Do Denso o2 sensors have a part number stamped on it?

I ordered a Denso 02 sensor from Amazon and the box is correct but there is no part number stamped on it.
Other brands for other vehicles in the past had it stamped on the sensor

Does Denso stamp o2 sensors with part numbers?

Just making sure I got a real Denso

Denso has no telephone number of course

 

There should be something lazer etched above the hex nut, I can take a pic when I get home of the ones I have on de shelf

 

My bad. It's on there but has a different number than I ordered. I googled the number and nothing comes up which is strange.

I ordered 234 4169 for upstream
The box reads that number

The number stamped on the o2 sensor reads as follows:

Denso
41310
04E08

Denso Facebook gave me a number to contact that I've been on hold for 15 minutes. Hoping someone pics up.....aggravating

 

So they picked up the phone finally

For anyone reading this in the future the numbers on the o2 sensor WILL NOT match the part number on the box.
They said they do that to prevent counterfeiting there product.
The rep said he gets calls like this all the time and admits it's confusing

 

Sounds like a load of BS

 

When I told him the number I ordered and on the box he told me the number on the sensor without me saying what it was. Seems pretty legit. Dopey but legit

 

If it works, it works