Compatibility: 1999-2003 Lexus RX300 3.0L 2001-2003 Toyota Highlander 3.0L Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? .
?2pcs Up & Downstream for 05-06 Toyota Matrix 1.8L Air Fuel Ratio Oxygen Sensor
2pcs Up & Downstream for 05-09 Lexus GX470 4.7L Air Fuel Ratio O2 Oxygen Sensor
2pcs Up & Downstream Fits 2004-2005 Honda Civic 1.7L Air Fuel Ratio O2 Sensor
2pcs Up & Downstream Fits 1999 Toyota 4Runner 2.7L Air Fuel Ratio O2 Sensor
2PCS Up & Downstream for 2001-2003 Toyota Highlander 3.0L Air Fuel Ratio Sensor
