Simonton Window Parts

Thanks for posting. Your Simonton shoe is no longer made but take a look at our 15-192 as a replacement for your current shoe. I am confident that this will work well as a replacement. You will need to trim the front aligners (nubs) off the 15-192 for it to work or it will be too thick to fit in the track.

detail of 15-192

Since you have a dual support, you'll need to use the S170 coiled springs for the bottom and the S171 springs stacked on top of that bottom coil. To confirm the spring strength you need, you'll need to look for the stamps/markings on the metal coils. If there are no stamps/markings, you will need to obtain the exact weight of your window and divide it by the number of coils.

You will also need either the 15-156 lance spring cover (wide) or the 15-158 lance spring cover (narrow). These are both compatible with the 15-157 Certainteed Balance Drum. Take a look at the diagrams below to confirm which would work best for you.

Measurements for 15-156:

Detail of 15-156

Measurements for 15-185:

Detail of 15-185