This Champion RN12YC Copper Plus 404 Spark Plug Pack of 4 is a great addition to any car or truck. The spark plugs are made of high-quality copper and are designed to work with gasoline engines. They are compatible with a variety of vehicles and are easy to install.

The pack includes four spark plugs and each one is made with precision to ensure reliable performance. The manufacturer part number is 404 and the brand is Champion. These spark plugs are perfect for anyone looking to improve their car's ignition system and achieve better fuel efficiency.