Casement window crank

Home Owner from Green Bay

Aug 18, 2026 12:43 pm

Crank base has number 40372. Window installed 1988. Cranks open, but opposite direction to close. What replacement parts for crank hardware and cover?

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3 Replies

Home Owner from Green Bay

Aug 19, 2026 8:58 pm

Crank opens window, but does not turn in opposite direction to close window. Need to replace.

Casey from SWISCO

Aug 21, 2026 2:41 pm

Hello,

Your operator resembles the 39-031, depending on how the specifications below compare. We also offer the 39-107FK handle and cover kit for this assembly. Take a look, and thanks for posting!

Dimensions for 39-031