Abstract: An engine cooling fan (100) comprising a hub (102) and a plurality of blades (104) each of which extends away from the hub (102), wherein the hub (102) defines a rotation axis about which the hub (102) is adapted to rotate during operation; wherein each blade (104) defines an attachment part (108), an air moving part (106), and a center line extending in a longitudinal direction of the blade (104) between a tip end and a hub end of the blade; wherein at least a first zone of the center line extends in a direction transverse to a normal of the rotation axis of the hub (102). Moreover the present invention relates to a blade (104) for use in the fan (100) and a kit comprising the blade (104) and the fan (100).