Check the listing for details. Autolite Spark Plugs 3924 Pack of 4. Condition: New. Listed at 13.25 USD. This pack of 4 Autolite spark plugs, model number 3924, is a must-have for any car or truck owner looking for reliable ignition performance. These spark plugs are designed to fit a variety of vehicles, and are perfect for those who want to maintain their vehicle's performance and fuel efficiency. With their high-quality construction and precision engineering, these spark plugs are sure to provide long-lasting performance and reliable ignition every time you start your engine. Whether you're a professional mechanic or a DIY enthusiast, these Autolite spark plugs are an excellent choice for your vehicle. They are designed to work with a variety of ignition systems, and are backed by Autolite's reputation for quality and reliability. So why wait? Order your pack of 4 Autolite spark plugs today and experience the best in ignition performance!