Looking for replacement parts for Weathercraft vinyl

A home owner from New Jersey says:
March 5, 2016
Our windows say Weathercraft 94, and they all have the same issue. Seems the coil has broken off. None of the Windows stay up, they slam shut.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
March 8, 2016
Please see our 15-140 shoe and Series 150 coil spring. I believe this hardware matches what you have now. If you need the other parts, look at our 15-143, 15-144 and 15-145.
Coil Balance Shoe
Coil Balance Shoe
15-140
$3.07
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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