{"product_id":"ngk-iridium-ix-spark-plug-box-of-4-dr9eix","title":"NGK Iridium IX Spark Plug Box of 4 (DR9EIX)","description":"NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.\nNGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability.\nLAMBORGHINI DIABLO 1996-92, M\/C - 1998-1990 DUCATI, 1981-1980 HONDA, 2009-1981 KAWASAKI, 2004-2003 KTM, 1998-1993 MOTO GUZZI, 2005-1980 SUZUKI, 1974-1973 YAMAHA\n\u003cul\u003e\n  \u003cli\u003eRECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs\u003c\/li\u003e\n  \u003cli\u003eTrivalent metal plating for superior anti-corrosion and anti-seizing properties\u003c\/li\u003e\n  \u003cli\u003eOutstanding acceleration, high fuel efficiency and durability\u003c\/li\u003e\n  \u003cli\u003eFine iridium tip ensures durable and consistent spark\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your ignition system with NGK Iridium IX DR9EIX spark plugs, part number 4772, engineered for performance enthusiasts and modified or high-performance applications. Each plug features a fine iridium center electrode that delivers a durable, consistent spark while promoting outstanding acceleration, high fuel efficiency, reliable starting, smooth idling, and responsive throttle control. This set includes four spark plugs for convenient installation or replacement.\u003cbr\u003eNGK Iridium IX technology uses an iridium alloy with an extremely high melting point, making it well suited for the demands of modern engines. The fine-wire center electrode is significantly harder and more durable than platinum, while the tapered-cut ground electrode improves ignitability and helps resist fouling. Trivalent metal plating provides superior protection against corrosion and seizing, supporting dependable service during maintenance and future removal.\u003cbr\u003eThese automotive spark plugs are designed as an upgrade from original-equipment nickel-alloy plugs and are compatible with select Lamborghini, Ducati, Honda, Kawasaki, KTM, Moto Guzzi, Suzuki, and Yamaha applications. Confirm vehicle compatibility and engine requirements before installation. For an additional performance upgrade, consider NGK Ruthenium HX spark plugs where application-specific fitment permits.\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cbr\u003e  \u003cli\u003eRecommended usage: Modified or high-performance applications, or as an upgrade to OE nickel-alloy spark plugs\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eIridium fine-wire center electrode delivers consistent ignition performance and durability\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eTapered-cut ground electrode supports improved starting, idling, throttle response, and anti-fouling performance\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eTrivalent metal plating helps resist corrosion and seizing\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eBox includes four NGK Iridium IX DR9EIX spark plugs\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eRecommended usage: Modified or high-performance applications, or as an upgrade to OE nickel-alloy spark plugs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIgnition performance: Fine iridium tip provides a durable and consistent spark\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngine response: Tapered-cut ground electrode supports improved starting, idling, and throttle response\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDurability: Iridium alloy withstands high operating temperatures and demanding engine conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProtection: Trivalent metal plating helps resist corrosion and seizing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePackage contents: Four NGK Iridium IX DR9EIX spark plugs\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nDucati 888 Strada Base 1992\u003cbr\u003e\nHonda CB900C Custom Base 1980\u003cbr\u003e\nHonda CB900C Custom Base 1981\u003cbr\u003e\nHonda CB900F Super Sport Base 1981\u003cbr\u003e\nKawasaki EN450A 454 Ltd Base 1985\u003cbr\u003e\nKawasaki EN450A 454 Ltd Base 1986\u003cbr\u003e\nKawasaki EN450A 454 Ltd Base 1988\u003cbr\u003e\nKawasaki EN450A 454 Ltd Base 1989\u003cbr\u003e\nKawasaki EN450A 454 Ltd Base 1990\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1990\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1991\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1992\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1993\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1994\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1995\u003cbr\u003e\nKawasaki EN500 Vulcan 500 Base 1996\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 1996\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 1997\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 1998\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 1999\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2000\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2001\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2002\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2003\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2004\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2005\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2006\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2007\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2008\u003cbr\u003e\nKawasaki EN500C Vulcan 500 Ltd Base 2009\u003cbr\u003e\nKawasaki EX500 Ninja 500 Base 