How to Find Replacement Bearings and Seals for a 1979 Airstream Tradewind Trailer
Updated 03/30/2026 | Published 03/24/2026
Question:
I have had good luck with you folks in the past. So heres my challenge for you... I need replacement wheel bearings and seals for my 1979 Airstream 25 ft Tradewind model travel trailer. Do you have the sets? Thanks!
asked by: Jon C
Expert Reply:
I am sure we do Jon and welcome back! I am going to need some part numbers or measurements from you to get you the correct kit. There's no database that will show what size the spindles are on your 1979 Airstream Tradewind trailer.
What you'll need to do is pull one of the hubs and look at the two bearings and the grease seal. They should have numbers stamped into the sides of them. I'll need those part numbers to identify your spindle size which will tell me what bearing kit you need.
If they do not have numbers stamped into the side you'll need to measure your spindles using a digital caliper like item # PTW80157. I'll need the B, C, and D dimensions shown in the diagram below.
How long have you had your Airstream trailer?
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Jon C.
3/29/2026
Thanks for your reply Jarred. Have pulled the hubs on one side and cleaned them. They are Timkens so I now know what to order if I have to replace them. Some day I will be ordering replacement electric brake sets from you. But for now I have inspected them and repaired and adjusted them. Jon