A tank and spout interface of a radiator of a motor vehicle having a tank part having an inner surface, an outer surface, a connecting part, a bottom portion, a first end, a second end, a first outer margin, and a second outer margin. The tank and spout interface has a connection sleeve disposed on the tank part and extending outwardly from the tank part having an inner surface integrally formed with the inner surface of the first outer margin of the tank part and an outer surface integrally formed with the outer surface of the tank part. A first entry riser and a second entry riser are disposed on opposing sides of the inner surface of the connection sleeve and a first internal riser and a second internal riser are disposed on the first outer margin of the tank part.