Lexus RX Front Oxygen Sensor 89467-48210 High Efficiency Direct Replacement

If your Lexus RX shows trouble engine light, increased fuel consumption, weak acceleration, or rough idle, usually the upstream oxygen sensor has aged or failed to monitor exhaust oxygen content accurately. This part, when functioning properly, sends feedback to the ECU to optimize fuel injection, maximizing combustion efficiency and guaranteeing power and emissions targets. This replacement is OEM number 89467-48210 high-efficiency direct replacement, fits RX series (e.g., RX350, RX450h). Installation must be done with a cold engine; carefully use a dedicated socket to remove the old sensor to avoid thread damage; apply anti-seize agent to prevent seizing later.