ACDelco GM Original Equipment Fuel Pump and Fuel Sender Assemblies are GM- recommended replacements for your vehicle’s original components, and consist of a fuel level sender, an electric fuel pump, and a jet pump. The jet pump maintains a consistent fuel level inside the internal fuel pump reservoir. These assemblies may be equipped with quiet Generation 4 turbine pumps with integral strainer socks. These original equipment fuel pump and fuel sender assemblies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.