A hose clamp for forming an air tight seal between a hose and a connector projecting from a housing of an air cooler of a vehicle. The hose clamp including a band which encircles the hose at a location where the hose and the connector overlap and has an adjustable diameter. The hose clamp positioned by a wrap-around hose clamp positioner. The wrap-around hose clamp positioner including flat portions, which contact the outer surface of the hose, and a raised portion where the band passes through a space of the raised portion. The wrap-around hose clamp positioner further including a wrap-around portion and a crimp tab, the wrap-around portion extending over a lip edge of the hose such that the crimp tab pierces through at least the inner surface of the hose.