I bought it from Rock Auto and it doesn't work on my 2012 Prius. Just not the same air/fuel sensor, not sure why yet according to Denso's site this sensor works only for the 2010 Prius alone. On Rock Auto's site, I put in my Toyota part number and this was the first one that cross-referenced as the CORRECT sensor for my year/model, which is actually bad because I didn't check Denso's website first. https://www.densoproducts.com/denso-234-9301-oe-identical-afr-sensor Used for approximately 50 miles before swapped for the correct sensor, working as intended. $50 local.
