HIPA Carburetor with Primer Bulb Tune Up Kit for STIHL FS87 FS90 FS100 FS110 HL100 HL90 Trimmer Replacement manufacturer part number: 4180 120 0604 Fits STIHL FS87 FS90 FS100 FS110 string trimmer STIHL HL90 HL100 hedge trimmer Package include: 1 carburetor + 1 primer bulb + 1 air filter + 1 fuel filter + 1 spark plug + 2 gasket