NGK Iridium IX LTR6IX Spark Plugs (Box of 4) — Fits Ford, Mazda, Lincoln, Cadillac, Chevrolet, Land Rover

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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: Designed for Performance Enthusiasts

The NGK Iridium IX LTR6IX Spark Plugs (Box of 4) are specifically engineered for drivers who demand superior performance from their vehicles. These plugs provide outstanding acceleration, improved fuel efficiency, and exceptional durability. With NGK Iridium IX, you'll experience extreme ignitability and remarkable anti-fouling properties, ensuring consistent and reliable engine operation.

Key Performance Advantages:

  • Iridium Fine Wire Center Electrode: Six times harder than platinum, offering superior durability and a focused spark.
  • Tapered Cut Ground Electrode: Enhances starting, idling stability, and throttle response.
  • High Melting Point: Iridium alloy is perfectly suited for the demands of modern, high-performance engines.
  • Exceptional Anti-Fouling: Maintains clean electrodes for consistent spark delivery over time.

These Iridium IX spark plugs are an excellent upgrade for a wide range of vehicles, including Mazda 3 (2007-2009), Mazda 6 (2006-2007), Mazda CX-7 (2007-2009), Ford Flex (2010-2012), Ford F-150 (2011-2012), Ford Fiesta (2011-2012), Ford Focus (2012), Lincoln MKS/MKT (2010-2012), Cadillac ATS (2013), Chevrolet Malibu (2013), and Land Rover Range Rover Evoque (2012). For even greater performance, consider upgrading to an NGK Ruthenium HX plug. Elevate your driving experience with NGK Iridium IX, available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2016-2020 Buick Envision Premium
2014-2017 Buick Regal GS
2014-2017 Buick Regal Premium
2015-2017 Buick Regal Base
2016-2017 Buick Regal Sport Touring
2018-2019 Buick Regal Sportback Preferred II
2018-2020 Buick Regal Sportback Base
2018-2020 Buick Regal Sportback Essence
2018-2020 Buick Regal Sportback Preferred
2018-2020 Buick Regal TourX Base
2018-2020 Buick Regal TourX Essence
2018-2020 Buick Regal TourX Preferred
2013-2016 Cadillac ATS Performance
2013-2016 Cadillac ATS Premium
2013-2019 Cadillac ATS Luxury
2013-2019 Cadillac ATS Base
2016-2018 Cadillac CT6 Base
2016-2018 Cadillac CT6 Luxury
2017-2018 Cadillac CT6 Plug-In
2014-2016 Cadillac CTS Performance
2014-2016 Cadillac CTS Premium
2014-2019 Cadillac CTS Base
2014-2019 Cadillac CTS Luxury
2016-2020 Chevrolet Camaro LT
2017-2020 Chevrolet Camaro LS
2018-2020 Chevrolet Equinox LT
2018-2020 Chevrolet Equinox Premier
2013-2015 Chevrolet Malibu LTZ
2013-2016 Chevrolet Malibu LT
2016-2020 Chevrolet Malibu Premier
2018-2019 Chevrolet Traverse RS
2018-2020 Ford EcoSport S
2018-2020 Ford EcoSport SE
2018-2020 Ford EcoSport SES
2018-2020 Ford EcoSport Titanium
2012-2014 Ford Edge Limited
2012-2020 Ford Edge SE
2012-2020 Ford Edge SEL
2015-2020 Ford Edge Titanium
2013 Ford Escape SEL
2013-2019 Ford Escape Titanium
2013-2020 Ford Escape SE
2018-2020 Ford Escape SEL
2020 Ford Escape S
2015-2017 Ford Expedition EL King Ranch
2015-2017 Ford Expedition EL Limited
2015-2017 Ford Expedition EL Platinum
2015-2017 Ford Expedition EL XL
2015-2017 Ford Expedition EL XLT
2015-2017 Ford Expedition King Ranch
2015-2019 Ford Expedition Limited
2015-2019 Ford Expedition Platinum
2015-2019 Ford Expedition XL
2015-2019 Ford Expedition XLT
2016-2017 Ford Expedition EL SSV
2016-2019 Ford Expedition SSV
2018-2019 Ford Expedition Max Limited
2018-2019 Ford Expedition Max Platinum
2018-2019 Ford Expedition Max XL
2012-2019 Ford Explorer Base

…and 122 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: Designed for Performance Enthusiasts

The NGK Iridium IX LTR6IX Spark Plugs (Box of 4) are specifically engineered for drivers who demand superior performance from their vehicles. These plugs provide outstanding acceleration, improved fuel efficiency, and exceptional durability. With NGK Iridium IX, you'll experience extreme ignitability and remarkable anti-fouling properties, ensuring consistent and reliable engine operation.

