I had my Front wide-band sensors replaced a few months ago and here are the part numbers for anyone interested.
These are the part numbers for the 13+SHO .
I found http://www.rockauto.com to have the best price.
If you see an error please LMK,thanks. Z
The Front 02 sensors are both wide-band IIRC and require two sensors using the same part numbers. .
There is a TOTAL of five 02 sensors required on the vehicle...
Front wide-band upper sensor .MOTORCRAFT DY1185 {#8F9Z9F472H}
$64.89
http://www.rockauto.com/en/moreinfo.php?pk=3421647&cc=1503823&jsn=749&jsn=749&jsn=749
Downstream Front 02 sensor requires one sensor.
BH6Z-9G444-A DY1155
$61.69
http://www.rockauto.com/en/moreinfo.php?pk=2604770&cc=1503823&jsn=746&jsn=746&jsn=746
The rear down-stream 02 sensors have the same part numbers and TWO sensors are required. .
MOTORCRAFT DY1167 {#BA5Z9G444A} Downstream Rear
$42.79
http://www.rockauto.com/en/moreinfo.php?pk=2603656&cc=1503823&jsn=744
http://www.rockauto.com/en/catalog/ford,2013,taurus,3.5l+v6+turbocharged,1503823,exhaust+&+emission,oxygen+(o2)+sensor,5132
These are the part numbers for the 13+SHO .
I found http://www.rockauto.com to have the best price.
If you see an error please LMK,thanks. Z
The Front 02 sensors are both wide-band IIRC and require two sensors using the same part numbers. .
There is a TOTAL of five 02 sensors required on the vehicle...
Front wide-band upper sensor .MOTORCRAFT DY1185 {#8F9Z9F472H}
$64.89
http://www.rockauto.com/en/moreinfo.php?pk=3421647&cc=1503823&jsn=749&jsn=749&jsn=749

Downstream Front 02 sensor requires one sensor.
BH6Z-9G444-A DY1155
$61.69
http://www.rockauto.com/en/moreinfo.php?pk=2604770&cc=1503823&jsn=746&jsn=746&jsn=746

The rear down-stream 02 sensors have the same part numbers and TWO sensors are required. .
MOTORCRAFT DY1167 {#BA5Z9G444A} Downstream Rear
$42.79
http://www.rockauto.com/en/moreinfo.php?pk=2603656&cc=1503823&jsn=744
http://www.rockauto.com/en/catalog/ford,2013,taurus,3.5l+v6+turbocharged,1503823,exhaust+&+emission,oxygen+(o2)+sensor,5132
