I just replaced the PVC hose on mine and didn't want to buy the over priced ford part so I took a gamble and bought the dorman part 46031. It says that it only fits up to 2000 but it worked fine on my 2002. I too junked the OE clamp and used a regular hose clamp on the new one.
2002 Ford Focus ZX5 2.0 Zetec MTX
2003 Ford Escape 3.0 Duratec