Poweka Air Filter Fuel Filter Spark Plug Parts for Stihl FS38 FS45 FS46 FS55 HS45 FC55 String Trimmer # 4140-124-2800 New high quality replacement air fuel filter kits Fits stihl FS38 FS45 FS46 FS55 HS45 FC55 Replacement OEM # 4140-124-2800 Package includes 1x air filter + 1 fuel filter + 1 spark plug