Gevog Ignition Coil Complete Set of 4 for Ford Lincoln Mercury 4.6L 5.4L V8 6.8L V10 DG508 FD503 Coils Pack Ignition Coils Produce the High Voltage Necessary to Ignite the Air/Fuel Mixture in the Combustion Chamber Item-included: 4 pcs Pre-Greased/Pre-Tested Ignition Coils Included Meterials: Coil: Germany Made High Performance Copper Each Part is Carefully Tested in Order to Provide High Quality Parts to Our Customers, Reduces Misfire and Eliminates Hesitation Built to Strict Quality Control Standards, Meet OEM Performance Requirements. Please Verify Fitment Before Purchasing This Product