Heat exchanger with a plastic header plate

An automotive heat exchanger comprising:

• a heat exchanger core including a header part with a plurality of heat transfer tubes and a header tank with an opening for receiving end portions of the heat transfer tubes;
• and
• a plastic header plate secured with the header tank, the header plate including a plurality of apertures extending through the plate that enable fluid passage, each aperture including a cutout portion for receiving an end of a heat transfer tube, the cutout portion having a complimentary shape to mate with the end of the heat transfer tube, and a seal in the cutout portion for individually sealing the end of each heat transfer tube with the header plate;
• the header tank further comprises a mechanism for coupling with the header plate, the coupling mechanism including a plurality of latches mating with the cutouts.