Toyota Prado 4000 Rear Oxygen Sensor 89465-60430 Universal Direct Replacement

If your Toyota Land Cruiser 400 shows check engine light, higher fuel consumption, power loss, or exhaust smoke, likely rear oxygen sensor aging or failure prevents accurate monitoring of exhaust oxygen content. When functioning normally, this sensor feeds back exhaust oxygen concentration to the ECU to precisely control air-fuel ratio, ensuring combustion efficiency and emission compliance. OEM number 89465-60430; fits Toyota Land Cruiser 400 (2003-2009) and some compatible Lexus GX460 models. During installation, ensure the engine is cold, use a dedicated socket to remove old sensor to avoid thread damage, and keep sensor harness away from exhaust to prevent heat melting.