Abstract: A water pump housing embodies a construction to support the casing of a driven pump at an elevation that is higher by about 5 inches as compared with the support size established by a conventional water pump housing. The chamber walls forming an impeller chamber extend from a pump-mounting flange section. Two diverging leg sections extend in a generally radial direction from the impeller chamber and each leg section has an internal duct for the flow of a coolant medium. The leg sections each has a flanged-housing support section with a cavity therein communicating with a cavity in the engine block for the flow of a coolant medium. The area between the leg sections is open to expose the engine block for access to the timing case cover without the need to remove the water pump housing.