Need parts identified and replaced

I'm not sure what to recommend based on this information. There are three that come to mind: our 55-301, 55-310 and 55-303. These are used for some Andersen windows, but are used for different glass thicknesses. However, your windows look like there are other issues, like the frame itself at the bottom and the sash at the corner. Even assuming one of our Andersen glazings would work, I'm not sure that will help. You might want to contact an Andersen dealer in your area to see if they can supply you with a new sash or if they have any easier solution for the cracked vinyl at the main frame sill.