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NGK Laser Iridium Spark Plug Box of 4 (SILMAR9A9S)

Take your vehicle's performance to the next level with the NGK Laser Iridium Spark Plug Box of 4. Engineered with the latest technology, these spark plugs offer the best combination of performance and longevity.

  • Iridium tipped center electrode provides durability six times harder than platinum
  • High-grade pure alumina ceramic and 98% pure copper core prevent overheating and ensure reliable starts
  • Raised platinum pad or platinum fine wire tip on the ground electrode for even wear and improved spark performance

As the largest OE supplier and manufacturer of spark plugs in North America, NGK is committed to delivering world-class products and services. With over 80 years of automotive expertise, you can trust NGK to provide the highest quality spark plugs for your vehicle.

Make Model Year Type
Honda CRF450L 2019 Base
Honda CRF450L 2020 Base
Honda CRF450R 2009 Base
Honda CRF450R 2010 Base
Honda CRF450R 2011 Base
Honda CRF450R 2012 Base
Honda CRF450R 2013 Base
Honda CRF450R 2014 Base
Honda CRF450R 2015 Base
Honda CRF450R 2016 Base
Honda CRF450R 2017 Base
Honda CRF450R 2018 Base
Honda CRF450R 2019 Base
Honda CRF450R 2020 Base
Honda CRF450RWE 2019 Base
Honda CRF450RWE 2020 Base
Honda CRF450RX 2017 Base
Honda CRF450RX 2018 Base
Honda CRF450RX 2019 Base
Honda CRF450RX 2020 Base
Honda CRF450X 2019 Base
Honda CRF450X 2020 Base
NGK manufactures spark plugs and spark plug wires, as well as glow plugs for diesel applications. Their range of spark plugs cover everything from OEM replacement to Ultimate Performance plugs, and are available as traditional copper, platinum, or iridium tips. NGK’s reputation as an OEM supplier for many car manufacturers makes them a top choice for spark plugs. Few brands can make that claim and have the quality to back it up.
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