Heavy Bifold door track

A home owner from USA says:
I need to replace a track for a very heavy 72" bi-fold closet door. I believe the track that the installer used, was not meant for a solid wood door and became bent. It would no longer hold onto the round head. I was looking at: 72" Bifold Track, 4 Door (7/16" pin)
Product Code: 23-456

which looks like it would work and be a much better quality. Looking at my photos are you able to tell if that's correct, and do I also need to replace the other parts in order for everything to function together? Thanks!
User submitted photos of a bi-fold door hardware.
Profile picture of Paul
Paul from SWISCO responded:
The top fittings you show me look like our 23-112 top pivot and 23-114 top guide roller. They are used on our 23-512 track, though, and won't work in our 23-456. To use the 23-456, you would also need our 23-121 for the top pivot and top guide. The 23-512 track can take up to 30 pounds and 23-456 can take up to 35 pounds.
A quick learner from California says:
Thanks, that's very helpful. So I will go ahead and order the 23-456 and then I would need a total of (4) of the 23-121? Looks like the guide cap comes off so the same product is used as the top pivot?
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Paul from SWISCO responded:
For the 23-121, use the same pin with cap. There's no need to remove the cap.
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