Window Cranks for Casement Windows

I have need for replacement crank mechanisms for my casement windows. The brand is "Truth". The model (?) is Entry Gard. I've attached three photos. Please let me know if you might have these available. The issue in each of the four problem windows is seemingly about stripped gears. The brackets appear to be fine

Just adding information to earlier post. The windows are approximately 25" wide by 60" tall. Three of the four windows have the crank on the right side. One is on the left side.

Please let me know if you need additional information. Thank you for your help.