I don't know if it's the same size your looking for or not but I have some extras. I had a hard time finding them too for the factory size pcv so when I did find them I ordered extras. What are the dimensions of the one your looking for
Mine is 3/4" ID, 1" OD.
The top lip needs to extend out over the oil fill hole cutouts though (where the tangs of the twist on cap goes). Ive read those are 1.22".
Ill keep searching. Honestly surprised this is such a chore.
