NGK LZA07-AU1 / LZA07AU1 / 1772 Zirconia Type Lambda Sensor Genuine NGK Component Lambda sensors are oxygen detecting devices that are fitted into the exhaust system of increasingly more internal combustion engines. They are a vital part of the emission reduction technology & also help to ensure that the engine is running at its optimum performance. NGK Spark Plug Co Ltd was a pioneer in this field & is now a world leader in the development & production of Lambda sensors under the NTK brand name. The zirconium dioxide lambda sensor is distinguished by the following characteristics: Fast operational readiness Temperature resistance Not sensitive to hydraulic shock Resistant to contamination High level of reliability These sensors are used as a regulating & as a diagnostic sensor, depending on the vehicle.BOX DIMENSIONSHeight (mm): 130 Width (mm): 130 Length (mm): 40LAMBDA SENSOR SPECS: Type: Linear (Wide Band ) Sub Type: Zirconia Type Thread :18mm Sensor Connector & Lead Length:AU1 If you are unsure as to whether this is the correct part for your vehicle, please don't hesitate to contact us. Alternatively please use the cross reference table above.