HEAT EXCHANGER

An object of the present invention is to provide a heat exchanger that is structurally coupled to an endplate without a process of welding a connection member. To achieve the above-mentioned object, a heat exchanger according to the present invention may include a plurality of main plates each including a through-hole through which a heat exchange medium flows, and an outer wall formed at a periphery thereof, the plurality of main plates being stacked to constitute a heat exchanger core having a flow path formed therein, an endplate being in surface contact with the main plate disposed at an outermost side of the heat exchanger core, the endplate having one or more connection holes, and a connection member configured to be connected to an external component and at least partially inserted into the connection hole.