Stacked-Plate Heat Exchanger, in Particular Charge-Air Cooler

The invention relates to a stacked-plate heat exchanger, in particular a charge-air cooler, having a plurality of elongate plates ( 1 - 3;21 - 23;51 - 53 ) which are stacked on top of one another and are connected, in particular soldered, to one another, which plates ( 1 - 3;21 - 23;51 - 53 ) delimit a cavity ( 55 - 57 ) for conducting a medium to be cooled, for example charge air, in the longitudinal direction of the plates, and a further cavity ( 63 - 65 ) for conducting a coolant, wherein the plates ( 1 - 3;21 - 23;51 - 53 ) have in each case one inlet port and one outlet port for the medium which is to be cooled. In order to provide a stacked-plate heat exchanger which can be produced cost-effectively and has a long service life even at high temperatures, according to the invention, at least one coolant port ( 14 - 16 ) extends partially around a port ( 12 ) for the medium to be cooled.