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Spindle Washer for Trailer Axle Spindle that is 1.06 inch in Diameter  

Updated 10/27/2025 | Published 03/07/2025

Question:

I have a long boat trailer with 1.06 inch straight spindles. I ordered the new hun from you all and it seems to fit, but the old hub did not have a washer between the castle nut and outer bearing. I do not see a washer on the website for an ID of 1.06. What’s the best route to take?

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Expert Reply:

Hey Blake, while your spindle may have a diameter of 1.06 inch where the bearings ride the threaded portion would still be 1 inch so for a replacement spindle washer you'd need the part # SW1000.

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Jameson C
Jameson C. profile picture

Jameson C.

10/27/2025

Hey Blake, did the 1-inch spindle washer end up fitting your trailer hub the way you needed? Knowing how it worked could help others sorting out similar spindle size questions.

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