Window crank : SWISCO.com

Home Owner from Pontiac

Sep 8, 2025 3:38 pm

Problems finding the right relacement crank to attach here. One purchased has the little circle at the end but it's not cooperating. My original had to be almost drilled off. Any suggestions?

4 user uploaded images

4 Replies

Jasmine from SWISCO

Sep 15, 2025 4:13 pm

Your window operator appears to be a Roto brand operator. To determine its exact replacement, I'll need to see a photo of the entire operator to identify the correct replacement.

Please let me know if you have any questions!

Home Owner from Pontiac

Sep 15, 2025 5:19 pm

The other shot...

1 user uploaded image

Jasmine from SWISCO

Sep 16, 2025 10:51 am

Your window operator can be replaced with the 39-400 Roto Single Arm Operator; its opposite handed version is the 39-399. It is used with the 39-541 Roto Casement Track slider. To determine if this is the correct replacement, carefully review and compare the dimensions below.

Both operators are compatible with the 39-232 Roto Folding Crank Handle.

Alternate image for 39-400