NGK Mercury

NGK Racing Spark Plugs (8) for 1994-1997 Cougar 4.6 | 2.5 Steps Colder

NGK Iridium IX Spark Plugs (6) for 2006-2009 Milan 3.0 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (6) for 2000-2005 Sable 3.0 DOHC | 1.5 Step Colder

NGK Iridium IX Spark Plugs (6) for 2005-2008 Mariner 3.0 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (6) for 2003-2005 Sable 3.0 Flex Fuel | 1 Step Colder

NGK Iridium IX Spark Plugs (8) for 2002-2005 Mountaineer 4.6 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (4) for 2005-2008 Mariner 2.3 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (8) for 2003-2004 Marauder 4.6 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (6) for 2001 Sable 3.0 Flex Fuel | 1 Step Colder

NGK Iridium IX Spark Plugs (6) for 1998-2006 Mountaineer 4.0 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (8) for 1997-2001 Mountaineer 5.0 | 1.5 Step Colder

NGK Iridium IX Spark Plugs (8) for 1992-2010 Grand Marquis 4.6 Gasoline | 1.5 Step Colder

NGK Racing Spark Plugs (6) for 1998-2006 Mountaineer 4.0 | 2.5 Steps Colder

NGK Racing Spark Plugs (8) for 1997-2001 Mountaineer 5.0 | 2.5 Steps Colder

NGK Iridium IX Spark Plugs (6) for 2005-2007 Montego 3.0 | 1.5 Step Colder

NGK Racing Spark Plugs (6) for 2005-2007 Montego 3.0 | 2.5 Steps Colder

NGK Racing Spark Plugs (6) for 2006-2009 Milan 3.0 | 2.5 Steps Colder

NGK Racing Spark Plugs (6) for 2005-2008 Mariner 3.0 | 2.5 Steps Colder