I don't know where you live, I assume America? But, try searching on Stanley's website, on ebay, on Amazon. Use the model number to pin-point the exact part you need. Once you know what you need, visit local super hardware/DIY stores in case they have the part in stock, at a cheaper price.
The Bradford Exchange
You can find snowblower parts at WalMart. WalMart is a store that sells many items online. You can purchase snowblower parts from WalMart and they will have it delivered to the store for free or to your home for a nominal cost.
There are many websites where one can find replacement Craftsman Snowblower parts. One such website is www.repairclinic.com/Craftsman-Snowblower-Parts, though for such a popular item, you will also find replacement parts at your local hardware store.
You can find parts for a toro snowblower at WalMart. WalMart is a store that sells many items online. You can purchase a snowblower and parts from WalMart and they will have it delivered to the store for free or to your home for a nominal cost.
One can purchase Craftsman snowblower parts from stores which carry Craftsman snowblowers. Sears is one example. They may have to order the parts in as required. One could also check the Craftsman website to see if parts can be ordered.
There are many places one can purchase "Toro Snowblower Parts." In addition to the official Toro website, one might also search the auction website, eBay.
One can purchase Murray Snowblower parts from a number of places. One place would be their company website. Another would be through Sears, which also sells Murray products.
It depends on what kind of parts you want. When searching on the Lowes site, I see the self-propelled belt: http://www.lowes.com/pd_230960-442-490-500-0017_4294857393__?catalogId=10051&productId=1235877&UserSearch=toro+snowblower+parts&Ntt=toro+snowblower+parts&N=4294857393&identifier=Outdoor+Power+Equipment+Parts&langId=-1&storeId=10151&searchQueryType=1. However, I didn't see a large amount of separate parts for sale other than a spool and a belt. Here is the page http://www.lowes.com/SearchCatalogDisplay?Ntt=toro+snowblower+parts&storeId=10151&N=0&langId=-1&catalogId=10051.
MTD offers these 3 products for snowblower parts, the Auger Assembly Complete for $112. and the Spiral Crescent for $10. MTD also offers the Nut, Flange Lock for alittle over $2.00.
Buy the complete one on Toronto Kijiji & use the parts that you need
You can order the parts..there is a powerland parts supplier in Encino Cal..the part you need will cost about $50.00 1-888-807-6660
50 to 1 (parts)
The correct ratio for that particular snowblower engine is 50 parts fuel to 1 part two-stroke engine oil.