Here's what I found from the "look up box" above. Does this look like what you're missing?
Screenshot 2024-06-02 at 16-19-26 Lookup Parts Via Diagram Cub Cadet US.jpg
I'm not sure of your model number but this is where the above diagram came from.
ZT1-42 KH (17AREACS010) (2020) (ULTIMA ZT1)Assemblies for ZT1-42 KH (17AREACS010) (2020) (ULTIMA ZT1)Clutch Keeper