ID 3 parts of the mechanism that holds up the window

A quick learner from Fishers, IN says:
1. double-wheel pulley (4813, 4812, 4800) that attaches to the spring (4803). Spring is fine
2. square bar (4813 and 4812)on bottom of the window that keeps bottom of window in the track and rotates the window-lift lock. broken at the hole where the screw holds in place.
3. window-lift lock

(1/2 copper pipe in photo for reference)
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Bob from SWISCO responded:

Hello, and thanks for contacting SWISCO. Okay, a few things to sort out here. 

1) The double-wheel pulley is a tilt channel balance. Specifically it looks like it matches our Series 770. You will have to replace the entire assembly--the pulley, spring, and metal channel are not sold or dealt with separately. 

2) The window-lift lock is a pivot shoe and looks similar to our 15-178. To be sure though, you are going to want to remove your pivot shoe from the window frame and measure it's width and thickness. Make sure it matches the dimensions of your replacement part. 

3) We have no exact match from what we can glean of your pivot bar. But our 26-316 may still work for you. It functions with the 15-178. It will just be a question of the dimensions matching your old part. Take a look and see what you think.     

How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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How to Remove a Pivot Shoe (Cutout Method)
How to Remove a Pivot Shoe (Cutout Method)
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How to remove window pivot shoes
How to remove window pivot shoes
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Anatomy of a tilt window
Anatomy of a tilt window
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How to replace a window pivot bar
How to replace a window pivot bar
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Removing Rusted Pivot Bars
Removing Rusted Pivot Bars
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