Nos Gas Cap Seal Gasket Cork Knucklehead Panhead 45 Ul Eaton Tank Oem 3509-36 PkBrand New Nos Harley Pack Of 5 Gas Cap Corks.. they Are Old.. May Be Brittle, No Longer Come With Package, Just Have Loose Ones. Genuine Harley thier brittle, not sure if they can be used or not told it you boil them they weill come back?? look it up no returns! marking as used due to ebays policies. Harley Part # 3509 36