Replacement casement operator cover and crank handle

Contractor from San Rafael, CA

May 12, 2026 2:36 pm

I need two replacement White Truth operator covers and ideally folding crank handles for a pair of older Anderson windows. The 39 - 107FK kit looks correct. I measured 4 7/8" width - see picture. I can pull operator tomorrow if needed to see if there is a model number stamped on them.

Thanks! David

1 user uploaded image

4 Replies

Bob from SWISCO

May 16, 2026 5:09 pm

Hey David. Yes, I'm pretty confident the 39-107FK will fit your operator. It is meant to fit a centered, 11/32" diameter spline. Look it over and double-check to be safe. Let us know if you have further questions.

Contractor from San Rafael, CA

May 27, 2026 2:05 pm

Hi Bob, I just saw your reply. That's good news. I was communicating with Jacob D via email and he said I needed to remove the operator so I went ahead and did that - see pictures. Part # 30830. Canadian patent # 350432. US patent # not legible due to corrosion. Outside diameter of spline is 11/32. I'd like to order two of the 39-107FK kits if you still think it's a match. Thanks!

3 user uploaded images

Bob from SWISCO

May 28, 2026 2:49 pm

Hi again. Yes, the 39-107FK should fit this operator. You can order this right through the online store. Let us know if you have further questions!