The AC Delco R42T Spark Plug is a professional-grade ignition component designed specifically for GM vehicles. With a lot of 8 plugs included, this product is sure to ensure reliable and consistent performance for your car or truck. The OE/OEM part number 5613353 confirms its compatibility with the vehicle, while the manufacturer part number R42T guarantees quality and durability. Trust in the ACDelco brand to provide top-notch spark plugs for your vehicle's ignition system.