Sierra Window Concept Vinyl window part

A home owner from Lake Forest, CA says:

My vinyl window was difficult to shut and when I got it shut the part on the side broke
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Please see our S140-18. This looks similar to your balance system. However, you may want to check to make sure your pivot is compatible to the center metal cam of our balance's shoe. The S140-18 is compatible with the 26-398 and 26-405.
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