Replacement wheels
#50520031 (6 Top Wheels)
#50421032 (8 top wheels)
I think it is 23-222C or 23-222B
Please Help As Soon As Possible
Hello there. While it's possible either could work to replace your old roller, the 23-222C is more versatile and what Stanley recommends in most cases. I think this is your best bet. Take a look and see what you think.
To remove and replace the 23-222C from the door, you will need to take the door out of the closet and place it on a stable surface. The 23-222C is usually hooked into the door frame instead of screwed on. To remove the rollers, use a pair of needle nose pliers to gently--but firmly--work them out. They're going to be really in there so you may have to wrestle it a little. Reverse this process to install the new rollers. There's no real science to it, it just takes patience and a solid grip.