Replacement Hubs for 2017 Grand Design Momentum 350M
Updated 02/25/2026 | Published 01/15/2026
Products Featured in This Question
Question:
Have a 2017 grand design 350 m - 7K axles lippert axle. Looking to replace hub and hub bearings.and seals .
asked by: Michael S
Expert Reply:
Hey Michael, welcome back! The Easy Grease Trailer Hub and Drum Assembly for 7K Axles # AKHD-865-7-1-EZ-K you were looking at will fit your axle. However, there are two things you need to check which are the wheel studs and the grease seal. This has 9/16" wheel studs and a grease seal with an inner diameter (ID) of 2.25".
If you find you have 1/2" wheels studs you need the # AKHD-865-7-2-EZ-K instead. If your grease seals have an ID of 2.125" you will need to swap them out for # RG06-090. If you can give me the serial number off of your axle tag I can figure out which grease seal you need through Lippert. They might have the stud size as well, or you could measure if you want.
Did you ever end up getting the Gen-Y pin box?
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Product Page this Question was Asked From
Easy Grease Trailer Hub and Drum Assembly for 7K Axles - 12" - 8 on 6-1/2 - Pre-Greased
- Trailer Hubs and Drums
- Hub with Drum
- EZ Lube
- Pre-Greased
- 25580 / 14125A
- Standard Grade
- For 7000 lbs Axles
- 9/16 Inch Stud
- 8 on 6-1/2 Inch
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- etrailer
more information >
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Robin H.
2/10/2026
Hey Michael, how did things go with the Easy Grease hub and drum assembly for your 7K axles? Were the wheel studs and grease seals the sizes you expected? Your update could make it easier for others working on similar Lippert axles.