bifold door hardware

A professional from Dennis Massachusetts says:
Hello, we are trying to identify these parts for the top of a bifold door.
Thumbnail of the uploaded file named 55661.jpeg
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Casey from SWISCO responded:

Hi, thanks for the inquiry. We believe you have a Johnson closest door set. if this is the case, you can use our 23-148 track stop and 23-158 tricycle trolley. Look it over and let us know what you think.

23-148 : Track Stop
Track Stop
23-158 : Tricycle Trolley
Tricycle Trolley
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