Patio sliding door roller

A quick learner from 12571 says:
Could you help me identify a replacement for the pictured roller? The wheel is marked Kilian Toronto CAN Syracuse NY. Thank you.
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Bob from SWISCO responded:

This roller reminds me of our 81-129 . Please compare your old roller to the dimensions below and see if you agree.

Alternate image for 81-129
Alternate image for 81-129
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