Bosch Direct Fit Oxygen Sensor - 16349 Part #: 16349 Line: BOS Bosch Direct Fit Oxygen Sensor 1 Year Limited Warranty Number Of Wires: 4 Thread Size: M18 Terminal Type: Pin Connector Shape: Oval Terminal Gender: Female, Male Technology: Narrow Band Hex Size (mm): 22mm Attachment Method: Screw-In Overall Length (in): 19-3/16 Inch Hex Size (in): 7/8 Inch Heated: Yes Show More Show Less