Radiator Upper Active Grill Shutter Assembly 601-514 Fitment: Replacement for Ford Expedition 2018-2024 Replacement for Lincoln Navigator Upper 2021-2024 Features: The radiator upper active grill shutter assembly is designed to make sure sufficient air enters the engine compartment and provide ventilation and heat dissipation for the engine. It is produced in line with the original equipment dimensions, achieving a direct fit and reliable performance. Replaces Part Number: 601-514