New! UK Made Triumph Petrol Gas Cap Cork Gasket. You will get the one gasket as pictured. Thought you had to buy a whole new gas cap just to get the cork washer? Well, now you don’t! Made of cork just like the originals! No more pesky leaks onto your gas tank! Inner diameter measures 1 3/4″ and the outside diameter measures 2 5/16″! Fits a wide range of Triumph, BSA, Norton, AJS & Matchless models equipped with the 2 1/2″ “Push & Turn” gas cap! Fits both original caps and new UK Made caps!*Please note that this cork washer is not a compatible replacement part with the new EMGO gas caps.*Made in the USAO.E.M Part number is 82-4048 and F4048