Correct Air/Fuel Sensor for 2011 Prius

I am replacing the air/fuel sensor on my 2011 due to mileage (187K) and possible anti-freeze contamination from the recent head gasket failure.

When I look up the correct air/fuel sensor by VIN at the dealership, part # 89467-52060 comes up. This cross references to Denso #234-9090.

If I look up a 2011 Prius on Rockauto, Denso part #234-9011 comes up. This cross references to OE Part #89467-02070. Various online Toyota part sites indicate #89467-52060 is superseded by #89467-02070, but my trusted contact at the dealership confirmed that this is NOT the case when searching by VIN using the official Toyota catalog used by dealerships.

If you click on either part number (234-9011 or 234-9090) on Rockauto, both part numbers indicate that the 2011 Prius is a compatible vehicle.

So...

1)What is the difference between the two part numbers? I wonder if anyone works at a parts store and can take pictures of #234-9011 and #234-9090 for us and compare the two for any physical differences.

2) Does it matter which one I use? I have a feeling the answer is no.

For the record, I went ahead and order OE #89467-52060 directly from the Toyota dealership.

Perhaps our resident librarian @Mendel Leisk can help us out here.

Thanks!

 

Update:

The Denso sensor I removed from my car was #89467-52060. So, Denso #234-9090 is probably the correct replacement.