Sash guide?

A quick learner from Santa Rosa, California says:
August 20, 2018
In taking the window out to replace a broken balancer, I discovered these 2 broken pieces affixed to the window that also need replacing. One of them seems to have M513 stamped on it. Are these sash guides?
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Tom from SWISCO responded:
August 27, 2018

At first glance, your top sash guide looks similar in design to our 18-188. I'm just not sure about your dimensions. Look over our measurements and let me know what you think.
A home owner from Auburn ,Washington says:
August 8, 2020
Did they work for this other guy?
5/8" Top Sash Guide
5/8" Top Sash Guide
18-188
$1.44
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