The U Part Champion Spark Plug N9 Ycx4 Is The Perfect Choice To Keep Your Vehicles Engine Running Smoothly And Efficiently. Designed To Provide Reliable Ignition Performance; This Spark Plug Ensures Optimal Combustion For Improved Engine Power And Fuel Efficiency Top Quality Sparkplug For Use With Internal Combustion Petrol Engines. Prepacked. Also Available Unpacked At Code Ao450/2971.