All of our items are in stock and ready to ship! Genuine POLARIS OEM Fuel Tank Gas Cap with Gauge  Part Number: 2873628 Length from base stem to under gauge 6" From base to top of gauge 7 1/2 " Diameter of cap 55mm ID & 68mm OD Vehicle Fitment: 2004-2005 Polaris ATP 500 Free Shipping in the Continental United States.  Please contact with any questions.  Return for any reason if not satisfied. See Fitment Chart Above.