Simonton Parts
Thanks for reaching out! This shoe can be replaced with the 17/32" thick 15-199 Pivot Shoe. I am certain it is an exact match, but be sure to remove it from the window track and compare the dimension to confirm.
The compatible pivot bar is the 26-378.
You'll also want to be sure check the coils to see if they might need to be replaced as well. This shoe is compatible with either the 1/2" wide Series 160 Coil Balance or 3/8" wide Series 165 Coil Balance.
To confirm the correct coil replacements, you'll need to confirm the width of the soil spring and the stamp on the metal. The stamp will tell you the amount of weight the coil should be able to support.
Take a look at the video tutorials below, for reference.