Need help with window parts

First thing's first: that bottom foam seal for your sash looks like our 58-183. Compare carefully to check my identification. The pivot shoe is our 15-111 and your one-coil nylon cover is an old part that has been replaced by the 15-150S. The twin coil spring housing is our 15-150D, for your reference. They both use our Series 160 1/2" wide coil spring. You will need the number off the old springs. You only need to replace what is broken. See our video on coil springs on the right side of the page for more information.