The Autolite BF-82 Spark Plug is a vintage part made of steel blued (black) material. It is a gasoline type spark plug with a factory finish surface. The item length is as shown in the photos. The spark plug is a substitute for BRF-82, BRF82, and has the OE/OEM part number BF-82 ‘POWERTIP’.....#B7A-12405-B. It is a spark plug for ignition systems and components. The brand is Autolite, and it is a custom bundle. The spark plug is made in the United States.