-- 2003 - 2004 -- Ford Expedition Lincoln Navigator Air Flow Meter Part Number: 3L7U-12B579-AA - Radio Not Included - Blemished Unit - This listing is for a Ford and Lincoln air flow meter. This meter has been cleaned, serviced as needed and thoroughly checked. Appearance is blemished with the yellow paint on the front fading, as pictured, and function is perfect! REPLACEMENT ONLY This unit is being sold as a REPLACEMENT ONLY! The part number for this meter is 3L7U-12B579-AA. If you do not have this exact part number currently in your vehicle, it will likely NOT WORK. If you are unsure of your part number, contact us with your VIN and we should be able to provide you with the correct part number. They may look the same and have the same plugs but data streams may be different, not allowing them to code. For example, external amps are used in some cars and will not allow interchange, etc.