OZISENS 2000lb 5 on 4.5 Trailer Hub Kit — 1-1/16in Straight Spindle, Pre-Lubed Black

OZISENS 2000lb 5 on 4.5 trailer hub kit is a fully assembled, pre-lubricated hub assembly designed for 1‑1/16" straight (BTR) spindles—complete with bearings, seals, nuts, caps and hardware for immediate installation.

This kit supplies everything needed to replace or upgrade hubs on 2000 lb trailer axles using a 1‑1/16" straight spindle (not compatible with tapered spindles). Parts are matched to fit L44649 inner and outer bearings and 1.25" I.D. grease seals, and the hubs arrive pre-lubricated and partly assembled to reduce install time. The hubs feature a black protective coating to resist corrosion and extend service life, and the kit includes castle spindle nuts sized for 1" spindle threads.

How do I know this hub kit fits my trailer spindle?

Confirm compatibility by measuring your spindle and checking bearing/seal specs. This OZISENS kit is intended for 1‑1/16" inside diameter bearing fitment and BTR straight spindles only; it will not work on tapered spindles.

• Spindle inner diameter: 1‑1/16" (bearing I.D. L44649).
• Grease seal I.D.: 1.25" (fits included seals).
• Lug pattern: 5 on 4.5" bolt circle.
• Threaded spindle nut: 1" diameter castle nut compatible.

What comes in the box and what is pre-assembled?

The kit contains two hubs and a complete set of bearings, seals, nuts and small hardware so you can install right away. Inner and outer L44649 bearings plus the 1.25" I.D. grease seals come pre-assembled and lubricated to save time while other components are organized for straightforward assembly.

• 2 x 2000 lb hubs (5x4.5" bolt pattern).
• 4 x L44649 bearings, pre-lubed and installed.
• 2 x 1.25" I.D. grease seals pre-lubricated.
• Complete hardware: lug nuts, spindle nuts, washers, cotter pins, dust caps, rubber plugs.

What materials and protection are used to resist corrosion?

Hubs are manufactured from durable metal with a black protective coating applied to the exterior surface to limit rust and corrosion from road and weather exposure. The finish improves longevity when combined with correct maintenance and regular inspection.

• High-strength hub material for load support.
• Black corrosion-resistant surface coating on hub exteriors.
• Sealed bearings and dust caps to help keep contaminants out.
• Pre-lubrication to reduce early wear during break-in.

How should I maintain the hub kit after installation?

Routine checks and occasional repacking of bearings keep hubs performing reliably. Verify torque and cotter pin placement after initial miles, inspect seals and dust caps for damage, and reapply grease according to towing frequency and environmental conditions.

• Check spindle nut torque and cotter pin security after first 50 miles.
• Inspect seals and dust caps for leaks or damage periodically.
• Repack bearings and replace grease if water or contamination is found.
• Follow trailer axle service intervals for safe towing.

Who is this for: The OZISENS 2000 lb 5x4.5 hub kit is intended for DIYers, trailer repair shops and fleet owners who need a ready-to-install hub assembly for single-axle or tandem trailers rated at 2000 pounds per axle that use 1‑1/16" straight (BTR) spindles. It’s ideal when you want a complete replacement set with pre-lubricated bearings and corrosion-resistant finishing to speed up installation and reduce initial maintenance.