complete hubs and all mounting hardware pre-installed and greased, cutting your prep work. Pre-lubricated bearings, sealed dust caps and protective plastic covers minimize grease leakage during transit and simplify on-trailer installation.

• 2 hubs, 2 L44649 outer bearings and 2 L68149 inner bearings.
• 10 lug nuts, 2 spindle nuts, 2 washers, 2 cotter pins, seals, caps and rubber plugs.
• Bearings pre-packed with grease and caps sealed to prevent contamination.

What materials and quality features does this hub kit offer?

iBroPrat hubs are forged from carbon steel with an anti-rust surface finish, while the bearings are made of hardened bearing steel for reliable load carrying and lower operating noise. The grease seals use a double-lip design to help retain lubrication and keep contaminants out, and the cap edges are tapered for easier fitment.

• Carbon-steel hub bodies with corrosion-resistant surface treatment.
• Precision bearing steel for L44649 and L68149 bearings.
• Double-lip grease seals and sealed dust caps for leakage protection.

How is the kit packaged and supported after purchase?

Each component is protected in bubble bags and boxed in heavy-duty packaging to prevent damage during shipping. iBroPrat also backs the product with a satisfaction guarantee and responsive customer support if you need a replacement or help during installation.

• Individual bubble-bag protection for small parts; packed in a heavy box.
• Clear parts count included so you can verify everything on arrival.
• Customer service available for replacements or installation questions.

Who this is for: Ideal for trailer owners, DIY mechanics and mobile repair shops replacing idler hubs on tandem or single-axle trailers rated around 3,500 lb. If your trailer uses a 5x4.5 bolt pattern and the listed bearing sizes match your spindle, this kit gives a fast, low-risk hub swap with complete hardware and pre-installed lubrication to get your trailer back on the road quickly.