What vehicle does this O2 Sensor off Ebay go to?

I'm finished with buying parts from Amazon and Ebay...Amazon sent the wrong part even after I typed in exactly what part number I wanted for my 2004 Toyota 3.4 V6. No big deal, I'll install the downstream sensor while I'm at it. Then I found one on Ebay that was cheaper so I decided to go that route. Well, after spending some time underneath my truck dealing with rusted bolts and then taking the shifter cover off to access the wire to unplug the upstream sensor I opened the box from Ebay and found this:



The part looks close but the wire is way too short. Plus the bolt pattern looks different. I got fed up pretty quick and jumped ship before I got further wrapped up in trying to install this. Here are a couple of pictures of the box and the O2 sensor itself with the part numbers. I started getting paranoid that I was sent a counterfit OEM part but I cross referenced the part # and it says it's for a Toyota Tacoma. Maybe a 4cyl? Did I get sent the wrong O2 sensor or am I doing something wrong trying to install this?

 

Doesn't answer your question but I suggest you go through Rockauto next time.

 

I appreciate that. If I have to pay a little more I'm good with that because I don't want to spend my days off fumbling around with the wrong parts.