O2 sensor compatibility question

[dubcitySHO]

I've been having an issue with seeing some KR values and timing being pulled as a result in my tried and true AJP tune.  I was looking over a datalog and noticed my LTFT was hovering around 18% in closed loop operation, and then I finally got a CEL for bank 1 sensor 2 reporting a lean condition.  I checked the voltage of the sensor, and it's not moving and only reporting 0.5 volts so I need to replace the sensor. 

My question is, are both post cat o2 sensors the same part number or does each bank use a specific sensor?  No sense replacing one while ignoring the other.

[SHOdded]

8   BA5Z-9G444-A   Oxygen Sensor
TAURUS; 3.5L; W/ TURBO; LOWER; REAR

$65.35   $41.33   
8   BA5Z-9G444-A   Oxygen Sensor
Lower Oxygen Sensor, LEFT

3.5 LITER W/ TURBO, TO 11/ 02/ 2014

$65.35   $41.33   
8   BA5Z-9G444-A   Oxygen Sensor
Lower Oxygen Sensor, RIGHT

3.5 LITER W/ TURBO, TO 11/ 02/ 2014

$65.35   $41.33   

https://www.rockauto.com/en/catalog/ford,2012,taurus,3.5l+v6+turbocharged,1501990,exhaust+&+emission,oxygen+(o2)+sensor,5132

[dubcitySHO]

Thanks Shodded!   

I'm confused. 

I know the upstream are the wideband, which are vastly different from the downstream sensors, but those you posted are all the same BA5Z-9G444-A part number for both lower right and left.

I checked rockauto, but saw they didn't have Motorcraft sensors and I didn't know if Bosch or Denso made a similar quality sensor.  I was looking on tasca parts by VIN for them and it appears from their catalog they are the same but you know what they say about stuff on the internet.....

[ZSHO]

The rear downstream 02 sensors have the same part numbers.  Z

MOTORCRAFT DY1167 {#BA5Z9G444A} Heated Info
Category: Oxygen (O2) Sensor. $36.79  ea X-2 Needed.

5% Discount Code: 601E7F62B0FC9A
Expires: March 22, 2018

https://www.rockauto.com/en/moreinfo.php?pk=2603656&jsn=259

https://www.rockauto.com/en/partsearch/?partnum=BA5Z9G444A

Here are the front primary 02 sensors changed @ 50K!

[SHOdded]

Sorry about the confusion, did not check part numbers closely   but Z has you covered

And def stick with Motorcraft.

[AJP turbo]

I would stick with Motorcraft. The Bosch and NTK are great and one of those may even be used for the motorcraft application. But the voltage scale is calibrated for a certain Lambda value so if you use a different sensor you could slightly alter air fuel ratios.

[dubcitySHO]

Ordered!  Thanks gentlemen.

[ZSHO]

Ordered!  Thanks gentlemen.

Cool Bean's.  Glad you're replacing them in (sets) and not individually.
BTW -  I wouldn't be surprised if there shipped out already.  Z 

[FoMoCoSHO]

I would stick with Motorcraft. The Bosch and NTK are great and one of those may even be used for the motorcraft application. But the voltage scale is calibrated for a certain Lambda value so if you use a different sensor you could slightly alter air fuel ratios.

Bosch is listed as the actual OE part for mine and offers a lifetime warranty vs motorcraft 24 mos for about $10.00 more apiece.

[derfdog15]

I would stick with Motorcraft. The Bosch and NTK are great and one of those may even be used for the motorcraft application. But the voltage scale is calibrated for a certain Lambda value so if you use a different sensor you could slightly alter air fuel ratios.

Bosch is listed as the actual OE part for mine and offers a lifetime warranty vs motorcraft 24 mos for about $10.00 more apiece.

Bosch is my go to brand for sensors tbh. They have amazing quality control, we use them at work on all of our engines and I have only seen 1 'failed' sensor in 2 years of heavy load engine testing with various fuels.