HIPA Carburetor + Gasket Primer Fuel Air Filter Spark Plug for STIHL FS38 FS45 FS46 FS55 KM55 HL45 Trimmer Fitment models: STIHL FS38 FS45 FS46 FS55 KM55 HL45 trimmer Package include: 1 carburetor + 1 spark plug + 1 primer bulb + 1 fuel filter + 2 mounting gasket