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Please check fitment notes & description for accurate information. 2006-2007 Subaru B9 Tribeca 3.0L 2008-2009 Subaru Legacy 3.0L 2005-2009 Subaru Outback 3.0L 2008-2009 Subaru Tribeca 3.6L Oxygen Sensor's Location: How do I know the O2 sensor is good or not? Check engine light on A reduction in fuel economy. Your catalytic converter fails unexpectedly Exhaust emissions reach undesirable levels. How to install the oxygen sensor? .
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