Replacement 4 Lug Trailer Hubs for Older Trailer with 3/4" Outer Bearing and 1" Inner Bearing

Updated 06/08/2026 | Published 06/01/2026

Question:

i have a old trailer that Im rebuilding, its a four lug hub for inch, Im looking for 2 hubs, it looks like 3/4 inside bearing diameter on the front bearing and 1 inch on the inside bearing, do you carry this item?

asked by: carlo m

Expert Reply:

Hi Carlo,

We do carry some 4 lug trailer hubs, but based on the measurements you provided, I am not confident that the Trailer Idler Hub Assembly # CE13100 would be the correct fit and this would be the closest option we would carry to your current measurements. That hub uses L44643 inner and outer bearings, and both bearings have a 1 inch inner diameter. Since you measured what appears to be a 3/4 inch outer bearing and a 1 inch inner bearing, your trailer may have an older spindle and hub combination that differs from what we commonly see today.

I completely understand wanting to get this right the first time. A mismatched hub can cause excessive play, heat buildup, and premature wear, so it is worth taking a moment to verify the spindle dimensions before ordering. If possible, I recommend either measuring the spindle again with digital calipers or removing the hub and checking the bearing numbers stamped directly on the bearings. The bearing numbers are the most reliable way for me to identify exactly what you have and determine whether we carry a direct replacement.

If you can send the bearing numbers or a few photos of you measuring the spindle and hub assembly, I'd be happy to take a closer look and help track down the correct hubs for your rebuild. What do you plan to haul once the old trailer is rolling again?

expert reply by: Heather A