Key Performance Advantages:

  • Iridium Fine Wire Center Electrode: Six times harder than platinum, offering superior durability and a focused spark.
  • Tapered Cut Ground Electrode: Enhances starting, idling stability, and throttle response.
  • High Melting Point: Iridium alloy is perfectly suited for the demands of modern, high-performance engines.
  • Exceptional Anti-Fouling: Maintains clean electrodes for consistent spark delivery over time.

These Iridium IX spark plugs are an excellent upgrade for a wide range of vehicles, including Mazda 3 (2007-2009), Mazda 6 (2006-2007), Mazda CX-7 (2007-2009), Ford Flex (2010-2012), Ford F-150 (2011-2012), Ford Fiesta (2011-2012), Ford Focus (2012), Lincoln MKS/MKT (2010-2012), Cadillac ATS (2013), Chevrolet Malibu (2013), and Land Rover Range Rover Evoque (2012). For even greater performance, consider upgrading to an NGK Ruthenium HX plug. Elevate your driving experience with NGK Iridium IX, available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2016-2020 Buick Envision Premium
2014-2017 Buick Regal GS
2014-2017 Buick Regal Premium
2015-2017 Buick Regal Base
2016-2017 Buick Regal Sport Touring
2018-2019 Buick Regal Sportback Preferred II
2018-2020 Buick Regal Sportback Base
2018-2020 Buick Regal Sportback Essence
2018-2020 Buick Regal Sportback Preferred
2018-2020 Buick Regal TourX Base
2018-2020 Buick Regal TourX Essence
2018-2020 Buick Regal TourX Preferred
2013-2016 Cadillac ATS Performance
2013-2016 Cadillac ATS Premium
2013-2019 Cadillac ATS Luxury
2013-2019 Cadillac ATS Base
2016-2018 Cadillac CT6 Base
2016-2018 Cadillac CT6 Luxury
2017-2018 Cadillac CT6 Plug-In
2014-2016 Cadillac CTS Performance
2014-2016 Cadillac CTS Premium
2014-2019 Cadillac CTS Base
2014-2019 Cadillac CTS Luxury
2016-2020 Chevrolet Camaro LT
2017-2020 Chevrolet Camaro LS
2018-2020 Chevrolet Equinox LT
2018-2020 Chevrolet Equinox Premier
2013-2015 Chevrolet Malibu LTZ
2013-2016 Chevrolet Malibu LT
2016-2020 Chevrolet Malibu Premier
2018-2019 Chevrolet Traverse RS
2018-2020 Ford EcoSport S
2018-2020 Ford EcoSport SE
2018-2020 Ford EcoSport SES
2018-2020 Ford EcoSport Titanium
2012-2014 Ford Edge Limited
2012-2020 Ford Edge SE
2012-2020 Ford Edge SEL
2015-2020 Ford Edge Titanium
2013 Ford Escape SEL
2013-2019 Ford Escape Titanium
2013-2020 Ford Escape SE
2018-2020 Ford Escape SEL
2020 Ford Escape S
2015-2017 Ford Expedition EL King Ranch
2015-2017 Ford Expedition EL Limited
2015-2017 Ford Expedition EL Platinum
2015-2017 Ford Expedition EL XL
2015-2017 Ford Expedition EL XLT
2015-2017 Ford Expedition King Ranch
2015-2019 Ford Expedition Limited
2015-2019 Ford Expedition Platinum
2015-2019 Ford Expedition XL
2015-2019 Ford Expedition XLT
2016-2017 Ford Expedition EL SSV
2016-2019 Ford Expedition SSV
2018-2019 Ford Expedition Max Limited
2018-2019 Ford Expedition Max Platinum
2018-2019 Ford Expedition Max XL
2012-2019 Ford Explorer Base

…and 122 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: Designed for Performance Enthusiasts

The NGK Iridium IX LTR6IX Spark Plugs (Box of 4) are specifically engineered for drivers who demand superior performance from their vehicles. These plugs provide outstanding acceleration, improved fuel efficiency, and exceptional durability. With NGK Iridium IX, you'll experience extreme ignitability and remarkable anti-fouling properties, ensuring consistent and reliable engine operation.

