Window coil spring

A quick learner from USA says:
Im not certain what the part is. We moved to this house in july. Windows are about 15-20yrs old and tilt in.
Thumbnail of the uploaded file named Pivot Shoe Casing
Thumbnail of the uploaded file named Coil Balance Shoe
Thumbnail of the uploaded file named Balance Cover
Thumbnail of the uploaded file named Coil Balance Support
Thumbnail of the uploaded file named Simonton Balance Shoe
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Jasmine from SWISCO responded:

Thanks for reaching out to us! The part you are looking to replace is the coil balance pivot shoe. Yours appears to be an old Simonton shoe which is no longer made. The good news is we have two options that could possibly work to replace your existing hardware.

We typically suggest replacing this shoe with the 15-192 CertainTeed Pivot Shoe but you may need to shave down the aligners on the shoe to install it into the window track. We have received feedback from customers that shaving them down has not worked. That said, take a look over the dimensions to confirm that this shoe would be a fit.

detail of 15-192
detail of 15-192

This shoe is compatible with the Series 170 Coil Balance. To determine the correct spring for your assembly, you'll need to look for any stamps/markings on the metal. The compatible cover is likely to be 15-156 CertainTeed Lance Spring Cover used along with the 15-157 Balance Drum. Keep in mind, your existing pivot bar is not likely to be compatible with this replacement pivot shoe. If you are not sure, I'll need to see a photo of it as well.

We are now recommending the 15-259 Coil Balance Pivot Shoe and the Series 159 Coil Balance. You would also need to replace the pivot bar with the 26-083 since your existing pivot bar wouldn't be compatible with the 15-259 shoe. Take a look at the video below for a detailed explanation on this conversion.

Dimensions for 15-259
Dimensions for 15-259

SWISCO S170 and S171 Coil Balance Assembly
SWISCO S170 and S171 Coil Balance Assembly
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
How to replace a Simonton coil balance
How to replace a Simonton coil balance
VIDEO
WATCH >
Replacing the Simonton Coil Balance
Replacing the Simonton Coil Balance
GUIDE
READ >
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