Broken Plastic Part - Window Balance

A quick learner from Uniontown, Ohio says:
I have Simonton Windows in my home, which are approximately 14 years old. Each window has two plastic pieces that house the balance in the side of the window. The pieces are 4 inches long. They're all broken, so the windows won't open and close. Can you help identify this part and tell me where I can find replacements? Thanks!
User submitted photos of window hardware.
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Tom from SWISCO responded:
Thanks for posting!

Before we move forward, we would like to get the width of your coil spring.

Take a look at this video for removal tips!
A quick learner from Uniontown, Ohio says:
the coils are 3/8 of an inch wide.
User submitted a photo of a coil window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thank you. I recommend you start by looking at our 15-199. Does that look like a match? If so, see our Series 165 coil spring, as well as our 15-204 or 15-205 support brackets.
A quick learner from Uniontown, Ohio says:
I'll give them a try. Thank you for your help!
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