Buy OEM 2009 Lexus Part # 8946506020 (89465-06020, 8946533120). Oxygen Sensor. Oxygen Sensor - Repair or Replace A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine

SENSOR, OXYGEN

Fits ES 300

Oxygen Sensor - Repair or Replace
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your 2009 Lexus to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Lexus genuine parts.