PURPOSE: To secure waterproofing and durability of a wire harness, etc., supplying electric power to a brush, with regard to an electric pump using a motor receiving power through the brush as its drive source, by storing the wire harness and the like in a case or housing.

CONSTITUTION: A rotor 22, a magnet 25, and a commutator and a brush 24 supplying electric power to the rotor 22 are stored inside a case 26 and a motor unit 20 giving rotational torque to a shaft 21 is composed. The shaft 21 is fixed on a housing 11 through rotational bearings 61, 62. A distribution unit 40 provided with a connector 42 and the like are formed on the opposite side of the motor unit 20 with the rotational bearing 61 in between. The brush 24 of the motor unit 20 is arranged between the rotor 22 and the rotational bearing 61 and the terminals of the brush 24 and the connector 42 are connected together through leads 27, 28 and a wire harness 28.