NGK IX Iridium Spark Plug Box of 4 (TR5IX) — Fits Various Ford & GM 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 Spark Plugs - Unleash Peak Engine Performance

Experience a significant upgrade in your vehicle's performance with the NGK TR5IX Iridium IX Spark Plugs. Engineered for the demands of high-performance driving, these plugs offer exceptional ignitability, leading to improved acceleration, better fuel economy, and extended durability. The Iridium IX series is the choice for enthusiasts seeking the ultimate in ignition technology.

Key Features for Superior Performance:

  • 0.6mm Iridium Fine Wire Center Electrode: Provides extreme ignitability, ensuring a strong and consistent spark for optimal combustion, even under demanding conditions.
  • Enhanced Durability: The iridium alloy center electrode is up to six times harder than platinum, offering superior resistance to wear and providing a longer service life.
  • Tapered Cut Ground Electrode: This design promotes easier ignition of the air-fuel mixture, resulting in improved starting, idling, and throttle response.
  • Exceptional Anti-Fouling: The advanced design helps prevent carbon and oil fouling, maintaining consistent performance and engine health over time.
  • High Melting Point: Iridium's extremely high melting point makes these plugs ideal for high-temperature engine environments, ensuring reliability and performance.
  • Optimized for Power and Efficiency: Designed to maximize combustion efficiency, translating into noticeable gains in horsepower and improved fuel economy.

NGK Iridium IX spark plugs are the perfect choice for drivers who demand the best from their ignition system. Whether you're modifying your vehicle for performance or simply seeking a reliable, long-lasting replacement, the TR5IX delivers unparalleled results. Feel the difference in power, responsiveness, and efficiency.

Get the best ignition parts for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004 Aston Martin DB7 GT
2004 Aston Martin DB7 Vantage
2004 Aston Martin DB7 Vantage Volante
1990-1991 Audi V8 Quattro Base
1986 Buick Century T-Type
1986-1988 Buick Century Custom
1986-1988 Buick Century Estate Wagon
1986-1988 Buick Century Limited
1986-1987 Buick Electra Limited
1986-1987 Buick Electra Park Avenue
1986-1987 Buick Electra T-Type
2008-2009 Buick LaCrosse Super
1986-1988 Buick LeSabre Custom
1986-1988 Buick LeSabre Limited
1987 Buick LeSabre T-Type
1987-1988 Buick LeSabre Base
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
1986-1987 Buick Riviera Luxury
1986-1987 Buick Riviera T-Type
1986-1988 Buick Skylark Custom
1986-1988 Buick Skylark Limited
1986 Buick Somerset T-Type
1986-1987 Buick Somerset Limited
1986-1987 Buick Somerset Custom
1985 Buick Somerset Regal Base
1985 Buick Somerset Regal Limited
2004-2007 Cadillac CTS V
2002-2014 Cadillac Escalade Base
2008-2014 Cadillac Escalade Platinum
2009-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
2011-2014 Cadillac Escalade Luxury
2011-2014 Cadillac Escalade Premium
2003-2014 Cadillac Escalade ESV Base
2008-2014 Cadillac Escalade ESV Platinum
2011-2014 Cadillac Escalade ESV Premium
2011-2014 Cadillac Escalade ESV Luxury
2002-2013 Cadillac Escalade EXT Base
2011-2013 Cadillac Escalade EXT Luxury
2011-2013 Cadillac Escalade EXT Premium
2004-2006 Cadillac SRX Base
2005-2006 Cadillac STS Base
2004-2006 Cadillac XLR Base
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2003 Chevrolet Avalanche 1500 North Face
2002-2003 Chevrolet Avalanche 1500 On Road Edition
2002-2005 Chevrolet Avalanche 1500 Base
2002-2006 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Avalanche 1500 WBH
2004-2006 Chevrolet Avalanche 1500 Z66
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
1998-2002 Chevrolet Camaro Z28
1998-2002 Chevrolet Camaro Z28 SS

…and 305 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 Spark Plugs - Unleash Peak Engine Performance

Experience a significant upgrade in your vehicle's performance with the NGK TR5IX Iridium IX Spark Plugs. Engineered for the demands of high-performance driving, these plugs offer exceptional ignitability, leading to improved acceleration, better fuel economy, and extended durability. The Iridium IX series is the choice for enthusiasts seeking the ultimate in ignition technology.

