DG511 Ignition Coil & SP546 Iridium Spark Plugs Compatible with 2005-2008 Ford F-150/Expedition/F-250 F-350 Super Duty, 2005-2008 Lincoln Mark LT Navigator 5.4L V8 Replace# FD508 UF537 7C3E12405AB

Compatible with: For 2005-2008 Ford Expedition 5.4L V82005-2007 before 12/2007 Ford F-150 5.4L V82005-2008 Ford F-250 Super Duty 5.4L V82005-2008 Ford F-350 Super Duty 5.4L V8. For 2006-2008 Lincoln Mark LT 5.4L V82005-2008 Lincoln Navigator 5.4L V8.
^^Excellent Function: A faulty ignition coil & spark plug may result in engine misfire, rough engine idle, decrease in power, poor fuel economy etc. Every component either matches or improves on the OE design to ensure fast and easy installation with superior performance and reliability, to provide superior cold-start performance and a smoother running engine.
^^Enhanced Ignition Performance: Featuring iridium-enhanced electrodes, SP546 spark plugs generate a consistent and powerful spark for reliable combustion, supports smoother engine operation, improved throttle response, and optimized fuel utilization. ^^OE# DG511 + SP546. Replace# DG511, UF537, DG-511, FD508, 3L3Z12029BA, 3L3Z-12029-BA, 3L3U12A366BB, 9W7Z9F593A^^SP546, SP-546, 3L3E12405KD, 7C3E12405AB.
Package included: Ignition Coil Packs x8, Iridium Spark Plug x8. Not included instruction manual, easy to install.
^^After-Sales Service: We offer 24 hours customer service and 1 year product service, If you are encounter product installation, product quality and other problems, please feel free to contact us.