Genuine Ford Motorcraft FC1058 Gas Cap 6L2Z-9030-F Replacement Fuel Tank Cap for 2004-2007 Ford Explorer, Explorer Sport Trac, Five Hundred, Freestyle, Taurus | 2004-2007 Mercury Montego, Mountaineer, Sable. Genuine Ford part in the original unopened package. Ford part number 6L2Z-9030-F