Valve cover grommets

I had to replace one of them in my magnum 318 and had the awfulest time finding one. I ended up getting one thru the local dodge place it was a mopar part that none of the local parts stores carried. I found all sorts but either the center hole was to big or the od was to small nothing fit it. I cant remember the part number now. But it wasnt the Pcv valve side it was the other one on the drivers side. It went back to the keg. IIRC