The Denso 3478 Spark Plug is a high-quality ignition component designed for vehicles. This spark plug is a genuine Denso product, ensuring reliable performance and durability. It comes with various interchange part numbers such as 1885111060 and FXU16HR11, making it compatible with a range of vehicles. While this spark plug does not come with a manufacturer warranty, it is backed by Denso's reputation for producing top-notch automotive parts. Perfect for car and truck owners looking for a dependable spark plug to keep their vehicle running smoothly.