The product is a NOS (New Old Stock) OEM MAP sensor designed for Ford vehicles from 1984 to 1989, including the F150, F250, F350, and Bronco models. It is a Ford Motorcraft brand sensor with the manufacturer part number DY-503 and OE/OEM part number E6FZ-9F479-A, specifically categorized under Exhaust & Emission Systems in the automotive parts and accessories market. This air/fuel ratio sensor is a crucial component for monitoring and adjusting the fuel mixture to optimize engine performance and emissions control in these Ford vehicles. Ready to install. Ready to ship.