AIRWOLF W-2003 AIR / OIL SEPARATOR GASKET

Are you sure that the part number of this gasket is correct ? As per the manufacturer the part number should be W2003. I ask this question as I’ve ordered this part and received a rubber gasket instead of a cork one. On the picture a gasket made from cork is shown. The rubber gasket is so flexible that it will not stay in position so I re-installed the old cork gasket until Ive found the correct one.