Crank Assembly Parts for 2005 Milgard Casement Window

The first photo is the crank assembly (missing handle) on the right side of the window. It is no longer working and needs a handle. I need both parts. The handle on the opposite side of the window (second photo) is marked with P4601. The 3rd photo is the crank arms connected between the assembly and the window casing on the left side - for reference. I am unable to open the covers on either side of the window. Can you help identify the parts needed for the right side? Thank you!