Heat exchanger for a cooling system, cooling system, and assembly

A motorcycle heat exchanger, comprising:

• a housing;
• a single supply connection via which a fluid is supplied to the motorcycle heat exchanger;
• a single return connection via which cooled fluid is discharged from the motorcycle heat exchanger;
• and
• a heat exchange region in which the fluid interacts with a medium in order to be cooled where the fluid discharges heat energy to the medium during operation of the motorcycle, wherein
• the single supply connection and the single return connection are arranged next to each other on a same side of the housing located in a lower corner region of the housing in an installation position of the motorcycle heat exchanger,
• the heat exchange region comprises a plurality of heat exchanger tubes through which the fluid flows from the same side to a side opposite the same side,
• a single discharge tube leads from the side opposite the same side to the single return connection, and
• a hydraulic diameter of the single discharge tube is equal to a hydraulic diameter of a sum of all heat exchanger tubes.