To secure the coaxial condition of a motor output shaft and a pump impeller by reducing integration error in a fueling module for an engine provided with a fuel pump and an electric motor.

A stator 10 of the electric motor M is fixed to the periphery of a cylindrical motor support part 20 integrally formed with a pump housing 1, and the motor output shaft 16 is supported by the inner periphery of the stator. An outer housing 37 for housing the fuel pump P and the electric motor M to hold them and having a fuel outlet pipe 40 outside thereof is formed with a fuel chamber 41 for communicating a discharge port 3 of the fuel pump P with the fuel outlet pipe 40. A fuel filter F for filtering the fuel of the fuel chamber 41 is provided in the outer housing 37.