New Japanese NGK spark plug set Original There are 9 available These are the types of cars they fit: Tahoe — Models 2000 to 2014 (4.8 / 5.3 engine) Suburban — Models 2000 to 2014 (5.3 / 6.0 engine) Silverado — Models 1999 to 2013 (4.8 / 5.3 / 6.0 engine) Caprice — Models 2000 to 2016 (5.7 / 6.0 V8 engine) Lumina SS — Models 2000 to 2009 (V8 engine) Camaro — Models 1998 to 2015 (V8 engine) Corvette — Models 1997 to 2013 (LS1, LS2, LS3 engines) TrailBlazer — Models 2003 to 2009 (5.3 V8 engine) Express Van — Models 2003 to 2015 (V8 engine) GMC: Yukon / Denali — Models 2000 to 2014 (4.8 / 5.3 / 6.0 / 6.2 engine) Sierra — Models 1999 to 2013 (4.8 / 5.3 / 6.0 / 6.2 engine) Envoy — Models 2005 to 2009 (5.3 V8 engine) Savana Van — Models 2003 to 2015 (V8 engine) Cadillac: Escalade — Models 2002 to 2014 (6.0 / 6.2 engine) Hummer: Hummer H2 — Models 2003 to 2009 (6.0 / 6.2 engine) Hummer H3 Alpha — Models 2008 to 2010 (5.3 V8 engine) Ford: Mustang — Models 1996 to 2004 (3.8 / 3.9 V6 engine) Taurus — Models 2000 to 2007 (3.0 Vulcan V6 engine) Windstar — Models 1995 to 2003 (3.8 V6 engine)