DG508 Ignition Coil Pack & Iridium Spark Plug SP479 Set, Compatible with Ford 4.6L/5.4L V8 Engines, Fits F-150, F-250, F-350, Expedition, Crown Victoria, Mustang, Lincoln High Performance Upgrade

High-Performance Iridium Spark Plugs: Includes SP479 iridium spark plugs that offer superior ignition performance, enhanced durability, and longer lifespan compared to standard copper or platinum plugs. Ideal for maximizing fuel efficiency and engine power.
^^Complete Tune-Up Solution: This set includes 8 DG508 ignition coils and 8 SP479 iridium spark plugsperfect for a full ignition system refresh. A cost-effective way to restore smooth engine operation and eliminate misfires.
^^Wide Compatibility: Designed for Ford 4.6L and 5.4L V8 engines, compatible with popular models like F-150, F-250, Expedition, Crown Victoria, Mustang, Lincoln Navigator, and more. Replaces part numbers DG457, DG472, DG491.
^^Durable and Heat-Resistant Build: Coils are constructed from premium materials with strong heat resistance and insulation to prevent cracking and misfiring. Spark plugs maintain stable spark under extreme conditions for longer engine life. ^^Easy Installation, Perfect
Fit: Engineered for quick, hassle-free installation. Each component is a direct OEM replacement with pre-gapped plugs and coil boots designed for secure, snug fit without the need for modification.