If you look at the rear pillar on either side of the Vanagon you will see a small plastic grill on the upper rear side of the van. These grills allow fresh air to come into the engine compartment. If you remove one of these grills you will find that the screws that hold it on are screwing into a small black plastic clip. These clips can go bad with age and need to be replaced. That is what this part is, the black plastic clip that the screw goes into. There are two per side or four per van. You are buying one, so order accordingly.