Recommended Replacement for Dexter 8-448 Hubs
Updated 10/27/2025 | Published 03/24/2025
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Question:
Hi, I am looking for replacement hubs for my saltwater boat trailer. The existing hubs say this on the back “8-448 HT F 21A12 China” Do you know what replacements I should buy?
asked by: Andrew G
Expert Reply:
Hey Andrew, it looks like those are 2.5k axle hubs made by Dexter, so you can use the Dexter Trailer Idler Hub Assembly for 2,500-lb Axles # DX22XR as a replacement.
This kit includes the replacement hub, bearings, races, seals, and has the same 5 on 4 1/2 bolt pattern as your current ones.
If you need anything else, please feel free to drop a comment and let me know!
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- Tekonsha
more information >
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Lazer S.
10/27/2025
Hey Andrew, how did the Dexter idler hubs work out on your saltwater boat trailer? Your update could make it easier for the next person trying to match their old hubs.