Can 4-Bolt Trailer Hub Be Upgraded to 5-Bolt Trailer Hub
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
- 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 >
Continue Researching
- Article: Trailer Tire Sizing
- Q&A: What Is the Difference Between a BTR and BT8 Spindle
- Q&A: What is Difference Between Trailer Bearings L44649 vs L44643
- Q&A: Do You Have an Axle for My Smoker Hub Face 52" and Spring Center 43", 5 on 4 1/2" Bolt Pattern?
- Q&A: How to Tell if Trailer has a BT8 or BTR Spindle Installed
- Q&A: What Is The Overall Length Of The CE Smith Trailer Axle Beam CES84XR?
- Q&A: Do I Need to Have a Castle Nut or Cotter Pin to Keep Spindle Nut From Backing Off
- Article: Replacing the Bearing, Races and Seals on a Trailer Hub
- Q&A: Options For Adding Regular 5 On 4-1/2" Hubs To A 1950s Boat Trailer
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Article: Best Boat Trailer Jacks
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: Trailer Wiring Diagrams
- Article: What are the Common Types of Propane Fittings Used on RVs?