NGK Laser Iridium Spark Plug - Box of 4 (SILMAR9A9S)

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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.

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NGK Laser Iridium Spark Plug - Box of 4 (SILMAR9A9S)

Experience the pinnacle of ignition technology with the NGK Laser Iridium Spark Plug, engineered for exceptional performance and extended durability. This pack of 4 plugs features a cutting-edge design that provides high ignitability, ensuring a strong and consistent spark for optimal combustion in modern, high-performance engines. NGK's Laser Iridium plugs are rigorously tested to meet the highest OE standards, guaranteeing reliability and longevity.

Advanced Features for Peak Performance:

  • High Ignitability: Laser-cut iridium-tipped center electrode and platinum-tipped ground electrode promote a powerful spark and efficient combustion.
  • Superior Longevity: Iridium is six times harder than platinum, offering exceptional resistance to wear and ensuring a longer service life.
  • OE Specific Design: Engineered precisely for OE applications, ensuring perfect fitment and performance.
  • Pure Alumina Ceramic: NGK's high-grade ceramic insulator provides superior strength and thermal conductivity, preventing flashover.
  • 98% Pure Copper Core: Dissipates heat effectively, preventing plug overheating and ensuring reliable starts across a wide heat range.
  • Platinum Ground Electrode: Features a raised platinum pad or fine wire tip for consistent performance in distributorless ignition systems and even wear.

The NGK Laser Iridium Spark Plug represents the latest in ignition technology, designed to meet the demanding requirements of today's engines. Its advanced materials and construction ensure optimal fuel efficiency, smoother engine operation, and enhanced power output. Whether you're maintaining a high-performance sports car, a modern motorcycle, or any vehicle requiring top-tier ignition components, these plugs deliver unparalleled performance and durability. Upgrade your ignition system with the best. Get your NGK Laser Iridium Spark Plugs today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2020 Honda CRF450L Base
2009-2020 Honda CRF450R Base
2019-2020 Honda CRF450RWE Base
2017-2020 Honda CRF450RX Base
2019-2020 Honda CRF450X Base

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 Laser Iridium Spark Plug - Box of 4 (SILMAR9A9S)

Experience the pinnacle of ignition technology with the NGK Laser Iridium Spark Plug, engineered for exceptional performance and extended durability. This pack of 4 plugs features a cutting-edge design that provides high ignitability, ensuring a strong and consistent spark for optimal combustion in modern, high-performance engines. NGK's Laser Iridium plugs are rigorously tested to meet the highest OE standards, guaranteeing reliability and longevity.

Advanced Features for Peak Performance:

  • High Ignitability: Laser-cut iridium-tipped center electrode and platinum-tipped ground electrode promote a powerful spark and efficient combustion.
  • Superior Longevity: Iridium is six times harder than platinum, offering exceptional resistance to wear and ensuring a longer service life.
  • OE Specific Design: Engineered precisely for OE applications, ensuring perfect fitment and performance.
  • Pure Alumina Ceramic: NGK's high-grade ceramic insulator provides superior strength and thermal conductivity, preventing flashover.
  • 98% Pure Copper Core: Dissipates heat effectively, preventing plug overheating and ensuring reliable starts across a wide heat range.
  • Platinum Ground Electrode: Features a raised platinum pad or fine wire tip for consistent performance in distributorless ignition systems and even wear.

The NGK Laser Iridium Spark Plug represents the latest in ignition technology, designed to meet the demanding requirements of today's engines. Its advanced materials and construction ensure optimal fuel efficiency, smoother engine operation, and enhanced power output. Whether you're maintaining a high-performance sports car, a modern motorcycle, or any vehicle requiring top-tier ignition components, these plugs deliver unparalleled performance and durability. Upgrade your ignition system with the best. Get your NGK Laser Iridium Spark Plugs today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2020 Honda CRF450L Base
2009-2020 Honda CRF450R Base
2019-2020 Honda CRF450RWE Base
2017-2020 Honda CRF450RX Base
2019-2020 Honda CRF450X Base

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 Laser Iridium Spark Plug - Box of 4 (SILMAR9A9S)

Experience the pinnacle of ignition technology with the NGK Laser Iridium Spark Plug, engineered for exceptional performance and extended durability. This pack of 4 plugs features a cutting-edge design that provides high ignitability, ensuring a strong and consistent spark for optimal combustion in modern, high-performance engines. NGK's Laser Iridium plugs are rigorously tested to meet the highest OE standards, guaranteeing reliability and longevity.

Advanced Features for Peak Performance:

  • High Ignitability: Laser-cut iridium-tipped center electrode and platinum-tipped ground electrode promote a powerful spark and efficient combustion.
  • Superior Longevity: Iridium is six times harder than platinum, offering exceptional resistance to wear and ensuring a longer service life.
  • OE Specific Design: Engineered precisely for OE applications, ensuring perfect fitment and performance.
  • Pure Alumina Ceramic: NGK's high-grade ceramic insulator provides superior strength and thermal conductivity, preventing flashover.
  • 98% Pure Copper Core: Dissipates heat effectively, preventing plug overheating and ensuring reliable starts across a wide heat range.
  • Platinum Ground Electrode: Features a raised platinum pad or fine wire tip for consistent performance in distributorless ignition systems and even wear.

The NGK Laser Iridium Spark Plug represents the latest in ignition technology, designed to meet the demanding requirements of today's engines. Its advanced materials and construction ensure optimal fuel efficiency, smoother engine operation, and enhanced power output. Whether you're maintaining a high-performance sports car, a modern motorcycle, or any vehicle requiring top-tier ignition components, these plugs deliver unparalleled performance and durability. Upgrade your ignition system with the best. Get your NGK Laser Iridium Spark Plugs today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2020 Honda CRF450L Base
2009-2020 Honda CRF450R Base
2019-2020 Honda CRF450RWE Base
2017-2020 Honda CRF450RX Base
2019-2020 Honda CRF450X Base

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