NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-1998 | Aston Martin | DB7 | Base |
| 1997-1998 | Aston Martin | DB7 | Volante |
| 1991 | Audi | 200 Quattro | 20v |
| 1991 | Audi | 200 Quattro | 20v Avant |
| 2006-2013 | Audi | A3 | Base |
| 2009-2013 | Audi | A3 Quattro | Base |
| 2005-2014 | Audi | A4 | Base |
| 2007-2009 | Audi | A4 | Cabriolet |
| 2015-2016 | Audi | A4 | Premium |
| 2015-2016 | Audi | A4 | Premium Plus |
| 2015 | Audi | A4 | Prestige |
| 2005-2012 | Audi | A4 Quattro | Avant |
| 2005-2014 | Audi | A4 Quattro | Base |
| 2007-2009 | Audi | A4 Quattro | Cabriolet |
| 2015-2016 | Audi | A4 Quattro | Premium |
| 2015-2016 | Audi | A4 Quattro | Premium Plus |
| 2015 | Audi | A4 Quattro | Prestige |
| 2010-2014 | Audi | A5 | Cabriolet |
| 2010-2014 | Audi | A5 Quattro | Base |
| 2010-2014 | Audi | A5 Quattro | Cabriolet |
| 2015-2016 | Audi | A5 Quattro | Premium |
| 2015-2016 | Audi | A5 Quattro | Premium Plus |
| 2015 | Audi | A5 Quattro | Prestige |
| 2017 | Audi | A5 Quattro | Sport |
| 2012-2015 | Audi | A6 | Premium |
| 2012-2015 | Audi | A6 | Premium Plus |
| 2013-2015 | Audi | A6 Quattro | Premium |
| 2013-2015 | Audi | A6 Quattro | Premium Plus |
| 2013-2015 | Audi | allroad | Premium |
| 2013-2015 | Audi | allroad | Premium Plus |
| 2013-2015 | Audi | allroad | Prestige |
| 2017-2018 | Audi | Q3 | Premium |
| 2015-2018 | Audi | Q3 | Premium Plus |
| 2015-2017 | Audi | Q3 | Prestige |
| 2017-2018 | Audi | Q3 Quattro | Premium |
| 2015-2018 | Audi | Q3 Quattro | Premium Plus |
| 2015-2017 | Audi | Q3 Quattro | Prestige |
| 2013-2016 | Audi | Q5 | Hybrid Prestige |
| 2011-2017 | Audi | Q5 | Premium |
| 2011-2017 | Audi | Q5 | Premium Plus |
| 2011-2012,2014-2015,2017 | Audi | R8 | Base |
| 2012 | Audi | R8 | GT |
| 2012 | Audi | R8 | GT Spyder |
| 2014-2015,2017 | Audi | R8 | Plus |
| 2011-2012,2014-2015,2017 | Audi | R8 | Spyder |
| 2013-2015 | Audi | RS5 | Base |
| 2014-2015 | Audi | RS5 | Cabriolet |
| 2003 | Audi | RS6 | Base |
| 1992-1994 | Audi | S4 | Base |
| 1995 | Audi | S6 | Avant |
| 1995 | Audi | S6 | Base |
| 2008-2009 | Audi | TT | Base |
| 2009-2011,2014-2015 | Audi | TT Quattro | Base |
| 2012-2013 | Audi | TT Quattro | Premium Plus |
| 2012-2013 | Audi | TT Quattro | Prestige |
| 2009-2015 | Audi | TTS Quattro | Base |
| 2007-2008 | BMW | Alpina B7 | Base |
| 2019 | Polaris | ACE 500 | Base |
| 2002 | Polaris | Frontier | Base |
| 2003-2004 | Polaris | Frontier Classic | Base |
| 2003-2005 | Polaris | Frontier Touring | Base |
| 2006 | Polaris | FS Classic | Base |
| 2007-2009 | Polaris | FS IQ Touring | Base |
| 2011-2013 | Polaris | FS IQ WideTrak | Base |
| 2006 | Polaris | FS Touring | Base |
| 2007 | Polaris | FST IQ | Base |
| 2008 | Polaris | FST IQ Cruiser | Base |
| 2007 | Polaris | FST IQ LX | Base |
| 2007-2010 | Polaris | FST IQ Touring | Base |
| 2007 | Polaris | FST SwitchBack | Base |
| 2008 | Polaris | IQ Cruiser | Base |
