Replacement Bearing Kit for a Harbor Freight 90154 Trailer

Updated 11/04/2025 | Published 10/02/2025

Question:

I have a Harbor Freight trailer, item number 90154. What hub assembly is compatible with this trailer? The bearings show 30205/P6, QYDB, and ZM stamped on them. I also need to know which grease seal is compatible as well. Thanks

asked by: Kevin

Expert Reply:

Hey Kevin!

Your 30205 bearing number isn't a common bearing type, but that's pretty normal for a Harbor Freight trailer.

If you can measure the spindle on your axle at the specified locations in the attached photo I can see if we can get you setup with some replacement bearings and grease seals.

Let me know what you find and I'll be more than happy to help out!

expert reply by: Jon G

Trailer Spindle Measurements for Bearing and Seals
(click to enlarge)

Jon G.

10/30/2025

Hey Kevin, were you able to get those spindle measurements for your Harbor Freight trailer? Once you have them, I can help find the right bearings and grease seals. Let me know what you find so we can get you set up.

Kevin

11/3/2025

@JonG Good evening. I do not have the measurements. However, I called your customer support and the recommendation was to go with this part number: AKIHUB-440-2-1K. It seems to be the correct part, but I have not used the trailer since replacing the hub. I had a little difficulty putting the cotter pin in after installing the castle nut as I think the replacement hub is slightly longer than the original. Thanks for your support!