Don, not accusing you of anything, it was a thought since you mentioned no serial#. Unless you bought it on a street corner from a covered pickup at midnight, it is probably ok. A lot of contractors I know have to keep everything locked up tight and are afraid to leave anything on a jobsite. Table saws are a lot of trouble to haul back and forth all the time so they get left. We think a lot of stuff ends up in Mexico or points closeby. Leave a bobcat or backhoe on a trailer and it is easy pickens. If its not on a trailer, they have their own. Go figure.
Leave a load of plywood out and it may end up on someone else's house. The sears parts stores should be able to help you.