DG508 Ignition Coil & SP479 Double Iridium Spark Plug Set

The DG508 Ignition Coil and SP479 Double Iridium Spark Plug set is designed to enhance the performance of your Ford vehicle. Compatible with a wide range of models from 1997 to 2012, including the F-150, E-Series, and Excursion, this set supports engines with 4.6L, 5.4L, and 6.8L configurations. Before purchasing, please refer to the second main picture for a comprehensive list of compatible vehicles.

One of the standout features of this ignition coil and spark plug set is its excellent function. A faulty ignition coil or spark plug can lead to engine misfires, rough idling, decreased power, and poor fuel economy. Each component in this set either matches or improves upon the original equipment (OE) design, ensuring fast and easy installation while delivering superior performance and reliability. This results in better cold-start performance and a smoother running engine.

Quality is paramount, and the high-quality materials used in the construction of the spark plug and ignition coil reflect that. The double iridium spark plug boasts a significantly longer working life, capable of lasting up to 100,000 kilometers. It provides a consistent and stable spark, which is crucial for optimal engine performance. The ignition coil is made from premium materials, featuring a stainless-steel spring with an internal ferrite noise suppressor that prevents radiofrequency interference. Additionally, the advanced thermoplastic coil connector ensures a proper connection and resists fractures caused by heat and thermal cycling, allowing for better voltage transfer from the spark plug.

This set replaces several OE numbers, including DG508, FD503, and DG457, among others. It includes 8 ignition coil packs and 8 double iridium spark plugs, making it a complete solution for your ignition system needs. While an instruction manual is not included, the installation process is straightforward and user-friendly.

We stand behind our products with a commitment to after-sales service. Our customer service team is available 24 hours a day to assist with any installation or quality issues you may encounter. With a one-year product service guarantee, you can purchase with confidence, knowing that support is just a message away.