The seller clearly states that the sensor is 3/8" - 18 NPTF, but the one I received is smaller and doesn't fit the 3/8" - 18 NPTF thread on my car. There are also signs of wear on the hex, which indicates it's a used or returned part. The sensor in the image is the one I should have received, and if you look closely, the thread in the image is thicker than the one I received. The description doesn't match what I received.