Replacement Window Balance/Coil

A quick learner from Charlotte North Carolina says:
February 6, 2023
My vinyl replacement windows are probably 20 years old but by in large in good shape. I have noticed that when cleaning several of the balance/coil parts have started to break. The metal cylinder component part has broke and the window pin doesn't stay in. I have looked at many sites and can't figure out how to get an equivalent replacement. I need 6-8 to completely refresh all of my windows. As you know the windows still will work without a balance/coil on one side but when you open is when you need it. Can you help me find a replacement? If you so you are my hero!!!
Bill
Thumbnail of the uploaded file named Window Pic #1.jpg
Thumbnail of the uploaded file named Window Pic #2.jpg
A quick learner from Charlotte North Carolina says:
February 6, 2023
Notice in pic #2 I tried to show you that the weight classification is a "C". I weighed one window sash and it is about 10.5 lbs. Thanks
Bill
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Casey from SWISCO responded:
February 7, 2023

Hello,

It looks like the cams in your pivot shoe are breaking, which happens when they get old and brittle. Your pivot shoe isn't made anymore but the 15-177 can replace it with no adaptation

If your coil springs are still in good condition they can be reused. If not, you would use two S152-5 coils on each side to support a 10-1/2" pound window sash. Thanks for posting!
Coil Balance Shoe, Slate Blue
Coil Balance Shoe, Slate Blue
15-177
$3.47
5 lb Series 150 Coil Balance
5 lb Series 150 Coil Balance
S150-5
$6.55
Coil Bushing
Coil Bushing
15-143
$0.97
Coil Bushing Cap
Coil Bushing Cap
15-144
$0.70
Coil Support Barrel
Coil Support Barrel
15-145
$0.49
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