Photo 1 of UNITHUB Oxygen Sensor Upstream + Downstream 234-4668 2344407 Compatible for Chevy Silverado Tahoe Avalanche GMC Yukon Sierra Cadillac Escalade 2008-2014 (Set of 4)

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Photo 1 of UNITHUB Oxygen Sensor Upstream + Downstream 234-4668 2344407 Compatible for Chevy Silverado Tahoe Avalanche GMC Yukon Sierra Cadillac Escalade 2008-2014 (Set of 4)Photo 2 of UNITHUB Oxygen Sensor Upstream + Downstream 234-4668 2344407 Compatible for Chevy Silverado Tahoe Avalanche GMC Yukon Sierra Cadillac Escalade 2008-2014 (Set of 4)