{"product_id":"ngk-cr9eix-iridium-ix-spark-plug-4-pack-genuine-ngk-parts","title":"NGK CR9EIX Iridium IX Spark Plug – 4-Pack | Genuine NGK Parts","description":"\u003cp\u003eExperience dependable ignition with the NGK CR9EIX Iridium IX spark plugs, sold as a genuine 4-pack. Engineered for longevity and consistent performance, these plugs are designed to handle daily driving and varying conditions without sacrificing efficiency.\u003c\/p\u003e\u003ch2\u003eWhy NGK Iridium IX 3521 Delivers Value\u003c\/h2\u003e\u003cp\u003eThe Iridium IX line uses an iridium alloy tip that resists wear and maintains a precise gap. This means reliable starts, steady idle, and reliable combustion across a broad range of gasoline engines. While results vary, you may notice smoother throttle response and improved starting in older or high-mileage engines.\u003c\/p\u003e\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 pack NGK Iridium IX 3521 Spark Plug\u003c\/li\u003e\n\u003cli\u003eGenuine NGK Parts\u003c\/li\u003e\n\u003cli\u003eIncludes original packaging and hardware\u003c\/li\u003e\n\u003cli\u003eDirect replacement auto parts\u003c\/li\u003e\n\u003cli\u003eConfirm vehicle fitment with Amazon Confirmed Fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKey installation notes: verify compatibility with your engine before installation, and follow proper torque specifications. The package is designed for straightforward installation, making it suitable for both DIY enthusiasts and professional technicians.\u003c\/p\u003e\u003ch2\u003eReal-Life Scenarios\u003c\/h2\u003e\u003cp\u003eFor a daily commuter, these plugs can contribute to dependable cold starts and steady idling on mixed fuel and temperatures. For those maintaining older vehicles, the durable tip may help preserve consistent ignition over time, potentially reducing misfires and hesitation in demanding conditions.\u003c\/p\u003e\u003ch2\u003eTechnical Considerations\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement auto parts streamline maintenance by matching the factory design\u003c\/li\u003e\n\u003cli\u003eGenuine NGK Parts ensure quality and compatibility with a wide range of vehicles\u003c\/li\u003e\n\u003cli\u003eIridium IX feature supports long life and consistent spark performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote: This copy highlights potential benefits and typical use cases. Individual results vary by vehicle, driving style, and maintenance history. Consider verifying fitment via the Amazon Confirmed Fit tool and consult your vehicle's service manual for torque specs and procedures.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the key benefits of NGK CR9EIX Iridium IX spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for durable, reliable ignition with precise iridium tips, these plugs support consistent starts and smooth engine response across many gasoline engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this a compatible 4-pack option for my vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it’s a 4-pack of genuine NGK parts intended for direct replacement—check fitment with Amazon Confirmed Fit for your vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":42490080329813,"sku":"B004SKYAWM","price":56.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ngk-cr9eix-iridium-ix-spark-plug-4-pack-front-view.jpg?v=1778519038","url":"https:\/\/plentytorque.co.uk\/products\/ngk-cr9eix-iridium-ix-spark-plug-4-pack-genuine-ngk-parts","provider":"PlentyTorque","version":"1.0","type":"link"}