FWIW this would not be a Motorcraft part, it is only a blue label part. However I did take this week off of work, so I could go in Monday and everything can be different.
There are a few different mounts depending on the model year, engine, and manual v automatic gearbox the vehicle is equipped with. When you call the dealer, have your VIN ready as they will ask for that over trusting what you tell them, nothing personal just business. Just tell the parts guy it is the motor mount on the fender and they will know what you mean. If it is a Duratech based engine, it will most likely be a 5S4Z-6038-CB. The other numbers escape me at the moment, but they will either have them in stock, or can get them overnight.