There isn't one single name for the metal coolant line connecting to the water pump on a Dodge Durango. It's simply referred to as a
coolant line,
water pump inlet/outlet hose (depending on whether it's the input or output), or sometimes a
coolant pipe if it's a rigid metal line. The specific name would depend on the year and model of the Durango and the parts catalog used.
To find the correct part, you'll need to provide the year, engine size, and possibly even the VIN of your Durango to a parts supplier like a dealership or auto parts store.
