Protecting your engine is one of the best ways to help ensure you get the most out of your outdoor power equipment purchase. Air filters help prevent dirt and debris from getting into the engine, allowing it to function more efficiently. To help keep your engine operating at optimal performance, you should change your air filter every year. Genuine Factory Parts help protect your outdoor power equipment by providing original equipment parts for CUB CADET and TROY-BILT. You can have confidence knowing that our parts are designed for precise fit and optimal performance to keep you equipment running smoothly, season after season.