4X Up+Downstream Oxygen Sensor For 2008-2009 Subaru Legacy Tribeca 3.0L 3.6L

For 2006-2007 Subaru B9 Tribeca 3.0L. For 2008-2009 Subaru Legacy 3.0L. For 2005-2009 Subaru Outback 3.0L. ● Durable Performance： Internal Double insulated ceramic insulation， prevents premature sensor wear，more durable and has a longer life.