New OEM Genuine Ford o2 Oxygen Sensor - not aftermarket junk!! We took out of bag to photo, never installed. 

Fits V6 motors only, front upper (upstream) position, left or right side.

Fits:
2010-2012 Fusion, MKZ, Escape, Mariner, Tribute
​​​​​​​2011 Edge, Mustang, Explorer, MKX

New OEM Ford - part # 9E5Z-9F472-D