If your replacement part does not come with a plastic barometric vent, transfer the one from your old part to the new one.

Use the edge of an opening tool to gently push up and loosen the barometric vent from the board.

Be careful not to push too hard, or you will bend the vent's plastic alignment pins.

You may need to use some adhesive or double-sided tape in order to attach the vent to the new part. If you do, be sure not to cover the bottom vent hole.