Compatibility: 2004-2009 Mazda 3 2.0L 2006-2009 Mazda 3 2.3L Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? .
2pcs Upstream For 2001-2002 Mazda 626 2.5L Oxygen 02 02 Sensor
Upstream For 2006-2009 Mazda 3 2.0L 2.3L Air Fuel Ratio Oxygen O2 02 Sensor 1
234-9051 Oxygen Sensor Upstream for Lexus LS600H 2008-12 5.0L V8;LX470 4.7L V8
234-9051 Oxygen Sensor Upstream for Toyota Land Cruiser 4.7L V8 2005-2007
234-9051 Oxygen Sensor Upstream for
2X Oxygen Sensor 234-9051 Upstream for IS350 06-08 35L V6 GS300 2006 30L V6