Key Features for Superior Performance:

  • 0.6mm Iridium Fine Wire Center Electrode: Provides extreme ignitability, ensuring a strong and consistent spark for optimal combustion, even under demanding conditions.
  • Enhanced Durability: The iridium alloy center electrode is up to six times harder than platinum, offering superior resistance to wear and providing a longer service life.
  • Tapered Cut Ground Electrode: This design promotes easier ignition of the air-fuel mixture, resulting in improved starting, idling, and throttle response.
  • Exceptional Anti-Fouling: The advanced design helps prevent carbon and oil fouling, maintaining consistent performance and engine health over time.
  • High Melting Point: Iridium's extremely high melting point makes these plugs ideal for high-temperature engine environments, ensuring reliability and performance.
  • Optimized for Power and Efficiency: Designed to maximize combustion efficiency, translating into noticeable gains in horsepower and improved fuel economy.

NGK Iridium IX spark plugs are the perfect choice for drivers who demand the best from their ignition system. Whether you're modifying your vehicle for performance or simply seeking a reliable, long-lasting replacement, the TR5IX delivers unparalleled results. Feel the difference in power, responsiveness, and efficiency.

Get the best ignition parts for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004 Aston Martin DB7 GT
2004 Aston Martin DB7 Vantage
2004 Aston Martin DB7 Vantage Volante
1990-1991 Audi V8 Quattro Base
1986 Buick Century T-Type
1986-1988 Buick Century Custom
1986-1988 Buick Century Estate Wagon
1986-1988 Buick Century Limited
1986-1987 Buick Electra Limited
1986-1987 Buick Electra Park Avenue
1986-1987 Buick Electra T-Type
2008-2009 Buick LaCrosse Super
1986-1988 Buick LeSabre Custom
1986-1988 Buick LeSabre Limited
1987 Buick LeSabre T-Type
1987-1988 Buick LeSabre Base
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
1986-1987 Buick Riviera Luxury
1986-1987 Buick Riviera T-Type
1986-1988 Buick Skylark Custom
1986-1988 Buick Skylark Limited
1986 Buick Somerset T-Type
1986-1987 Buick Somerset Limited
1986-1987 Buick Somerset Custom
1985 Buick Somerset Regal Base
1985 Buick Somerset Regal Limited
2004-2007 Cadillac CTS V
2002-2014 Cadillac Escalade Base
2008-2014 Cadillac Escalade Platinum
2009-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
2011-2014 Cadillac Escalade Luxury
2011-2014 Cadillac Escalade Premium
2003-2014 Cadillac Escalade ESV Base
2008-2014 Cadillac Escalade ESV Platinum
2011-2014 Cadillac Escalade ESV Premium
2011-2014 Cadillac Escalade ESV Luxury
2002-2013 Cadillac Escalade EXT Base
2011-2013 Cadillac Escalade EXT Luxury
2011-2013 Cadillac Escalade EXT Premium
2004-2006 Cadillac SRX Base
2005-2006 Cadillac STS Base
2004-2006 Cadillac XLR Base
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2003 Chevrolet Avalanche 1500 North Face
2002-2003 Chevrolet Avalanche 1500 On Road Edition
2002-2005 Chevrolet Avalanche 1500 Base
2002-2006 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Avalanche 1500 WBH
2004-2006 Chevrolet Avalanche 1500 Z66
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
1998-2002 Chevrolet Camaro Z28
1998-2002 Chevrolet Camaro Z28 SS

…and 305 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 Spark Plugs - Unleash Peak Engine Performance

Experience a significant upgrade in your vehicle's performance with the NGK TR5IX Iridium IX Spark Plugs. Engineered for the demands of high-performance driving, these plugs offer exceptional ignitability, leading to improved acceleration, better fuel economy, and extended durability. The Iridium IX series is the choice for enthusiasts seeking the ultimate in ignition technology.

