NGK Iridium IX CR8EIX Spark Plug Box of 4 — Fits Many Vehicles

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Iridium IX CR8EIX Spark Plugs – Ultimate Performance Upgrade

Elevate your driving experience with NGK Iridium IX spark plugs, meticulously engineered for the performance enthusiast. These plugs are designed to deliver exceptional acceleration, improved fuel efficiency, and outstanding durability, making them a top choice for those seeking the best from their engine. The Iridium IX series features extreme ignitability and remarkable anti-fouling capabilities, ensuring a strong and consistent spark under all conditions. The advanced design includes a tapered-cut ground electrode that enhances starting, idling, and throttle response, providing a more refined and powerful engine operation.

Experience the Iridium Advantage:

  • Extreme Ignitability: The fine-wire iridium center electrode ensures a powerful spark for optimal combustion.
  • Enhanced Performance: Enjoy improved acceleration, smoother throttle response, and better fuel economy.
  • Exceptional Durability: Iridium is one of the hardest metals, offering six times the durability of platinum for extended plug life.
  • Superior Anti-Fouling: The design minimizes the risk of plug fouling, maintaining performance over time.
  • Tapered Ground Electrode: Contributes to easier starting, smoother idling, and a more responsive throttle.

NGK's commitment to innovation is evident in the Iridium IX plugs, utilizing an alloy with an extremely high melting point, perfect for the demands of today's high-performance engines. For those looking to push the boundaries further, consider NGK's Ruthenium HX plugs. Trust NGK for cutting-edge ignition technology. Discover the difference NGK Iridium IX spark plugs can make for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2004 Aprilia Scarabeo 125 Base
1999-2004 Aprilia Scarabeo 150 Base
2011-2012 Arctic Cat 350 Base
2009 Arctic Cat 366 4x4 Auto Base
2010-2011 Arctic Cat 366 4x4 Auto SE Base
2014-2015 Arctic Cat 400 Base
1998 Arctic Cat 400 2x4 Base
1998 Arctic Cat 400 4x4 Base
2009-2010 Arctic Cat 400 4x4 Auto TRV Base
2013 Arctic Cat 400 Core Base
1998 Arctic Cat 500 4x4 Base
2016-2017 Arctic Cat Alterra 400 Base
2016 Arctic Cat Bearcat 3000 LT Base
1997-1998 Arctic Cat Bearcat 454 2x4 Base
1996-1998 Arctic Cat Bearcat 454 4x4 Base
2018-2019 Arctic Cat M 9000 King Cat 162 Base
2018 Arctic Cat M 9000 Sno Pro 162 Base
2018 Arctic Cat Pantera 3000 Base
2014 Arctic Cat TRV 400 Base
2013 Arctic Cat TRV 400 Core Base
2017-2019 Arctic Cat XF 9000 Cross Country Limited Base
2018 Arctic Cat XF 9000 Crosstour Base
2017-2018 Arctic Cat XF 9000 Crosstrek Base
2017-2018 Arctic Cat XF 9000 High Country Limited 141 Base
2017-2019 Arctic Cat XF 9000 High Country Limited 153 Base
2018 Arctic Cat ZR 3000 Base
2017 Arctic Cat ZR 9000 LXR Base
2019 Arctic Cat ZR 9000 Limited Base
2017 Arctic Cat ZR 9000 Limited 129 Base
2017 Arctic Cat ZR 9000 Limited 137 Base
2019 Arctic Cat ZR 9000 Limited iACT Base
2017 Arctic Cat ZR 9000 RR 129 Base
2017-2019 Arctic Cat ZR 9000 RR 137 Base
2018-2019 Arctic Cat ZR 9000 Sno Pro 129 Base
2017-2019 Arctic Cat ZR 9000 Sno Pro 137 Base
2017-2019 Arctic Cat ZR 9000 Thundercat Base
2019 Arctic Cat ZR 9000 Thundercat iACT Base
2007-2019 Can-Am DS 250 Base
2005-2010 E-TON Vector 250R Base
1994-1996 Ferrari F355 Berlinetta Base
2010-2011 Gas Gas EC 250 4T Base
2010 Gas Gas EC 450 Base
2004-2005 Gas Gas EC 450 FSE Base
2004 Gas Gas SM 450 FSE Base
2003-2005 Gas Gas Wild HP 450 Base
2007-2008 Gas Gas Wild HP 450 Base
2009 Gas Gas Wild HP 515 Base
1998-1999 Husaberg FC400 Base
1993-1996 Husaberg FC600 Base
1999-2000 Husaberg FC600 Base
1991-1996 Husaberg FE350 Base
1997-1999 Husaberg FE400 Base
1991-1994 Husaberg FE501 Base
1996-1999 Husaberg FE501E Base
1993-1996 Husaberg FE600 Base
2000 Husaberg FE600 Base
1999-2000 Husaberg FE600E Base
1999 Husaberg FS600E Base
1997-1998 Husaberg FX501E Base
1997-2000 Husaberg FX600E Base

…and 232 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Iridium IX CR8EIX Spark Plugs – Ultimate Performance Upgrade

Elevate your driving experience with NGK Iridium IX spark plugs, meticulously engineered for the performance enthusiast. These plugs are designed to deliver exceptional acceleration, improved fuel efficiency, and outstanding durability, making them a top choice for those seeking the best from their engine. The Iridium IX series features extreme ignitability and remarkable anti-fouling capabilities, ensuring a strong and consistent spark under all conditions. The advanced design includes a tapered-cut ground electrode that enhances starting, idling, and throttle response, providing a more refined and powerful engine operation.

