Bosch Direct Fit Oxygen Sensor - 16089 Part #: 16089 Line: BOS Bosch Direct Fit Oxygen Sensor 1 Year Limited Warranty Number Of Wires: 4 Thread Size: M18 Terminal Type: Blade, Pin Connector Shape: Trapezoid Terminal Gender: Female Technology: Narrow Band Hex Size (mm): 22mm Attachment Method: Screw-In Overall Length (in): 15-11/16 Inch Hex Size (in): 7/8 Inch Heated: Yes Show More Show Less