Protecting your engine is one of the best ways to help ensure you get the most out of your outdoor power equipment purchase. Extend your engine life and help promote easy starting and smooth engine performance by replacing your spark plugs. When spark plugs become worn or dirty, the engine an be more difficult to start and not perform efficiently. Genuine Factory Parts help protect your outdoor power equipment by providing original equipment parts for DEWALT, CRAFTSMAN, 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.