This is an OEM Briggs & Stratton Replacement Air Filter. The best way to avoid possible costly service problems would be to perform an annual small engine tune-up. Your outdoor power equipment’s air filter plays a major role in the performance of your machine. The air filter should be changed seasonally or as often as needed in a dirty environment. Air filter 593260 is a direct replacement that Briggs & Stratton created to keep your small engine performing in pristine condition. Air Filter prevents dirt and debris from entering your small air-cooled engine.