Crank replacement

Quick Learner from Massachusetts

Jul 31, 2026 3:26 pm

Hi. We have a few windows that need new cranks/hardware. There is a number 40577 that I can see on one picture. They are not removed yet so that is what I have for now. Please let me know what else you need and I can figure it out. thank you!

3 user uploaded images

2 Replies

Casey from SWISCO

Aug 6, 2026 9:28 am

Hello,

Your operator is similar to the 39-027E. We also offer the 39-028E opposite-handed version and the 39-114L handle. Review the specifications below to confirm if it could work as a replacement. Thanks for posting!

Dimensions for 39-027e