much more info needed.
Are you a business and have a business number. A BN helps as CBSA is easy to deal with if you are a business.
also the tractor if its not on the ECL than it shouldn't be a problem. If on the controlled list you will need of Gov't export permit. Chances are it will not be on this list if an Ag. tractor but proof not on the list is a good step to make.
If you are green to importing from Canada then I would suggest hiring a broker and they make it very easy.