replacement hinge for bifold door

Yep, your old hinge was made made to work on cabinets, not bifold doors. I've seen this hinge a few times in the past from other customers and it was always for a cabinet. Could your closet door have been custom made? 

Either way, your exact hinge isn't made anymore. We've never been able to find an exact match for it. Something like our 32-343 may be a viable substitute, but this is also made for a cabinet door. Your only choice may be to contact whoever made this door originally. It's definitely not standard.