Fuse block gasket?

[fordguy40]

Was hoping it wasn't the cowl seam and it doesn't appear to be. Spent the morning clearing out the cowl and fender drains with compressed air then running water into the area between the fender and cowl, just inside the cowl, and then just on the outer part of the cowl at the base of the windshield. Found a small leak at one of the screws for the passenger's side kickpanel vent when water is placed only in the cowl and at the fusebox when water runs along outside the cowl and down the diagonal pinchweld under the wiper motor. The pinchweld routes the water direct to that bottom screw on the fuse block and I end up with a small drop of water on the head of that bolt in the cab. I have some 3M strip caulk I'm going to place on the screws before I run them through, but the fuse block gasket just disintegrated when I separated the connector.

I'd rtv it, but I'm afraid that I'll break it if I have to separate it again. Would really like to just buy the gasket and be done with it!