A cooling fan module for an internal combustion engine of a vehicle, comprising a housing adapted to engage a radiator of the vehicle and forming a cowling, a fan located within the cowling for generating a flow of air through the cowling, a motor supported by the housing and driving the fan, wherein the motor is a Permanent Magnet Direct Current, PMDC, motor with a concentrated winding and further comprises: a stator housing accommodating a permanent magnet stator having 2n stator poles; a rotor, rotatably mounted confronting the stator, the rotor comprising a shaft, a rotor core fitted to the shaft, a commutator fitted to the shaft adjacent one end of the rotor core, windings wound about teeth of the rotor core and electrically connected to segments of the commutator; and brush gear comprising a plurality of brushes in sliding contact with the commutator for transferring electrical power to the windings, wherein the rotor core has m rotor teeth and the rotor windings has 2m coils, each coil being wound about a respective single one of the rotor teeth and each rotor tooth supporting two of said coils, and the commutator has 2m segments with each coil being connected to a respective pair of adjacent commutator segments and each segment being respectively electrically connected to two of the coils, and wherein n is an integer greater than 2 and less than 10, and m is equal to 3n, and characterized in that a first coil of the windings on a first tooth of the rotor core is connected via one of the commutator segments at one of its ends to a second coil of the windings on a second tooth of the rotor core; the second tooth is positioned adjacent to the first tooth in one circumferential direction; the other end of the first coil is connected via another one of the commutator segments to a third coil of the windings on a third tooth of the rotor core; the third tooth is spaced away from the first tooth by one tooth; the third tooth is adjacent to the second tooth in the same circumferential direction, thus, the first, second and third teeth are following each other in clockwise or anti-clockwise direction of the rotor. a stator housing accommodating a permanent magnet stator having 2n stator poles; a rotor, rotatably mounted confronting the stator, the rotor comprising a shaft, a rotor core fitted to the shaft, a commutator fitted to the shaft adjacent one end of the rotor core, windings wound about teeth of the rotor core and electrically connected to segments of the commutator; and brush gear comprising a plurality of brushes in sliding contact with the commutator for transferring electrical power to the windings, wherein the rotor core has m rotor teeth and the rotor windings has 2m coils, each coil being wound about a respective single one of the rotor teeth and each rotor tooth supporting two of said coils, and the commutator has 2m segments with each coil being connected to a respective pair of adjacent commutator segments and each segment being respectively electrically connected to two of the coils, and wherein n is an integer greater than 2 and less than 10, and m is equal to 3n, and characterized in that a first coil of the windings on a first tooth of the rotor core is connected via one of the commutator segments at one of its ends to a second coil of the windings on a second tooth of the rotor core; the second tooth is positioned adjacent to the first tooth in one circumferential direction; the other end of the first coil is connected via another one of the commutator segments to a third coil of the windings on a third tooth of the rotor core; the third tooth is spaced away from the first tooth by one tooth; the third tooth is adjacent to the second tooth in the same circumferential direction, thus, the first, second and third teeth are following each other in clockwise or anti-clockwise direction of the rotor.