How To Find Correct Replacement 6-Lug Hubs for Boat Trailer

Updated 02/20/2023 | Published 02/17/2023

Question:

31 boat. Tandem trailer. Used in salt water. 6 lug hubs. Im looking to simply replace the entire hubs. How many different sizes can there be?

asked by: Tim M

Expert Reply:

I have a few options for you to help with identifying the hubs on your trailer. The first and easiest method would be to crawl under the trailer and look for the axle tag on the beam. This should give an axle capacity which we can then use to find the bearings based off industry standards. For example, a 6,000 lb axle uses a 25580 inner and 15123 outer bearing like what comes with the Trailer Hub and Drum Assembly part # AKHD-655-6-G-K.

The other option would be to take the hubs off the trailer and either read the part numbers off the old bearings or measure them with a dial caliper to the nearest thousandth of an inch. I have attached an article that goes over this process in more detail.

I have also attached a link with list of our hub selection.

expert reply by: Conner L