parts for my tilt in window

Hello,

It's tough to be sure based on a damaged part but it looks like you might need the S770-22 (22B) channel balances. Take a look and confirm the specifications and 22" channel length match your assembly. If so, we can supply your replacement balances but it will need to be a custom order since your balance uses a rivet at the top, which attaches to the 19-029 or 19-030 S-clips for installation. We would just need to confirm the number of balances you need, with the minimum being two. 

Close up view of the Series 770 balance bottom.

This balance is also commonly used with the 15-178 pivot shoe. You'll need to local an intact part to confirm that the width and thickness match the image below. Thank you! 

Dimensions for 15-178