Cooling module

A cooling module comprising:

• a first radiator;
• and
• a second radiator stacked and disposed at an upstream side of the first radiator based on a flow direction of cooling air,
• wherein the first radiator comprises:
• a main inlet port connected to an engine so that a coolant is introduced through the main inlet port;
• a main discharge port through which the coolant is discharged;
• an auxiliary discharge port connected to a third radiator, which is installed at a position that does not overlap the first radiator and the second radiator in the flow direction of the cooling air, so that the coolant is discharged through the auxiliary discharge port;
• an auxiliary inlet port through which the coolant is introduced;
• a pair of header tanks disposed to be spaced apart from each other in a longitudinal direction;
• and
• a plurality of tubes each having two opposite ends connected to the pair of header tanks,
• wherein the auxiliary discharge port and the auxiliary inlet port each extend toward the third radiator, and
• wherein the main inlet port and the auxiliary discharge port are formed in any one of the pair of header tanks, and the main discharge port and the auxiliary inlet port are formed in the other header tank.