This lot of 8 Champion Spark Plugs, part number RBL8-6, is a vintage NOS item that is perfect for anyone looking for a reliable and high-quality spark plug. These plugs have a thread diameter of 14mm and are configured to be standard, making them compatible with a wide range of vehicles. Made of copper material, these spark plugs are designed to work with gasoline fuel type and have a voltage of 12V. Furthermore, these spark plugs have interchange part numbers of T20R-U and BR9FS, as well as an OE/OEM part number of 5613357. Although there is no manufacturer warranty, these plugs are in excellent condition and are sure to provide exceptional performance. Don't miss your chance to own this highly sought-after item. Representative lot shown. Made in the USA. Please review our business policies in our store for information regarding returns, shipping and warranties.