OKAY MOTOR Air Fuel Ratio Sensor for 2001-2003 Toyota RAV4 2.0L Bank 1 Sensor 1 Upstream Left Air Fuel Ratio Oxygen Sensor for Toyota RAV4 2.0L Part #: 5S3979, OS1426, 234-9023, SG673, 89467-42010 New Aftermarket Replacement Unit. 180-days manufacturer type warranty limited Application Guides: 2001-2003 Toyota RAV4 2.0L