4PCS Oxygen O2 Sensor Upstream+Downstream for 1998-2008 Lincoln Navigator 5.4L

Upstream Oxygen O2 Sensor For Lincoln Navigator 2001 2002 2006 2007 2008 5.4L V8

NGK NTK Upstream Right O2 Oxygen Sensor for 1998 Lincoln Navigator 5.4L V8 - ir

Walker Upstream Right Oxygen Sensor for 2008 Lincoln Navigator 5.4L V8 O2 wf

Walker Upstream Left Oxygen Sensor for 2008 Lincoln Navigator 5.4L V8 O2 re

NGK NTK Upstream Left O2 Oxygen Sensor for 1998 Lincoln Navigator 5.4L V8 - ua

Denso Upstream Oxygen Sensor for 1998 Lincoln Navigator 5.4L V8 Exhaust hi

Delphi Oxygen Sensor For 1998-2011 Lincoln Navigator 5.4L V8