A-S 3937

It's hard to say what your part is without seeing it. Previous customers with the same part number as you have shown us a discontinued shower door roller. We have recommended two things:

1. If the bracket is in good shape, replace just the wheel with our 10-100.
2. If the bracket is in poor shape, you may be able to make the 10-152 work.

However, without seeing, I am unsure. You can take a look at the measurements of these parts to decide for yourself.