Replacement 5 on 4-1/2 Hub for a Trailer w/ a LM12749 Outer Bearing
Updated 10/30/2025 | Published 02/12/2025
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Question:
I have a trailer hub that has a L68149 inner bearing and a LM12749 outer bearing what size/type of hub is that. and does etrailer sell a complete hub kit to replace it that is 5 on 4.5 wheel spacing
asked by: Seth
Expert Reply:
Hey Seth, I am sorry but we have no hubs with any lug pattern that will work with your LM12749 outer bearing. That bearing is obsolete. The only solution I have for you is to replace your spindles with one like the item # TRU24FR so you'll be able to find a hub with modern use bearing sizes.
I have attached a diagram below that shows the dimensions of the #84 Spindle item # TRU24FR. If you could get some measurements off of your spindles I can match a replacement up as close as possible.
For a 5 on 4-1/2 hub that will fit a #84 spindle you'll want either the Easy Grease Trailer Idler Hub Assembly item # AKIHUB-545-35-EZ-K or the Galvanized item # AKIHUB-545-35-G-EZ-K if you've got a boat trailer.
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Product Page this Question was Asked From
Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Pre-Greased
- Trailer Hubs and Drums
- Idler Hub
- EZ Lube
- Pre-Greased
- L68149 / L44649
- Standard Grade
- For 3500 lbs Axles
- 1/2 Inch Stud
- 5 on 4-1/2 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
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Jerred H.
10/30/2025
Hey Seth, did you get a chance to measure your spindles to see if the #84 spindle was a close match? Once you confirmed that, were you able to move forward with one of the 5 on 4-1/2 hub assemblies? Your update could make it easier for others dealing with the same obsolete bearing issue.