Key Features for Superior Performance:

  • 0.6mm Iridium Fine Wire Center Electrode: Provides extreme ignitability, ensuring a strong and consistent spark for optimal combustion, even under demanding conditions.
  • Enhanced Durability: The iridium alloy center electrode is up to six times harder than platinum, offering superior resistance to wear and providing a longer service life.
  • Tapered Cut Ground Electrode: This design promotes easier ignition of the air-fuel mixture, resulting in improved starting, idling, and throttle response.
  • Exceptional Anti-Fouling: The advanced design helps prevent carbon and oil fouling, maintaining consistent performance and engine health over time.
  • High Melting Point: Iridium's extremely high melting point makes these plugs ideal for high-temperature engine environments, ensuring reliability and performance.
  • Optimized for Power and Efficiency: Designed to maximize combustion efficiency, translating into noticeable gains in horsepower and improved fuel economy.

NGK Iridium IX spark plugs are the perfect choice for drivers who demand the best from their ignition system. Whether you're modifying your vehicle for performance or simply seeking a reliable, long-lasting replacement, the TR5IX delivers unparalleled results. Feel the difference in power, responsiveness, and efficiency.

Get the best ignition parts for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004 Aston Martin DB7 GT
2004 Aston Martin DB7 Vantage
2004 Aston Martin DB7 Vantage Volante
1990-1991 Audi V8 Quattro Base
1986 Buick Century T-Type
1986-1988 Buick Century Custom
1986-1988 Buick Century Estate Wagon
1986-1988 Buick Century Limited
1986-1987 Buick Electra Limited
1986-1987 Buick Electra Park Avenue
1986-1987 Buick Electra T-Type
2008-2009 Buick LaCrosse Super
1986-1988 Buick LeSabre Custom
1986-1988 Buick LeSabre Limited
1987 Buick LeSabre T-Type
1987-1988 Buick LeSabre Base
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
1986-1987 Buick Riviera Luxury
1986-1987 Buick Riviera T-Type
1986-1988 Buick Skylark Custom
1986-1988 Buick Skylark Limited
1986 Buick Somerset T-Type
1986-1987 Buick Somerset Limited
1986-1987 Buick Somerset Custom
1985 Buick Somerset Regal Base
1985 Buick Somerset Regal Limited
2004-2007 Cadillac CTS V
2002-2014 Cadillac Escalade Base
2008-2014 Cadillac Escalade Platinum
2009-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
2011-2014 Cadillac Escalade Luxury
2011-2014 Cadillac Escalade Premium
2003-2014 Cadillac Escalade ESV Base
2008-2014 Cadillac Escalade ESV Platinum
2011-2014 Cadillac Escalade ESV Premium
2011-2014 Cadillac Escalade ESV Luxury
2002-2013 Cadillac Escalade EXT Base
2011-2013 Cadillac Escalade EXT Luxury
2011-2013 Cadillac Escalade EXT Premium
2004-2006 Cadillac SRX Base
2005-2006 Cadillac STS Base
2004-2006 Cadillac XLR Base
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2003 Chevrolet Avalanche 1500 North Face
2002-2003 Chevrolet Avalanche 1500 On Road Edition
2002-2005 Chevrolet Avalanche 1500 Base
2002-2006 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Avalanche 1500 WBH
2004-2006 Chevrolet Avalanche 1500 Z66
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
1998-2002 Chevrolet Camaro Z28
1998-2002 Chevrolet Camaro Z28 SS

…and 305 additional fitments. Contact us to confirm yours.

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