craftsman dyt 4000 bob vila compatability

It will take a 24441 blower and a 24837 plow blade. The 21 HP twin is a strong engine which should have no problem with either attachment. It also has cast iron front axles so the weight shouldn't be a problem either. I would suggest chains.
http://c.shld.net/assets/misc/2012Fit-up.pdf

A snowblower is easier on the transmission than a plow blade. Look for a Berco snow blower if you can find one. Worlds of difference in quality over the Agrifab model that Sears markets in the US. I got my Berco off of a Husqvarna GT (made in the same factory as the dyt 4000). It bolted up with almost no modification.