This Bosch Spark Plug 4212 is a high-quality replacement part for various Ford, Mercury, Isuzu, Buick, Chevrolet, and GMC models from 1980 to 2008. It is a direct fit application and comes with a warranty for added peace of mind. The spark plug has been designed to meet or exceed OEM specifications and is packaged in a Bosch box for easy installation. The Bosch Spark Plug 4212 is made by one of the leading brands in automotive parts and has been tested for maximum performance. Its surface finish is new, ensuring a clean and efficient fit. The part number 4212 AP5144 U22FER9 is an interchangeable and superseded part number that can be used for cross-reference. Check the fitment chart to ensure compatibility with your vehicle.