You are correct about the number. It should be 966 41 60-01. The installation manual has the extra zero in the model number. Must be a mistake. In any case, the link you sent took me to the parts list I need. It is made by Agri-Fab. Thanks for the quick reply.
Thank you for your response. I am looking for the 42" snow thrower parts list. I'm specifically in need of the #40 chain and both sprockets that drive the second stage thrower. The number on the blower is 966 41 60-001. Thanks again for your help.