I need to replace the bifold hardware in these pictures

A quick learner from Florida says:
December 18, 2017
I found no information on these items.
From your experience, what do you think will replace all the hardware for the folding doors.

1 ea. folding door -- Master Bath Close is 29 7/8 inches wide.
1 ea. folding door -- Kitchen Pantry 35 5/8 inches wide.
1 ea. folding door -- Air handler closet 35 7/8 inches wide.
2 ea. folding doors -- Guest Bath closet double folding doors 48 inches wide.
1 ea. folding door -- Guest Bed Room closet 29 7/8 inches wide.
User submitted photos of bi-fold door hardware.
Profile picture of Paul
Paul from SWISCO responded:
December 27, 2017
If you are replacing both the tracks and the pins, then I recommend our 21-401 36" long track or 21-404 48" long track. You may need to cut down the new track to fit. For the pins, 21-002 bottom threaded pin and three 21-044 for both the top pivot pin and the two guide pins.
Bifold Track, 3' Opening
Bifold Track, 3' Opening
21-401
$8.71
Bifold Track, 4' Opening
Bifold Track, 4' Opening
21-404
$12.75
Bifold Door Pivot Pin, Benchmark
Bifold Door Pivot Pin, Benchmark
21-002
$4.20
Bifold Door Top Pivot and Guide Pin, Benchmark
Bifold Door Top Pivot and Guide Pin, Benchmark
21-044
$3.66
Bi-fold Door Repairs
Bi-fold Door Repairs
GUIDE
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