| 2009-2010 | Polaris | IQ Turbo Dragon | Base |
| 2008 | Polaris | IQ Turbo LX | Base |
| 2004 | Polaris | MSX 110 | Base |
| 2004 | Polaris | MSX 150 | Base |
| 2007 | Polaris | Ranger 4x4 700 EFI | Base |
| 2017-2018 | Polaris | Ranger 500 | Base |
| 2006-2009 | Polaris | Ranger 6x6 700 EFI | Base |
| 2010-2017 | Polaris | Ranger 6x6 800 | Base |
| 2010-2014 | Polaris | Ranger 800 Crew | Base |
| 2010-2012 | Polaris | Ranger 800 Crew EPS | Base |
| 2012-2013 | Polaris | Ranger 800 Crew EPS LE | Base |
| 2013-2014 | Polaris | Ranger 800 EFI | Base |
| 2013 | Polaris | Ranger 800 EFI EPS | Base |
| 2013-2014 | Polaris | Ranger 800 EFI EPS LE | Base |
| 2013 | Polaris | Ranger 800 EFI LE | Base |
| 2013-2014 | Polaris | Ranger 800 EFI Mid-Size | Base |
| 2013 | Polaris | Ranger 800 EFI Mid-Size LE | Base |
| 2014 | Polaris | Ranger 800 EPS Mid-Size LE | Base |
| 2010 | Polaris | Ranger 800 HD | Base |
| 2011-2012 | Polaris | Ranger 800 HD EPS | Base |
| 2010-2012 | Polaris | Ranger 800 XP | Base |
| 2010-2012 | Polaris | Ranger 800 XP EPS | Base |
| 2012 | Polaris | Ranger 800 XP EPS LE | Base |
| 2012 | Polaris | Ranger 800 XP LE | Base |
| 2008-2009 | Polaris | Ranger Crew 700 | Base |
| 2009 | Polaris | Ranger HD 700 | Base |
| 2012-2013 | Polaris | Ranger RZR 4 800 | Base |
| 2013 | Polaris | Ranger RZR 4 800 EPS LE | Base |
| 2011 | Polaris | Ranger RZR 4 800 EPS Robby Gordon | Base |
| 2012 | Polaris | Ranger RZR 4 800 EPS Robby Gordon LE | Base |
| 2010-2012 | Polaris | Ranger RZR 4 800 Gordon Edition | Base |
| 2008-2013 | Polaris | Ranger RZR 800 | Base |
| 2010-2011 | Polaris | Ranger RZR 800 EPS | Base |
| 2012-2013 | Polaris | Ranger RZR 800 EPS LE | Base |
| 2012-2013 | Polaris | Ranger RZR 800 LE | Base |
| 2009-2013 | Polaris | Ranger RZR 800 S | Base |
| 2012-2013 | Polaris | Ranger RZR 800 S LE | Base |
| 2011 | Polaris | Ranger RZR 800 SW Military | Base |
| 2013 | Polaris | Ranger RZR S 800 EPS LE | Base |
| 2005-2009 | Polaris | Ranger XP 700 | Base |
| 2014 | Polaris | RZR 4 800 EPS LE | Base |
| 2014 | Polaris | RZR 800 | Base |
| 2014 | Polaris | RZR 800 EPS LE | Base |
| 2014 | Polaris | RZR 800 XC Edition | Base |
| 2014 | Polaris | RZR S 800 | Base |
| 2014 | Polaris | RZR S 800 EPS LE | Base |
| 1999-2000 | Polaris | Sportsman 335 | Base |
| 2003-2005 | Polaris | Sportsman 600 | Base |
| 2002-2006 | Polaris | Sportsman 700 | Base |
| 2004-2007 | Polaris | Sportsman 700 EFI | Base |
| 2008 | Polaris | Sportsman 700 EFI X2 | Base |
| 2006-2007 | Polaris | Sportsman 700 MV | Base |
| 2012-2014 | Polaris | Sportsman 800 6x6 Big Boss | Base |
| 2005-2014 | Polaris | Sportsman 800 EFI | Base |
| 2009-2011 | Polaris | Sportsman 800 EFI 6x6 Big Boss | Base |
| 2007 | Polaris | Sportsman 800 EFI Deluxe | Base |
| 2008-2010 | Polaris | Sportsman 800 EFI HO | Base |
| 2008-2009 | Polaris | Sportsman 800 EFI Touring | Base |
| 2007-2009 | Polaris | Sportsman 800 EFI X2 | Base |
