2010-2012 Ford E-350 Super Duty Rear Oxygen Sensor Fitment: 2010-2012/Ford/E-350 Super Duty::Position=Rear^^2004-2014/Ford/E-350 Super Duty//5.4L V8::Position=Rear^^2004-2009/Ford/E-350 Super Duty//6.8L V10::Position=Rear^^2013-2014/Ford/E-350 Super Duty/Base/6.8L V10::Position=Rear^^2013-2014/Ford/E-350 Super Duty/XL/6.8L V10::Position=Rear^^2013-2014/Ford/E-350 Super Duty/XLT/6.8L V10::Position=Rear