HIPA Carburetor with Gasket Spark Plug Fuel Filter for STIHL SR320 SR340 SR380 SR400 SR420 BR320 BR340 BR380 BR400 BR420 Backpack Blower Sprayer HD-4A HD-4B HD-13B New high quality carburetor assy Replace manufacturer part number: 4203 120 0601, 4203 120 0603, 4203 120 0605, 4203 120 0607 Fitment models: STIHL SR320 SR340 SR380 SR400 SR420 BR320 BR340 BR380 BR400 BR420 backpack blower sprayer HD-4A HD-4B HD-13B Package include: 1 carburetor, 2 mounting gasket, 1 spark plug, 1 fuel filter