đ§ăApplicationsăOxygen Sensor Fit for 2001 2002 2003 Toyota Sienna V6-3.0L 02 Sensor. đ§ăReplacement OE#ă234-9021 234-4163 2349021 2344163. Made of high-quality materials, strong durability, to ensure service life. đ§ăCautionsăPls carefully check your vehicle year & make & model with the fitment of Amazon and our description.Pls compare your part with our pictures, it must be completely same.If you have any questions, please email us, we try to answer all email within 24 hours. đ§ăInstallationăSTEP1. Locate the oxygen sensor position and remove it with socket, STEP2. Compare the new sensor to the old sensor to ensure a proper installation, STEP3. Please clean the threaded port to ensure a proper seal of the new sensor,STEP4.Gently tighten the sensor in order to keep wire free from damage and avoid sensor leakage, STEP5,Reinstail the connecor,try to clear it if the car has diagnostic trouble codes. đ§ăBuy With ConfidenceăIf the oxygen sensor does not fit your vehicle, we accept return. Please make the item clean and package in good condition. Maxfavor Air Fuel Ratio O2 Sensor Oxygen Sensor Fit for 2001 2002 2003 Toyota Sienna V6-3.0L Upstream and Downstream 02 Sensor 234-9021 x2 234-4163 x1