Defroster. Grille.
A nozzle / vent to direct HVAC air to the vehicle's windshield of to Defrost / defog the windshield. Cover. Duct. Windshield Defogger Vent. Windshield Nozzle.

Windshield Defroster Nozzle

Fits Explorer, Police Interceptor Utility

W/O POLICE INTERCEPTOR, w/o adaptive cruise. W/POLICE INTERCEPTOR, w/auto lamps, w/o adaptive cruise.