There is a hose that connects to the coolant reservoir, the water pump, and another to join to the radiator hose. The hose was deteriorating so it would leak the coolant, and therefore the car would run hot. I went to the local auto part stores they didn't have it, one of the stores had to call ford to see how I could get the part. Ford said it's a dealer part only, the company said they would charge me over $300 to export it in.....hah! I went to an export company that brought it in for $240. I received the part within a week and had it installed the next day...