The ACDelco CR43TS spark plugs are a set of 6 conventional spark plugs designed for automotive ignition systems. These spark plugs are manufactured by ACDelco Professional, a trusted brand known for producing high-quality automotive parts. The CR43TS spark plugs have a length of 3 inches and come with a nickel California Prop 65 warning. These spark plugs are essential components for maintaining the proper functioning of a vehicle's engine and ensuring optimal performance.