Silverline Window Broken Part Identification

Home Owner from Indiana
I have several 400 Series Silverline windows (crank) where the middle black piece that attaches the arms to the window are broken. It makes opening and closing the window difficult. The crank arms fall off the track. What is this black middle piece called?
2 user uploaded images
2 Replies
Bob
Bob from SWISCO
SWISCO
Expert

That nylon piece might be part of a bracket like our 39-340 or 39-424. These are used along with our 39-393, which looks fairly similar to yours. Please compare to confirm. 

Reply to Thread
Current Photos:
Related Products
Related Guides