NGK LTR5IX-11 Single Iridium IX Spark Plug — Fits Various Ford, Chevrolet, GMC, Buick, Isuzu

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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 LTR5IX-11 Iridium IX Spark Plugs: Precision Performance

Elevate your vehicle's ignition system with the NGK LTR5IX-11 Iridium IX spark plugs. Engineered for the performance enthusiast, these plugs deliver a significant boost in acceleration, improved fuel efficiency, and exceptional durability. The Iridium IX series is renowned for its extreme ignitability and superior anti-fouling properties, ensuring optimal combustion under all conditions.

Key Features and Benefits:

  • Extreme Ignitability: The fine-wire iridium center electrode ensures a strong, consistent spark.
  • Enhanced Durability: Iridium is six times harder than platinum, offering a longer service life.
  • Improved Throttle Response: A tapered-cut ground electrode enhances starting, idling, and throttle response.
  • High Melting Point: The iridium alloy's extremely high melting point is ideal for today's demanding engines.
  • Versatile Fitment: Designed to fit a wide range of vehicles including Ford Contour, Focus, Escape, Chevrolet Trailblazer, GMC Envoy, and more.

NGK's commitment to quality means these spark plugs are built to last, providing reliable performance mile after mile. For those seeking the ultimate in ignition technology, consider upgrading to NGK Ruthenium HX plugs. Experience the difference that precision engineering makes for your vehicle's performance and efficiency. Choose NGK for unparalleled ignition quality at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2017-2020 Buick Envision Base
2017-2020 Buick Envision Essence
2017-2020 Buick Envision Preferred
2019 Buick Envision Premium
2010-2011 Buick LaCrosse CX
2011 Buick LaCrosse CXL
2012 Buick LaCrosse Premium
2012 Buick LaCrosse Convenience
2012-2016 Buick LaCrosse Leather
2012-2016 Buick LaCrosse Base
2018-2019 Buick LaCrosse Essence
2018-2019 Buick LaCrosse Preferred
2018-2019 Buick LaCrosse Premium
2018-2019 Buick LaCrosse Base
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
2011 Buick Regal CXL
2012-2013 Buick Regal GS
2012-2013 Buick Regal Premium
2012-2017 Buick Regal Base
2015-2016 Buick Regal Premium
2012-2016 Buick Verano Convenience
2012-2017 Buick Verano Base
2012-2017 Buick Verano Leather
2013 Buick Verano Turbo
2013-2016 Buick Verano Premium
2016-2017 Buick Verano Sport Touring
2013-2016 Cadillac ATS Base
2013-2016 Cadillac ATS Luxury
2016-2019 Cadillac CTS V
2015-2016 Cadillac Escalade Premium
2015-2020 Cadillac Escalade Base
2015-2020 Cadillac Escalade Luxury
2015-2020 Cadillac Escalade Platinum
2017-2020 Cadillac Escalade Premium Luxury
2015-2016 Cadillac Escalade ESV Premium
2015-2020 Cadillac Escalade ESV Base
2015-2020 Cadillac Escalade ESV Luxury
2015-2020 Cadillac Escalade ESV Platinum
2017-2020 Cadillac Escalade ESV Premium Luxury
2019 Chevrolet Blazer Base
2019-2020 Chevrolet Blazer L
2020 Chevrolet Blazer LT
2016-2020 Chevrolet Camaro SS
2017-2020 Chevrolet Camaro ZL1
2020 Chevrolet Camaro LT
2012-2015 Chevrolet Captiva Sport LS
2013-2015 Chevrolet Captiva Sport LT
2013-2015 Chevrolet Captiva Sport LTZ
2002-2005 Chevrolet Cavalier Base
2002-2005 Chevrolet Cavalier LS
2002-2005 Chevrolet Cavalier LS Sport
2004 Chevrolet Classic LS
2004-2005 Chevrolet Classic Base
2005 Chevrolet Cobalt Base
2005-2010 Chevrolet Cobalt LS
2005-2010 Chevrolet Cobalt LT
2006-2007 Chevrolet Cobalt LTZ
2006-2010 Chevrolet Cobalt SS
2008 Chevrolet Cobalt Sport

…and 310 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 LTR5IX-11 Iridium IX Spark Plugs: Precision Performance

Elevate your vehicle's ignition system with the NGK LTR5IX-11 Iridium IX spark plugs. Engineered for the performance enthusiast, these plugs deliver a significant boost in acceleration, improved fuel efficiency, and exceptional durability. The Iridium IX series is renowned for its extreme ignitability and superior anti-fouling properties, ensuring optimal combustion under all conditions.

