Goss Oxygen Sensor - 4 Wire - Holden - OX871 5644 NGK Spark Plug R67129 NGK Racing Spark Plug -

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Goss Oxygen Sensor - 4 Wire - Holden - OX871 5644 NGK Spark Plug R67129 NGK Racing Spark Plug -For correct fitment, go to the Goss Online Catalogue and find your relevant part number. Once you have that part number, find it here using our "Search" page. The Oxygen Sensor (or Lambda sensor) is an electronic device that measures oxygen content in the exhaust gases of an engine. It outputs a signal to the engine control unit (ECU), which adjusts the air fuel mixture to obtain the required level.