Include top cover gasket, jet needle E-ring and washer, throttle valve seal, pilot air O-ring, fuel joint O-ring, accelerator pump O-ring, needle valve O-ring, needle valve retainer screw, needle valve assembly, float bowl O-ring/gasket, overflow hose, float bowl screws, accelerator pump rod boot Genuine Mikuni parts properly replace worn or mistreated components for HSR42/45/48 carburetors Includes all the parts needed to rebuild HSR42/45 or HSR48 carburetors. HSR42/45 CARB REBLD KIT