Key Features and Benefits:

  • Extreme Ignitability: The fine-wire iridium center electrode ensures a strong, consistent spark.
  • Enhanced Durability: Iridium is six times harder than platinum, offering a longer service life.
  • Improved Throttle Response: A tapered-cut ground electrode enhances starting, idling, and throttle response.
  • High Melting Point: The iridium alloy's extremely high melting point is ideal for today's demanding engines.
  • Versatile Fitment: Designed to fit a wide range of vehicles including Ford Contour, Focus, Escape, Chevrolet Trailblazer, GMC Envoy, and more.

NGK's commitment to quality means these spark plugs are built to last, providing reliable performance mile after mile. For those seeking the ultimate in ignition technology, consider upgrading to NGK Ruthenium HX plugs. Experience the difference that precision engineering makes for your vehicle's performance and efficiency. Choose NGK for unparalleled ignition quality at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2017-2020 Buick Envision Base
2017-2020 Buick Envision Essence
2017-2020 Buick Envision Preferred
2019 Buick Envision Premium
2010-2011 Buick LaCrosse CX
2011 Buick LaCrosse CXL
2012 Buick LaCrosse Premium
2012 Buick LaCrosse Convenience
2012-2016 Buick LaCrosse Leather
2012-2016 Buick LaCrosse Base
2018-2019 Buick LaCrosse Essence
2018-2019 Buick LaCrosse Preferred
2018-2019 Buick LaCrosse Premium
2018-2019 Buick LaCrosse Base
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
2011 Buick Regal CXL
2012-2013 Buick Regal GS
2012-2013 Buick Regal Premium
2012-2017 Buick Regal Base
2015-2016 Buick Regal Premium
2012-2016 Buick Verano Convenience
2012-2017 Buick Verano Base
2012-2017 Buick Verano Leather
2013 Buick Verano Turbo
2013-2016 Buick Verano Premium
2016-2017 Buick Verano Sport Touring
2013-2016 Cadillac ATS Base
2013-2016 Cadillac ATS Luxury
2016-2019 Cadillac CTS V
2015-2016 Cadillac Escalade Premium
2015-2020 Cadillac Escalade Base
2015-2020 Cadillac Escalade Luxury
2015-2020 Cadillac Escalade Platinum
2017-2020 Cadillac Escalade Premium Luxury
2015-2016 Cadillac Escalade ESV Premium
2015-2020 Cadillac Escalade ESV Base
2015-2020 Cadillac Escalade ESV Luxury
2015-2020 Cadillac Escalade ESV Platinum
2017-2020 Cadillac Escalade ESV Premium Luxury
2019 Chevrolet Blazer Base
2019-2020 Chevrolet Blazer L
2020 Chevrolet Blazer LT
2016-2020 Chevrolet Camaro SS
2017-2020 Chevrolet Camaro ZL1
2020 Chevrolet Camaro LT
2012-2015 Chevrolet Captiva Sport LS
2013-2015 Chevrolet Captiva Sport LT
2013-2015 Chevrolet Captiva Sport LTZ
2002-2005 Chevrolet Cavalier Base
2002-2005 Chevrolet Cavalier LS
2002-2005 Chevrolet Cavalier LS Sport
2004 Chevrolet Classic LS
2004-2005 Chevrolet Classic Base
2005 Chevrolet Cobalt Base
2005-2010 Chevrolet Cobalt LS
2005-2010 Chevrolet Cobalt LT
2006-2007 Chevrolet Cobalt LTZ
2006-2010 Chevrolet Cobalt SS
2008 Chevrolet Cobalt Sport

…and 310 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 LTR5IX-11 Iridium IX Spark Plugs: Precision Performance

Elevate your vehicle's ignition system with the NGK LTR5IX-11 Iridium IX spark plugs. Engineered for the performance enthusiast, these plugs deliver a significant boost in acceleration, improved fuel efficiency, and exceptional durability. The Iridium IX series is renowned for its extreme ignitability and superior anti-fouling properties, ensuring optimal combustion under all conditions.

