A home owner from People's Republic of Austin,TX says:
November 24, 2016
I have an Alenco aluminum window and have replaced the spring mechanisms with new ones from Swisco. Now I need the upper black plastic part shown in the attached photo. It is 1" X1" in size. Please let me know if you carry this part. Thank you.
Paul from SWISCO responded:
November 29, 2016
Start by looking at our 18-174 and see if this is a good match. I would just make sure all our dimensions match up.