A heat exchanger for a motor vehicle includes a seal and a core. The core includes a first groove formed in a first side and a second groove formed in an opposing second side. The first groove and the second groove are each configured to receive a portion of the seal to secure the seal to the core. The seal includes a cross member and a pair of uprights extending from opposing ends of the cross member, wherein the cross member and the uprights each include a sealing element. The uprights further include a rail extending from the upright and configured to be received in the groove of the core. The core further includes an integrated shear panel formed at opposing ends thereof.