Ruiya For 2003 2004 Toyota 4Runner Left Downstream O2 Oxygen Sensor

Description：
The oxygen sensor, located either upstream or downstream of the catalytic converter, is designed to monitor the air-fuel mixture under idle, moderate acceleration, and cruise conditions. Symptoms of a faulty or bad oxygen sensor include bad gas mileage, rough idle, reduced drivability, and an illuminated check-engine light.

Fitment：
Left Side 2004 Toyota 4Runner Limited Sport Utility 4-Door 4.0L 3956CC 241Cu. In. V6 GAS DOHC Naturally Aspirated
Left Side 2004 Toyota 4Runner SR5 Sport Utility 4-Door 4.0L 3956CC 241Cu. In. V6 GAS DOHC Naturally Aspirated
Left Side 2004 Toyota 4Runner Sport Sport Utility 4-Door 4.0L 3956CC 241Cu. In. V6 GAS DOHC Naturally Aspirated
Left Side 2003 Toyota 4Runner Limited Sport Utility 4-Door 4.0L 3956CC 241Cu. In. V6 GAS DOHC Naturally Aspirated
Left Side 2003 Toyota 4Runner SR5 Sport Utility 4-Door 4.0L 3956CC 241Cu. In. V6 GAS DOHC Naturally Aspirated
Left Side 2003 Toyota 4Runner Sport Sport Utility 4-Door 4.0L 3956CC 241Cu. In. V6 GAS DOHC Naturally Aspirated