Key Features and Benefits:

  • Extreme Ignitability: The fine-wire iridium center electrode ensures a strong, consistent spark.
  • Enhanced Durability: Iridium is six times harder than platinum, offering a longer service life.
  • Improved Throttle Response: A tapered-cut ground electrode enhances starting, idling, and throttle response.
  • High Melting Point: The iridium alloy's extremely high melting point is ideal for today's demanding engines.
  • Versatile Fitment: Designed to fit a wide range of vehicles including Ford Contour, Focus, Escape, Chevrolet Trailblazer, GMC Envoy, and more.

NGK's commitment to quality means these spark plugs are built to last, providing reliable performance mile after mile. For those seeking the ultimate in ignition technology, consider upgrading to NGK Ruthenium HX plugs. Experience the difference that precision engineering makes for your vehicle's performance and efficiency. Choose NGK for unparalleled ignition quality at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2017-2020 Buick Envision Base
2017-2020 Buick Envision Essence
2017-2020 Buick Envision Preferred
2019 Buick Envision Premium
2010-2011 Buick LaCrosse CX
2011 Buick LaCrosse CXL
2012 Buick LaCrosse Premium
2012 Buick LaCrosse Convenience
2012-2016 Buick LaCrosse Leather
2012-2016 Buick LaCrosse Base
2018-2019 Buick LaCrosse Essence
2018-2019 Buick LaCrosse Preferred
2018-2019 Buick LaCrosse Premium
2018-2019 Buick LaCrosse Base
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
2011 Buick Regal CXL
2012-2013 Buick Regal GS
2012-2013 Buick Regal Premium
2012-2017 Buick Regal Base
2015-2016 Buick Regal Premium
2012-2016 Buick Verano Convenience
2012-2017 Buick Verano Base
2012-2017 Buick Verano Leather
2013 Buick Verano Turbo
2013-2016 Buick Verano Premium
2016-2017 Buick Verano Sport Touring
2013-2016 Cadillac ATS Base
2013-2016 Cadillac ATS Luxury
2016-2019 Cadillac CTS V
2015-2016 Cadillac Escalade Premium
2015-2020 Cadillac Escalade Base
2015-2020 Cadillac Escalade Luxury
2015-2020 Cadillac Escalade Platinum
2017-2020 Cadillac Escalade Premium Luxury
2015-2016 Cadillac Escalade ESV Premium
2015-2020 Cadillac Escalade ESV Base
2015-2020 Cadillac Escalade ESV Luxury
2015-2020 Cadillac Escalade ESV Platinum
2017-2020 Cadillac Escalade ESV Premium Luxury
2019 Chevrolet Blazer Base
2019-2020 Chevrolet Blazer L
2020 Chevrolet Blazer LT
2016-2020 Chevrolet Camaro SS
2017-2020 Chevrolet Camaro ZL1
2020 Chevrolet Camaro LT
2012-2015 Chevrolet Captiva Sport LS
2013-2015 Chevrolet Captiva Sport LT
2013-2015 Chevrolet Captiva Sport LTZ
2002-2005 Chevrolet Cavalier Base
2002-2005 Chevrolet Cavalier LS
2002-2005 Chevrolet Cavalier LS Sport
2004 Chevrolet Classic LS
2004-2005 Chevrolet Classic Base
2005 Chevrolet Cobalt Base
2005-2010 Chevrolet Cobalt LS
2005-2010 Chevrolet Cobalt LT
2006-2007 Chevrolet Cobalt LTZ
2006-2010 Chevrolet Cobalt SS
2008 Chevrolet Cobalt Sport

…and 310 additional fitments. Contact us to confirm yours.

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