for Harley-Davidson Chrome Flush Pop-Up Reservoir Gas Cap Vented Fuel Tank Screw

For Harley Davidson (all models with single screw in gas cap). 1、Motorcycle Flush Pop-Up Gas Cap. For Harley Sportster XL 1992+（Excluding Sportster S/ Nightster）. For Harley Dyna 1992-2017（ Excluding 2004-2017 FXD and FXDX/2005-2006 FXDC and /2007 FXDSE）.