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|Connector Type:||OE Type|
|Length (Sealing Surface To End Of Connector):||35.5 in|
|Thread Size:||18 mm|
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Q:I pulled both my o2 sensors off my exhaust and cannot find a diagram that tells which sensor goes where. I drive a 2003 Volkswagen GTI 1.8t. Any information you can give me would be great. Thank you
A:This NTK Oxygen Sensor with Part No. 24321 is the Pre-cat oxygen sensor while NTK Oxygen Sensor with Part No. 25689 (which unfortunately is not available with us) is the Post-cat oxygen sensor. The pre-cat sensor is closest to the front of the car and the post-cat sensor is closest to the rear.