Replacing Simonton balance coil/shoe

A home owner from Michigan says:
March 13, 2024
Hello, I have both the balances on my Simonton window broken. I'm not sure what weight I need to buy, the coil has 409S stamped on it. If you could help recommend replacements that would be greatly appreciated. Thank you
Thumbnail of the uploaded file named spring in window.jpg
Thumbnail of the uploaded file named coil spring.jpg
Profile picture of Casey
Casey from SWISCO responded:
March 14, 2024

Hello,

Take a look at our conversion video shown below for Simonton windows that use this type of coil balance assembly. Review the full process below and let us know if you need anything else. Thank you. 
Coil Balance Pivot Shoe
Coil Balance Pivot Shoe
15-259
$2.57
3/4" Coil Single Support
3/4" Coil Single Support
15-255
$1.09
Pivot Bar, 2-1/2"
Pivot Bar, 2-1/2"
26-083
$1.12
9.5 lbs Series 159 Coil Balance
9.5 lbs Series 159 Coil Balance
S159-09
$6.27
How to replace a Simonton coil balance
How to replace a Simonton coil balance
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 >
Removing Rusted Pivot Bars
Removing Rusted Pivot Bars
VIDEO
WATCH >
Replacing the Simonton Coil Balance
Replacing the Simonton Coil Balance
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.