This is a combo pack come in a set of Ignition Coil and SP515 Spark Plug Pack For Ford V8 5.4L 4.6L DG511.Our products were designed with high quality materials to meet or exceed OEM Specifications. Before you purchase this item, please make sure it is compatible with your vehicle. If you have any doubt, please contact us, we will try our best to help you!Feature: 1.Purified alumina powder insulator:provides exceptional dielectric strength and thermal conductivity allowing the material to stand up to extreme stress 2. Copper-Glass Seal:bonds the center electrode and insulator together for a gas-tight seal. Maintains proper heat and excludes hot combustion gases. 3. Machine-Rolled Threads:For trouble-free installation and removal.Prevents seizingor cross-threading of the spark on removal. 4. The cuprum contact powder above and below has a wonderful capability of electric&heat conduction and airtightness. 5. Match world wide famous brands quality Selected raw material 6. Using highest melting point material, it resists corrosion and oxidation toughly, with much longer service life than conventional spark plugs. 7. For the fine center electrode, it requires lower ignition voltage, with easier ignition and acceleration, create more power and less emissionSuit for:08/02/2004 - 09/15/2008, Ford Expedition, 5.4L 3V V806/02/2003 - 08/23/2004, Ford F150, 5.4L 3V V807/19/2004 - 12/01/2007, Ford F250 / 350 / 450 / 550 Super Duty, 5.4L 3V V807/19/2004 - 12/01/2007, Ford F250 / 350 / 450 / 550 Super Duty, 6.8L Gas EFI V1001/03/2005 - 12/01/2007, Ford F53, 6.8L Gas EFI V1006/02/2003 - 08/23/2004, Lincoln Mark LT, 5.4L 3V V808/02/2004 - 09/15/2008, Lincoln Navigator, 5.4L 3V V8
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