Experience the Iridium Advantage:

  • Extreme Ignitability: The fine-wire iridium center electrode ensures a powerful spark for optimal combustion.
  • Enhanced Performance: Enjoy improved acceleration, smoother throttle response, and better fuel economy.
  • Exceptional Durability: Iridium is one of the hardest metals, offering six times the durability of platinum for extended plug life.
  • Superior Anti-Fouling: The design minimizes the risk of plug fouling, maintaining performance over time.
  • Tapered Ground Electrode: Contributes to easier starting, smoother idling, and a more responsive throttle.

NGK's commitment to innovation is evident in the Iridium IX plugs, utilizing an alloy with an extremely high melting point, perfect for the demands of today's high-performance engines. For those looking to push the boundaries further, consider NGK's Ruthenium HX plugs. Trust NGK for cutting-edge ignition technology. Discover the difference NGK Iridium IX spark plugs can make for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2004 Aprilia Scarabeo 125 Base
1999-2004 Aprilia Scarabeo 150 Base
2011-2012 Arctic Cat 350 Base
2009 Arctic Cat 366 4x4 Auto Base
2010-2011 Arctic Cat 366 4x4 Auto SE Base
2014-2015 Arctic Cat 400 Base
1998 Arctic Cat 400 2x4 Base
1998 Arctic Cat 400 4x4 Base
2009-2010 Arctic Cat 400 4x4 Auto TRV Base
2013 Arctic Cat 400 Core Base
1998 Arctic Cat 500 4x4 Base
2016-2017 Arctic Cat Alterra 400 Base
2016 Arctic Cat Bearcat 3000 LT Base
1997-1998 Arctic Cat Bearcat 454 2x4 Base
1996-1998 Arctic Cat Bearcat 454 4x4 Base
2018-2019 Arctic Cat M 9000 King Cat 162 Base
2018 Arctic Cat M 9000 Sno Pro 162 Base
2018 Arctic Cat Pantera 3000 Base
2014 Arctic Cat TRV 400 Base
2013 Arctic Cat TRV 400 Core Base
2017-2019 Arctic Cat XF 9000 Cross Country Limited Base
2018 Arctic Cat XF 9000 Crosstour Base
2017-2018 Arctic Cat XF 9000 Crosstrek Base
2017-2018 Arctic Cat XF 9000 High Country Limited 141 Base
2017-2019 Arctic Cat XF 9000 High Country Limited 153 Base
2018 Arctic Cat ZR 3000 Base
2017 Arctic Cat ZR 9000 LXR Base
2019 Arctic Cat ZR 9000 Limited Base
2017 Arctic Cat ZR 9000 Limited 129 Base
2017 Arctic Cat ZR 9000 Limited 137 Base
2019 Arctic Cat ZR 9000 Limited iACT Base
2017 Arctic Cat ZR 9000 RR 129 Base
2017-2019 Arctic Cat ZR 9000 RR 137 Base
2018-2019 Arctic Cat ZR 9000 Sno Pro 129 Base
2017-2019 Arctic Cat ZR 9000 Sno Pro 137 Base
2017-2019 Arctic Cat ZR 9000 Thundercat Base
2019 Arctic Cat ZR 9000 Thundercat iACT Base
2007-2019 Can-Am DS 250 Base
2005-2010 E-TON Vector 250R Base
1994-1996 Ferrari F355 Berlinetta Base
2010-2011 Gas Gas EC 250 4T Base
2010 Gas Gas EC 450 Base
2004-2005 Gas Gas EC 450 FSE Base
2004 Gas Gas SM 450 FSE Base
2003-2005 Gas Gas Wild HP 450 Base
2007-2008 Gas Gas Wild HP 450 Base
2009 Gas Gas Wild HP 515 Base
1998-1999 Husaberg FC400 Base
1993-1996 Husaberg FC600 Base
1999-2000 Husaberg FC600 Base
1991-1996 Husaberg FE350 Base
1997-1999 Husaberg FE400 Base
1991-1994 Husaberg FE501 Base
1996-1999 Husaberg FE501E Base
1993-1996 Husaberg FE600 Base
2000 Husaberg FE600 Base
1999-2000 Husaberg FE600E Base
1999 Husaberg FS600E Base
1997-1998 Husaberg FX501E Base
1997-2000 Husaberg FX600E Base

…and 232 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Iridium IX CR8EIX Spark Plugs – Ultimate Performance Upgrade

Elevate your driving experience with NGK Iridium IX spark plugs, meticulously engineered for the performance enthusiast. These plugs are designed to deliver exceptional acceleration, improved fuel efficiency, and outstanding durability, making them a top choice for those seeking the best from their engine. The Iridium IX series features extreme ignitability and remarkable anti-fouling capabilities, ensuring a strong and consistent spark under all conditions. The advanced design includes a tapered-cut ground electrode that enhances starting, idling, and throttle response, providing a more refined and powerful engine operation.

