I reviewed the sliding patio door rollers on your website and don't see anything that comes close to matching this item. I'm reluctant to remove it from the door if there is no chance of replacing it.
The door is a Pella that was installed in 1982. With a clean track, it rolls freely but makes a clackety clack noise.
Emily from SWISCO responded:
October 5, 2022
Hi there!
The exposed part of your roller reminds me of our 81-098 but compare our dimensions with yours to confirm this matches up to your old hardware.