This ACDelco Professional spark plug is a must-have for any ignition system. With its high-quality construction and reliable performance, it is sure to keep your vehicle running smoothly for years to come. The plug is designed for easy installation and has a manufacturer part number of 41-948. Measuring 4.19 inches in length, this spark plug is perfect for any vehicle. It is compatible with a variety of different makes and models, ensuring that it will fit your needs perfectly. Whether you're replacing a worn-out plug or upgrading your ignition system, this ACDelco Professional spark plug is the perfect choice.