FORD, LINCOLN, and MERCURY IMPORTANT NOTES: Please use the fitment option on top left corner before hand to avoid ordering the improper coils as the ignition coil pack can change based on the year/ month of manufacture of your vehicle Direct replacement, built to strict quality control standards, Original Motorcraft spark plugs. Commonly referred to as a Ignitor, improves overall performance with high-performance polymer housing to resist moisture Replaces dealer part numbers: Motorcraft SP479 DG457 DG472 DG491 F523 DG508 3W7Z12029AA, COP9 FD503 DG467 DG473 DG481 FD493 DQ50101 FD503T, C566 F7TU12A366AB GN10164 1L2U12029AA 1L2U12A366A 100% Compatible with OEM Parts, meets Original Equipment Manufacturer (OEM) Standards MAS 10 PCs Ignition Coil DG508 & Motorcraft 10 PCs Spark Plug SP479 for Ford Lincoln Mercury 4.6L 5.4L V8 Crown Victoria Expedition F-150 F-250 Mustang 3W7Z-12029-AA DG508 DG457 DG472 DG491