Window tilt broken
Thanks for your post! This window balance can be replaced with either the 3/8" Series 900 or 5/8" Series 600 spiral balance, with a red tip. To determine the exact series and length, you'll need to confirm diameter of the balance as well as the length, excluding the colored tip.
There are a few different options we can recommend to replace the pivot bar. I suggest starting with the 26-040 and the 26-089. You'll need to find an undamaged pivot bar so that you can compare the dimensions and confirm if either of them is the correct match.
If you are looking for a replacement for the shoe, I'll need to know its width and thickness, written/typed out. I've included two tutorials below with instructions for how to remove/install them.