A fuel pump module is a component in a vehicle's fuel system that houses the electric fuel pump, fuel level sending unit, and other related components. It is typically located within the fuel tank.

The primary function of a fuel pump module is to draw fuel from the fuel tank and deliver it under pressure to the engine. The electric fuel pump is the heart of the module, and it works by converting electrical energy into mechanical energy to move the fuel. The fuel level-sending unit measures the amount of fuel in the tank and sends this information to the vehicle's computer.