I just replaced my downstream O2 sensors and was surprised how different the new sensors looked that the OEM ones. I looked up the parts on the Denso website and they were the manufacturer of the OEM too. Anyone else notice this? Was there a design change or a new part number that superseeds the old if I ordered OEM from Toyota or would it have looked the same as the original? BTW this was on a 2010.
New on top old on bottom in picture:
New on top old on bottom in picture: