# NGK Laser Iridium Spark Plug Box of 4 (KR8AI) NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems. - Pure alumina silicate ceramic insulator provides superior strength and better heat transfer - Trivalent metal plating for superior anti-corrosion and anti-seizing properties - RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs - Copper core aids in heat removal - Triple seals prevent leakage This Part Fits: Year Make Model Submodel 2003 Arctic Cat 4-Stroke Touring Base 2003 Arctic Cat 4-Stroke Trail Base 2003-2005 Arctic Cat Bearcat Widetrack Base 2006-2008 Arctic Cat Bearcat Widetrack Turbo Base 2006-2008 Arctic Cat Bearcat Widetrack Turbo Articulating Base 2006-2008 Arctic Cat Panther 660 Touring Base 2006-2007 Arctic Cat Panther 660 Trail Base 2004-2008 Arctic Cat T660 Touring Base 2005 Arctic Cat T660 Turbo Base 2005-2006 Arctic Cat T660 Turbo ST Base 2005 Arctic Cat T660 Turbo ST EFI Early Build Base 2004-2007 Arctic Cat T660 Turbo Touring Base 2006-2007 Arctic Cat T660 Turbo Touring LE Base 2004,2006-2007 Arctic Cat T660 Turbo Trail Base 2006-2007 Arctic Cat T660 Turbo Trail LE Base ## Details - **Price:** 82.55 CAD - **Vendor:** NGK - **Type:** Spark Plugs ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 82.55 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - out of package - Photo - out of package --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-laser-iridium-spark-plug-box-of-4-kr8ai) > Updated: 2026-06-27