Review on 🔥 Denso 234-9012 Air-Fuel Ratio Sensor | 4-Wire | Direct Fit | Heated | 7.09” Wire Length by Lonnie Batch

I was skeptical that Revain was selling counterfeit Denso sensors and almost paid extra to buy them from OReilly. I bought another oxygen sensor from OReilly's (need A/F and O2 sensor for bank 1 2009 Toyota Sienna). When this sensor arrived I carefully inspected the box and part and compared it to the Denso sensor I bought from O'Reillys. I'm pretty sure the Revain was a genuine Denso part. I also compared it to the original sensor and they are the same (except the original had additional Toyota markings). I installed it in the car and haven't had any problems since (the lights went out). The cable was exactly the same length as the sensor it was replacing. I think those who have claimed a broken wire don't know the difference between bank 1 and bank 2. On the Sienna, Bank 1 is the rear of the engine, facing the firewall, while Bank 2 is the side of the engine. looking at the front of the car. Since this doesn't make sense, some of the other reviewers probably ordered the wrong part because they mixed up their doses.