Kwiksen Heated Air Fuel Ratio O2 Oxygen Sensor 1 Bank 1 Upstream 234-9049 Replacement for RAV4 V6-3.5L 2006 2007 2008 2009 2010 2011 2012

It was difficult to remove the old sensor, as car is 10 y old. After removing I had to re-thread the exhaust pipe thread as the old sensor left a lot of metal residue and new sensor would not go in. but PepBoys has a re-threading tool for the sensors ($10) and after a little tinkering new sensor went in and works great. No more Service Engine Light!