4 Sets Trailer Hub Wheel Bearing Kit for 8000 lbs Axles - Complete Fit

In this review of the 4 Sets Trailer Hub Wheel Bearing Kit for 8000 lbs axles, the bottom line is simple: it is a complete, value-packed overhaul kit for owners who need reliable hub service parts without hunting down individual components. The reviewer found the kit delivers well on fit and build quality for standard boat and utility trailer hubs, and the inclusion of two types of grease seals, dust caps and spindle hardware makes it a practical one-stop replacement for routine hub maintenance.

Key Features

• Complete kit: Includes inner and outer bearings and races plus seals and mounting hardware to replace all four hubs at once without extra parts shopping.
• Two grease seal sizes: Comes with both 10-36 and 10-10 grease seals so the kit fits common boat trailer hub openings and helps prevent grease leakage.
• Premium material: Bearings and races are made from alloy steel with precision manufacture for durable, long-lasting service under trailer loads.
• Compatibility: Designed for 8000 lb trailer axles and for axle diameters from 1.25 in to 1.75 in, offering a precise fit for many standard hubs.
• Installation convenience: Includes dust caps, rubber plugs, spindle nuts, cotter pins and washers to simplify reassembly and reduce trips to the parts store.

Who It's For

The kit is aimed at trailer owners, boaters and small fleet maintenance technicians who need to service or rebuild wheel hubs on 8000 lb class axles and who value having a full set of matching bearings, races and seals. It is also a strong choice for anyone who prefers purchasing one comprehensive kit rather than sourcing multiple individual pieces.

Those with light duty trailers under 3000 lb or with nonstandard hub dimensions should double-check seal dimensions and axle diameters before buying; the kit performs best when the listed bearings and seal sizes match the hub bore and spindle measurements.

Pros & Cons

Pros

• Comprehensive contents eliminate guesswork and ensure matching inner and outer components for all four hubs.
• Good build quality on bearings and races gives confidence for trailer loads up to the specified axle rating.
• Two grease seal sizes and multiple installation parts increase compatibility and ease of service.

Cons

• Some users report mixed experiences with the seals, so confirm fit to your hub bores before final assembly.

Specifications

Kit contents	4 inner bearings 25580, 4 inner races 25520, 4 outer bearings 02475, 4 outer races 02420, 4 grease seals 10-36, 4 grease seals 10-10, 4 dust caps, 4 rubber plugs, 4 spindle nuts, 4 cotter pins, 8 washers
Grease seal sizes	10-36 (2.250 in x 3.376 in) and 10-10 (2.125 in x 3.375 in)
Material	Alloy steel bearings and races
Axle rating compatibility	Fit for 8000 lbs axles
Axle diameter fit	1.25 in to 1.75 in axles

Our Verdict

The 4 Sets Trailer Hub Wheel Bearing Kit is a practical, economical option for owners servicing 8000 lb axles who want matched bearings, races and hardware in one package. Its durable alloy steel components and two seal sizes make it good value for routine rebuilds, though buyers should verify seal and spindle fit for their specific hubs before final installation.

Frequently Asked Questions

Will this kit fit my trailer axle?
It fits axles with diameters from 1.25 in to 1.75 in and is intended for 8000 lb axle applications; verify your spindle diameter before purchase.

Are all installation parts included?
Yes, the kit includes dust caps, rubber plugs, spindle nuts, cotter pins and washers to simplify hub reassembly.

What if the grease seal doesn't match my hub?
The kit supplies two seal sizes (10-36 and 10-10); if neither matches your hub bore you will need the correct seal size to ensure proper grease retention.