Recommended Replacement Hubs for Harbor Freight Trailer with 5 on 4-1/2 Bolt Pattern

Updated 11/02/2021 | Published 10/31/2021

Products Featured in This Question

Timbren Silent Ride Suspension for Single Axle Trailers w/ 2-3/8" Round Axles - 2,000 lbs

(26)

$426.38

4" Carbon Fiber Digital Caliper

(26)

$11.93

Question:

Hello I’m looking to replace my harbor freight 5 on 4.5 hubs.

asked by: Joe M

Expert Reply:

In order to find the correct 5 on 4-1/2 hubs for your Harbor Freight trailer you will need to find the bearing and grease seal size from your current hubs. After removing your hub, check the bearings and grease seal for part numbers that should be located on the side. If they do not have numbers, or they are worn off, you will need to take some measurements.

Using a digital caliper like the # PTW80157, measure where the bearings and grease seal ride on the spindle, or you can measure the inner diameter of your existing bearings and seal. Once you have these numbers you will be able to match them up with the appropriate 5 on 4-1/2 hub.

I have attached an image showing where to measure as well as where the part numbers are typically located. I also attached a link to all of our hubs with a 5 on 4-1/2 bolt pattern for your reference.

expert reply by: Robin H