Heat exchanger

A heat exchanger comprising:

• a core portion including an inlet tank portion and an outlet tank portion in which spaces in which cooling water is stored and flows are formed and a plurality of tubes each having one end connected to the inlet tank portion and the other end connected to the outlet tank portion to form a flow passage through which the cooling water flows;
• an upper reinforcing plate coupled to an upper end of the core portion, having an inlet pipe and an outlet pipe formed to communicate with the inlet tank portion and the outlet tank portion, respectively, and having coupling portions formed for fixation;
• a lower reinforcing plate coupled to a lower end of the core portion;
• a first support portion coupled to one side of the lower reinforcing plate in a length direction on a lower surface of the lower reinforcing plate and absorbing vibrations;
• and
• a second support portion coupled to the other side of the lower reinforcing plate in the length direction on a lower surface of the lower reinforcing plate and absorbing vibrations.