ITEM NAME:Iron M18X1.5 O2 Oxygen Sensor Stepped Mounting Bung Plugs Oxygen Sensor Fit T4H8 Iron M18X1.5 O2 Oxygen Sensor Stepped Mounting Bung Plugs Oxygen Sensor Fit T4H8 Application: for Oxygen Sensor Color: Silver Material: Iron Installed size about: 25 * 17MM Internal & external thread M18 x 1.5 Package included: 1* oxygen sensor nut stopper 1* oxygen sensor Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Application: for Oxygen Sensor. 1 oxygen sensor nut stopper. Material: Iron. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.