Amazon.com: ApplianPar Carburetor Carb Kit for Toro 3521 21 inch Snowthrower for Tecumseh 3.5 HP Engine : Patio, Lawn & Garden
Amazon.com: EPR Distribution Snow Blower Scraper Bar for Toro 21" Power Clear 421 621 721 108-4884 : Patio, Lawn & Garden
Amazon.com: Toro Replacement Scraper and Hardware Kit Fits 21 Inch Power Clear Single Stage Snowthrowers Part Number 133-5585P (replaces 38269) : Patio, Lawn & Garden