Photo 1 of ***MISSINGG ONE*** Sangyue 4X Oxygen O2 Sensor for 2008 2009 2010 2011 2012 2013 GMC Sierra 1500 4.8L/5.3L/6.0L/6.2L Upstream + Downstream

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Photo 1 of ***MISSINGG ONE*** Sangyue 4X Oxygen O2 Sensor for 2008 2009 2010 2011 2012 2013 GMC Sierra 1500 4.8L/5.3L/6.0L/6.2L Upstream + DownstreamPhoto 2 of ***MISSINGG ONE*** Sangyue 4X Oxygen O2 Sensor for 2008 2009 2010 2011 2012 2013 GMC Sierra 1500 4.8L/5.3L/6.0L/6.2L Upstream + Downstream