1994\u003cbr\u003e\nKawasaki EX500 Ninja 500 Base 1995\u003cbr\u003e\nKawasaki EX500 Ninja 500 Base 1996\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 1997\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 1998\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 1999\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2000\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2001\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2002\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2003\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2004\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2005\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2006\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2007\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2008\u003cbr\u003e\nKawasaki EX500 Ninja 500R Base 2009\u003cbr\u003e\nKawasaki KZ305 CSR Base 1981\u003cbr\u003e\nKawasaki KZ305 CSR Base 1982\u003cbr\u003e\nKawasaki KZ305B CSR Belt Base 1982\u003cbr\u003e\nKawasaki KZ305B Ltd Base 1987\u003cbr\u003e\nKawasaki KZ305B Ltd Base 1988\u003cbr\u003e\nKawasaki ZL600 Eliminator Base 1986\u003cbr\u003e\nKawasaki ZL600 Eliminator Base 1987\u003cbr\u003e\nKawasaki ZR550 Zephyr Base 1990\u003cbr\u003e\nKawasaki ZR550 Zephyr Base 1991\u003cbr\u003e\nKawasaki ZR750C Zephyr Base 1991\u003cbr\u003e\nKawasaki ZR750C Zephyr Base 1992\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1985\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1986\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1987\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1988\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1989\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1990\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1991\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1992\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1993\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1994\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1995\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1996\u003cbr\u003e\nKawasaki ZX600 Ninja 600R Base 1997\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1990\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1991\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1992\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1993\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1994\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1995\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1996\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6 Base 1997\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6R Base 1995\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6R Base 1996\u003cbr\u003e\nKawasaki ZX600 Ninja ZX-6R Base 1997\u003cbr\u003e\nKTM 660 Rally Base 2003\u003cbr\u003e\nKTM 660 Rally Base 2004\u003cbr\u003e\nLamborghini Diablo Base 1992\u003cbr\u003e\nLamborghini Diablo Base 1993\u003cbr\u003e\nLamborghini Diablo SE30 1994\u003cbr\u003e\nLamborghini Diablo VT 1994\u003cbr\u003e\nLamborghini Diablo VT 1995\u003cbr\u003e\nLamborghini Diablo VT 1996\u003cbr\u003e\nMoto Guzzi V10 Centauro Gt Base 1998\u003cbr\u003e\nMoto Guzzi V10 Centauro Sport Base 1998\u003cbr\u003e\nSuzuki GS250T Base 1980\u003cbr\u003e\nSuzuki GS250T Base 1981\u003cbr\u003e\nSuzuki GS300L Base 1982\u003cbr\u003e\nSuzuki GS300L Base 1983\u003cbr\u003e\nSuzuki GS550E Base 1983\u003cbr\u003e\nSuzuki GS550E Base 1984\u003cbr\u003e\nSuzuki GS550E Base 1985\u003cbr\u003e\nSuzuki GS550E Base 1986\u003cbr\u003e\nSuzuki GS550ES Base 1983\u003cbr\u003e\nSuzuki GS550ES Base 1984\u003cbr\u003e\nSuzuki GS550ES Base 1985\u003cbr\u003e\nSuzuki GS550ES Base 1986\u003cbr\u003e\nSuzuki GS550L Base 1983\u003cbr\u003e\nSuzuki GS550L Base 1984\u003cbr\u003e\nSuzuki GS550L Base 1985\u003cbr\u003e\nSuzuki GS550L Base 1986\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 1997\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 1998\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 1999\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 2000\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 2001\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 2002\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 2003\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 2004\u003cbr\u003e\nSuzuki GSF1200S Bandit Base 2005\u003cbr\u003e\nSuzuki GSX-R1100 Base 1989\u003cbr\u003e\nSuzuki GSX-R1100 Base 1990\u003cbr\u003e\nSuzuki GSX-R1100 Base 1991\u003cbr\u003e\nSuzuki GSX-R1100 Base 1992\u003cbr\u003e\nSuzuki GSX-R750 Base 1986\u003cbr\u003e\nSuzuki GSX-R750 Base 1987\u003cbr\u003e\nSuzuki GSX1100F Katana Base 1988\u003cbr\u003e\nSuzuki GSX1100F Katana Base 1989\u003cbr\u003e\nSuzuki GSX1100F Katana Base 1990\u003cbr\u003e\nSuzuki GSX1100F Katana Base 1991\u003cbr\u003e\nSuzuki GSX1100F Katana Base 1992\u003cbr\u003e\nSuzuki GSX1100F Katana Base 1993\u003cbr\u003e\nSuzuki GSX1100G Base 1991\u003cbr\u003e\nSuzuki GSX1100G Base 1992\u003cbr\u003e\nSuzuki GSX1100G Base 1993\u003cbr\u003e\nSuzuki XN85 Turbo Base 1983\u003cbr\u003e\nYamaha TX500 Base 1973\u003cbr\u003e\nYamaha TX500 Base 1974","brand":"NGK","offers":[{"title":"Default Title","offer_id":67607835017532,"sku":"ngk4772","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/4d36bab2c46465873416d4d9bad09ae8_f1819daa-b036-4193-8ca7-e7b4383db939.jpg?v=1790811090","url":"https:\/\/necycleshop.com\/products\/ngk-iridium-ix-spark-plug-box-of-4-dr9eix","provider":"NE Cycle Shop","version":"1.0","type":"link"}