M18x1.5 O2 Oxygen Sensor Bung Test Pipe Extension Extender Oxygen Sensor Adapter Universal Car PartFeatures:*100% Brand New and High Quality*Made Of High Quality Iron Plating Zinc Material.*Universal 18mm threaded socket*Quick and Easy Installation*For Usage Of Veichle Spark Plugs Spacer to eliminate check engine lightDescription:*Material:Iron Plating Zinc*Size:Hexagon 22mm, length 45mm.*Inner diameter thread M18 x 1.5Package Includes:1 x O2 Oxygen Sensor bungNote: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2.Please allow slight manual measurement deviation for the data.