The invention relates to a pump unit comprising an electric motor, located in a stator housing (6), a terminal box being arranged on an axial face of the stator housing (6). the terminal box (12) comprises a tubular housing element (44) having a first axial face to which the axial face of the stator housing (6) is connected. The opposite second axial face (46) of the tubular housing element (44) is closed by at least one cover element (40) into which operating and/or display elements (38) are integrated. An electrical connecting element (42) is arranged on the outer periphery of the tubular housing element (44).