Thanks for posting. I'm afraid we'll need a little more blueprinting on your end to determine this awning operator's identity. We need to see it removed from the window so we can see the hole at the end of the extension arm. Dimensions such as the distance between the centers of the mounting holes are also key to identifying the proper replacement. Finally, if you need other parts, we'll need to see pictures of them, preferably removed from the window.
For awning operator removal and replacement, see the video below.