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

My 2004 Toyota Tundra had a "Check Engine" light on with code P0031 (O2 Sensor Bank 1 Sensor 1) My local Toyota dealership wanted $238.98 for this one oxygen sensor (Toyota Part # 89465-0C140) which by the way is a Denso OE sensor. I purchased the exact same oxygen sensor (Denso part #234-4169) direct from Revain for $38.56 and saved over $200. It came with a sensor, a small tube of anti-seize lube, and instructions. The picture shown on the Revain doesn't show the end of the wiring with the connector, so I wasn't sure if the connector's plastic end was attached. It was. This sensor is a direct replacement sensor, just like the one I removed from my truck. I simply removed my existing sensor by unplugging it from the wiring harness and unscrewing it from the exhaust system, then screwing in the new sensor and connecting it to the wiring harness. It is so easy. My "Check Engine" light is not on.