New OEM genuine Ford ECM Engine Control Module new in the box. Technically, Ford sold these under their "Ford Remanufactured" program so the price was not crazy but it is all brand new inside from Ford! Fits: 2002-2004 Heritage F150 with 4.2 only. Note! The number ON the ECM white sticker must match: ML2-A04 only. ???????Note!! This item cannot be self-installed or installed with any other system that with Ford IDS programming software. There are only 2 businesses in the country (FS1 in NY and Protech Auto Systems in FL) who can program this outside of the vehicle...all others must be programmed IN the vehicle with Ford only system called Ford Integrated Diagnostic Software (IDS). A shop can subscribe to this but no other system can program this NEW ECM. It is not returnable if installed. ???????Below is a list of the OEM Ford part numbers and sticker ID numbers for reference, all will have ML2-A04 on it: Model Year Sticker Part Number Ford Part Number Engine PROM CODE F150 2002-2003 2L3A-12A650-AFA 2L3Z-12A650-AFA 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-AFB 2L3Z-12A650-AFB 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-AFC 2L3Z-12A650-AFC 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-AGA 2L3Z-12A650-AGA 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-AGB 2L3Z-12A650-AGB 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-AGC 2L3Z-12A650-AGC 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-DA 2L3Z-12A650-DA 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-DB 2L3Z-12A650-DB 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-EA 2L3Z-12A650-EA 4.2 ML2-A04 F150 2002-2003 2L3A-12A650-EB 2L3Z-12A650-EB 4.2 ML2-A04 F150 2002-2003 2U7A-12A650-DXA 2U7Z-12A650-DXA 4.2 ML2-A04 F150 2002-2003 2U7A-12A650-DYA 2U7Z-12A650-DYA 4.2 ML2-A04 F150 2002-2003 4L3A-12A650-CA 4L3Z-12A650-CA 4.2 ML2-A04 F150 2002-2003 4L3A-12A650-CB 4L3Z-12A650-CB 4.2 ML2-A04 F150 2002-2003 4L3A-12A650-DA 4L3Z-12A650-DA 4.2 ML2-A04 F150 2002-2003 4L3A-12A650-DB 4L3Z-12A650-DB 4.2 ML2-A04