O2 Exhaust Lambda Oxygen Sensor Boss Nut M18 x 1.5 Nut & Cap Bung Kits Blanking. Size: standard M18 X 1.5 thread (both bung and plug). O2 Oxygen Sensor Bung+Plug Kit. 2 x O2 Oxygen Sensor Bung. 2 x O2 Oxygen Sensor Plug.
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