Review on Optimize your vehicle's performance with the Denso 234-4169 Oxygen Sensor by Adam Wilson

I installed this sensor on my 2003 Tundra on the passenger side (bank 2, sensor 1). Received trouble code P0051 indicating the heater on the sensor has failed. I've read horror stories about removing oxygen sensors, but it wasn't that bad for me. A few days before I pre-treated the threads with an oil penetrant. On the day of the removal I put a narrow, long screwdriver in the plug and was able to unscrew it without any problems. You can only raise one hand there. I then cut all the wires from the sensor and used a 1/2" socket 7/8" deep to prepare for a lot of torque. I then attached a universal joint and two extensions to my 1/2" breaker bar. I was ready to twist with all my might to get the sensor out. I even bought a string cutter to prepare for cutting the string if that happens. Well , after a little twisting the sensor quickly gave up. I then unscrewed the threads and applied a copper colored anti-seize coating to the new sensor which came as a tube in the box. The sensor was sealed in a bag in a box and had "Denso" and "Made in USA" along with some numbers on the body of the sensor Wire length was exactly the same as OEM I noticed that the old OEM O2 sensor said "Toyota" but otherwise looks the same.I installed a new sensor with a special slot for the O2 sensor (7/8"). I then used a code reader to clear the code and left the truck with it off for 4 days "Check Engine" light switched on. The time will show. if this sensor lasts as long as the oem sensor but i could buy 7 more of these sensors for the price of the oem version. A quality mechanic would cost around $350 to replace the sensor. I paid about $60 including sensor, 1/ extension for 2 1/2" deep 7/8" female and O2 sensor female.