| 2007 | Polaris | Sportsman 800 EFI X2 Deluxe | Base |
| 2012-2014 | Polaris | Sportsman Forest 800 | Base |
| 2012-2014 | Polaris | Sportsman Forest 800 6x6 | Base |
| 2005 | Polaris | Sportsman MV7 | Base |
| 2008 | Polaris | Turbo Dragon | Base |
| 2011-2012 | Polaris | Turbo IQ | Base |
| 2011-2012 | Polaris | Turbo IQ LX | Base |
| 2011-2014 | Polaris | Turbo IQ LXT | Base |
| 2010 | Polaris | Turbo LX | Base |
| 2008-2009 | Polaris | Turbo SwitchBack | Base |
| 2009-2010 | Polaris | WideTrak IQ | Base |
| 2004 | Porsche | 911 | 40th Anniversary Edition |
| 2003-2004,2006 | Porsche | 911 | Carrera |
| 2003-2004,2006 | Porsche | 911 | Carrera 4 |
| 2004-2008 | Porsche | 911 | Carrera 4S |
| 2006-2008 | Porsche | 911 | Carrera S |
| 2005 | Porsche | 911 | GT2 |
| 2007-2008 | Porsche | 911 | Targa 4S |
| 2005 | Porsche | 911 | Turbo |
| 2005 | Porsche | 911 | Turbo S |
| 2005-2008 | Porsche | Boxster | Base |
| 2008 | Porsche | Boxster | Limited Edition |
| 2008 | Porsche | Boxster | RS 60 Spyder |
| 2005-2008 | Porsche | Boxster | S |
| 2008 | Porsche | Boxster | S Limited Edition |
| 2003-2006 | Porsche | Cayenne | Turbo |
| 2006 | Porsche | Cayenne | Turbo S |
| 2007-2008 | Porsche | Cayman | Base |
| 2006-2008 | Porsche | Cayman | S |
| 2010 | Redline | Riot TS750 | Base |
| 2018 | Textron | Havoc X | Base |
| 2018 | Textron | Stampede | Base |
| 2018 | Textron | Stampede 4 | Base |
| 2018 | Textron | Stampede 4X | Base |
| 2018 | Textron | Stampede X | Base |
| 2012-2013 | Volkswagen | Beetle | Turbo |
| 2014-2015 | Volkswagen | CC | Executive |
| 2012-2013 | Volkswagen | CC | Lux |
| 2012 | Volkswagen | CC | Lux Limited |
| 2012 | Volkswagen | CC | Lux Plus |
| 2009-2011 | Volkswagen | CC | Luxury |
| 2011-2016 | Volkswagen | CC | R-Line |
| 2016-2017 | Volkswagen | CC | R-Line Executive |
| 2009-2017 | Volkswagen | CC | Sport |
| 2013 | Volkswagen | CC | Sport Plus |
| 2016 | Volkswagen | CC | Trend |
| 2007 | Volkswagen | Eos | 2.0T |
| 2007 | Volkswagen | Eos | Base |
| 2012-2015 | Volkswagen | Eos | Executive |
| 2015 | Volkswagen | Eos | Final Edition |
| 2008-2016 | Volkswagen | Eos | Komfort |
| 2008-2013 | Volkswagen | Eos | Lux |
| 2013-2014 | Volkswagen | Eos | Sport |
| 2008 | Volkswagen | Eos | Turbo |
| 2012-2013 | Volkswagen | Golf R | Base |
| 2006-2013 | Volkswagen | GTI | Base |
| 2014 | Volkswagen | GTI | Driver's Edition |
| 2007 | Volkswagen | GTI | Fahrenheit |
| 2014 | Volkswagen | GTI | Wolfsburg Edition |
| 2006-2007 | Volkswagen | Jetta | 2.0T |
| 2006-2009,2012-2013 | Volkswagen | Jetta | GLI |
| 2009 | Volkswagen | Jetta | SEL |
| 2008-2010 | Volkswagen | Jetta | Wolfsburg Edition |
| 2006-2007 | Volkswagen | Passat | 2.0T |
| 1992 | Volkswagen | Passat | CL |
| 1992-1993 | Volkswagen | Passat | GL |
| 2008-2010 | Volkswagen | Passat | Komfort |
| 2008 | Volkswagen | Passat | Lux |
| 2008 | Volkswagen | Passat | Turbo |
| 2006-2007 | Volkswagen | Passat | Value Edition |