Premium OEM Spec Water Pump - Zetec
00-04 Focus with 2.0 Zetec DOHC I4
   Installing our underdrive pullies?  Maybe our thermostat housing? Now would be a great time to replace your water pump, either out of preventative maintenance or to replace a bad one.  Vendor can vary - but we only supply quality components - Gates, Litens, Dayco, etc - no junk.    
A complete job would consist of the smooth idler, the accessory belt tensioner and water pump.