Key Performance Advantages:

  • Iridium Fine Wire Center Electrode: Six times harder than platinum, offering superior durability and a focused spark.
  • Tapered Cut Ground Electrode: Enhances starting, idling stability, and throttle response.
  • High Melting Point: Iridium alloy is perfectly suited for the demands of modern, high-performance engines.
  • Exceptional Anti-Fouling: Maintains clean electrodes for consistent spark delivery over time.

These Iridium IX spark plugs are an excellent upgrade for a wide range of vehicles, including Mazda 3 (2007-2009), Mazda 6 (2006-2007), Mazda CX-7 (2007-2009), Ford Flex (2010-2012), Ford F-150 (2011-2012), Ford Fiesta (2011-2012), Ford Focus (2012), Lincoln MKS/MKT (2010-2012), Cadillac ATS (2013), Chevrolet Malibu (2013), and Land Rover Range Rover Evoque (2012). For even greater performance, consider upgrading to an NGK Ruthenium HX plug. Elevate your driving experience with NGK Iridium IX, available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2016-2020 Buick Envision Premium
2014-2017 Buick Regal GS
2014-2017 Buick Regal Premium
2015-2017 Buick Regal Base
2016-2017 Buick Regal Sport Touring
2018-2019 Buick Regal Sportback Preferred II
2018-2020 Buick Regal Sportback Base
2018-2020 Buick Regal Sportback Essence
2018-2020 Buick Regal Sportback Preferred
2018-2020 Buick Regal TourX Base
2018-2020 Buick Regal TourX Essence
2018-2020 Buick Regal TourX Preferred
2013-2016 Cadillac ATS Performance
2013-2016 Cadillac ATS Premium
2013-2019 Cadillac ATS Luxury
2013-2019 Cadillac ATS Base
2016-2018 Cadillac CT6 Base
2016-2018 Cadillac CT6 Luxury
2017-2018 Cadillac CT6 Plug-In
2014-2016 Cadillac CTS Performance
2014-2016 Cadillac CTS Premium
2014-2019 Cadillac CTS Base
2014-2019 Cadillac CTS Luxury
2016-2020 Chevrolet Camaro LT
2017-2020 Chevrolet Camaro LS
2018-2020 Chevrolet Equinox LT
2018-2020 Chevrolet Equinox Premier
2013-2015 Chevrolet Malibu LTZ
2013-2016 Chevrolet Malibu LT
2016-2020 Chevrolet Malibu Premier
2018-2019 Chevrolet Traverse RS
2018-2020 Ford EcoSport S
2018-2020 Ford EcoSport SE
2018-2020 Ford EcoSport SES
2018-2020 Ford EcoSport Titanium
2012-2014 Ford Edge Limited
2012-2020 Ford Edge SE
2012-2020 Ford Edge SEL
2015-2020 Ford Edge Titanium
2013 Ford Escape SEL
2013-2019 Ford Escape Titanium
2013-2020 Ford Escape SE
2018-2020 Ford Escape SEL
2020 Ford Escape S
2015-2017 Ford Expedition EL King Ranch
2015-2017 Ford Expedition EL Limited
2015-2017 Ford Expedition EL Platinum
2015-2017 Ford Expedition EL XL
2015-2017 Ford Expedition EL XLT
2015-2017 Ford Expedition King Ranch
2015-2019 Ford Expedition Limited
2015-2019 Ford Expedition Platinum
2015-2019 Ford Expedition XL
2015-2019 Ford Expedition XLT
2016-2017 Ford Expedition EL SSV
2016-2019 Ford Expedition SSV
2018-2019 Ford Expedition Max Limited
2018-2019 Ford Expedition Max Platinum
2018-2019 Ford Expedition Max XL
2012-2019 Ford Explorer Base

…and 122 additional fitments. Contact us to confirm yours.

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