Can 4-Bolt Trailer Hub Be Upgraded to 5-Bolt Trailer Hub
Updated 02/03/2026 | Published 07/11/2024
Products Featured in This Question
Question:
I have a five lug axle that someone has put four lug hubs on. My question is, do they make a universal hub to fit the longer spindle of a 5 inch axle?
asked by: Ron M
Expert Reply:
Hey Ron, thanks for reaching out!
It sounds like you might have a 2,000 lb trailer axle because those hubs have both 4 on 4" and 5 on 4-1/2" bolt patterns available. For example, the etrailer Hub # AKIHUB-440-2-EZ-2K has a 4-bolt pattern while the etrailer Hub # AKIHUB-545-2-LFEZ-2K has a 5-bolt pattern, and they both fit the same spindle.
If you can verify what bearing numbers and seal dimensions your hub uses I'd be more than happy to help you find the correct replacement!
Product Page this Question was Asked From
Easy Grease Trailer Idler Hub Assembly for 2K Axles - 4 on 4 - L44649 Bearings - Pre-Greased
- Trailer Hubs and Drums
- Idler Hub
- EZ Lube
- Pre-Greased
- L44649 / L44649
- Standard Grade
- For 2000 lbs Axles
- 1/2 Inch Stud
- 4 on 4 Inch
- 8 Inch Wheel
- 10 Inch Wheel
- 12 Inch Wheel
- 13 Inch Wheel
- 14 Inch Wheel
- etrailer
more information >
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Chris R.
2/3/2026
Hey Ron, were you able to check the bearing numbers and seal dimensions on your axle? Once you have that info, I can help confirm which hub will fit best. Your update could make it easier for others sorting out similar axle setups.