4 Set O2 Oxygen Sensor Bung M18x1.5 Exhaust Lambda Boss Nut Weld Stainless steel
Thread: M18x1.5mm. Type: Oxygen Sensor Bung Plug Kit. 4x Oxygen Sensor Nut Bung Stepped. 4x Oxygen Sensor Plugs. Material: Stainless steel. Due to the light and screen difference, the item's color may be slightly different from the pictures.