Does anybody make a replacement gasket for the C100 connector to firewall on the inside of the firewall?

 

I just made my own out of a sheet of dense water proof foam I got off Amazon

 

Thanks, I also need a new gasket on the harness connector on the passenger side pillar for the main harness to the computers. So, using your suggestion I searched on Amazon and ordered two different rolls of neoprene closed cell foam. They should be here by early next week and I will see if they have the right durometer and thickness to work as the gaskets. I ordered 1/8 inch thick material.