Experience the Iridium Advantage:

  • Extreme Ignitability: The fine-wire iridium center electrode ensures a powerful spark for optimal combustion.
  • Enhanced Performance: Enjoy improved acceleration, smoother throttle response, and better fuel economy.
  • Exceptional Durability: Iridium is one of the hardest metals, offering six times the durability of platinum for extended plug life.
  • Superior Anti-Fouling: The design minimizes the risk of plug fouling, maintaining performance over time.
  • Tapered Ground Electrode: Contributes to easier starting, smoother idling, and a more responsive throttle.

NGK's commitment to innovation is evident in the Iridium IX plugs, utilizing an alloy with an extremely high melting point, perfect for the demands of today's high-performance engines. For those looking to push the boundaries further, consider NGK's Ruthenium HX plugs. Trust NGK for cutting-edge ignition technology. Discover the difference NGK Iridium IX spark plugs can make for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2004 Aprilia Scarabeo 125 Base
1999-2004 Aprilia Scarabeo 150 Base
2011-2012 Arctic Cat 350 Base
2009 Arctic Cat 366 4x4 Auto Base
2010-2011 Arctic Cat 366 4x4 Auto SE Base
2014-2015 Arctic Cat 400 Base
1998 Arctic Cat 400 2x4 Base
1998 Arctic Cat 400 4x4 Base
2009-2010 Arctic Cat 400 4x4 Auto TRV Base
2013 Arctic Cat 400 Core Base
1998 Arctic Cat 500 4x4 Base
2016-2017 Arctic Cat Alterra 400 Base
2016 Arctic Cat Bearcat 3000 LT Base
1997-1998 Arctic Cat Bearcat 454 2x4 Base
1996-1998 Arctic Cat Bearcat 454 4x4 Base
2018-2019 Arctic Cat M 9000 King Cat 162 Base
2018 Arctic Cat M 9000 Sno Pro 162 Base
2018 Arctic Cat Pantera 3000 Base
2014 Arctic Cat TRV 400 Base
2013 Arctic Cat TRV 400 Core Base
2017-2019 Arctic Cat XF 9000 Cross Country Limited Base
2018 Arctic Cat XF 9000 Crosstour Base
2017-2018 Arctic Cat XF 9000 Crosstrek Base
2017-2018 Arctic Cat XF 9000 High Country Limited 141 Base
2017-2019 Arctic Cat XF 9000 High Country Limited 153 Base
2018 Arctic Cat ZR 3000 Base
2017 Arctic Cat ZR 9000 LXR Base
2019 Arctic Cat ZR 9000 Limited Base
2017 Arctic Cat ZR 9000 Limited 129 Base
2017 Arctic Cat ZR 9000 Limited 137 Base
2019 Arctic Cat ZR 9000 Limited iACT Base
2017 Arctic Cat ZR 9000 RR 129 Base
2017-2019 Arctic Cat ZR 9000 RR 137 Base
2018-2019 Arctic Cat ZR 9000 Sno Pro 129 Base
2017-2019 Arctic Cat ZR 9000 Sno Pro 137 Base
2017-2019 Arctic Cat ZR 9000 Thundercat Base
2019 Arctic Cat ZR 9000 Thundercat iACT Base
2007-2019 Can-Am DS 250 Base
2005-2010 E-TON Vector 250R Base
1994-1996 Ferrari F355 Berlinetta Base
2010-2011 Gas Gas EC 250 4T Base
2010 Gas Gas EC 450 Base
2004-2005 Gas Gas EC 450 FSE Base
2004 Gas Gas SM 450 FSE Base
2003-2005 Gas Gas Wild HP 450 Base
2007-2008 Gas Gas Wild HP 450 Base
2009 Gas Gas Wild HP 515 Base
1998-1999 Husaberg FC400 Base
1993-1996 Husaberg FC600 Base
1999-2000 Husaberg FC600 Base
1991-1996 Husaberg FE350 Base
1997-1999 Husaberg FE400 Base
1991-1994 Husaberg FE501 Base
1996-1999 Husaberg FE501E Base
1993-1996 Husaberg FE600 Base
2000 Husaberg FE600 Base
1999-2000 Husaberg FE600E Base
1999 Husaberg FS600E Base
1997-1998 Husaberg FX501E Base
1997-2000 Husaberg FX600E Base

…and 232 additional fitments. Contact us to confirm yours.

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