{"product_id":"ngk-iridium-ix-spark-plugs-cr8eix-4218-2-piece-set-iridium-tip-long-life-ignition","title":"NGK Iridium IX spark plugs CR8EIX (4218) 2-piece set — iridium tip, long-life ignition","description":"\u003cp\u003e\u003cstrong\u003eNGK Iridium IX CR8EIX 4218 is a genuine two-piece spark plug set engineered to provide reliable ignition and long electrode life for compatible gasoline engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis NGK 2-pack contains original Iridium IX CR8EIX (part number 4218) spark plugs in factory packaging, designed as a direct replacement for specified vehicle applications. Iridium-tipped center electrodes deliver a fine, durable firing point that helps maintain consistent spark performance over extended service intervals. The set arrives complete with the expected hardware and is intended for straightforward swap-in replacement—confirm fitment against your vehicle’s specifications before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the NGK Iridium IX CR8EIX 4218 different from ordinary spark plugs?\u003c\/h3\u003e\n\u003cp\u003eThe Iridium IX line uses a very hard iridium alloy on the center electrode, producing a much finer tip than conventional copper or platinum plugs. This reduces required voltage for ignition and resists wear, sustaining a stable spark pattern longer into the plug’s life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium alloy center electrode for prolonged wear resistance\u003c\/li\u003e\n  \u003cli\u003eFine electrode tip reduces ignition voltage and improves spark focus\u003c\/li\u003e\n  \u003cli\u003eGenuine NGK construction and factory specifications for fit and function\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install these NGK replacement spark plugs?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with routine vehicle maintenance. Remove old plugs with the appropriate socket and torque the new plugs to the vehicle maker’s specification to avoid over- or under-tightening.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSold as a 2-piece set—suitable for engines requiring two plug replacements\u003c\/li\u003e\n  \u003cli\u003eDirect replacement design matches OEM thread, reach, and heat range\u003c\/li\u003e\n  \u003cli\u003eFollow vehicle torque specs and use anti-seize if recommended by vehicle manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these plugs improve engine performance or fuel economy?\u003c\/h3\u003e\n\u003cp\u003eIridium tips maintain a consistent, concentrated spark over a longer lifespan, which helps preserve efficient combustion compared with worn plugs. While they don’t guarantee specific mpg gains, they can contribute to smoother starts and steadier throttle response when used as part of proper maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable electrode maintains ignition stability over time\u003c\/li\u003e\n  \u003cli\u003eConsistent spark can support reliable starts and steady running\u003c\/li\u003e\n  \u003cli\u003eBest results when installed in matched sets and used per service intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I confirm this NGK part fits my vehicle?\u003c\/h3\u003e\n\u003cp\u003eAlways verify compatibility before purchase. Match NGK part number CR8EIX (4218) to your vehicle’s required plug type or use the seller’s fitment tool for confirmation. If in doubt, consult your owner’s manual or a trusted mechanic.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePart number: NGK CR8EIX (4218)\u003c\/li\u003e\n  \u003cli\u003eConfirm fitment via vehicle make\/model\/year and engine code\u003c\/li\u003e\n  \u003cli\u003eUse Amazon Confirmed Fit or OEM lookup to verify compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This NGK Iridium IX CR8EIX 4218 two-pack is aimed at DIYers, independent mechanics, and owners of vehicles specified to use CR8EIX plugs who want a genuine OEM-equivalent replacement. It’s appropriate for drivers looking for longer-lasting ignition parts and for anyone replacing worn or fouled plugs during routine maintenance. If you need a pair of reliable, factory-spec iridium plugs with straightforward installation, this set is a practical choice—just confirm fitment for your vehicle before ordering.\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: How many spark plugs are included in this NGK set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This listing contains a genuine NGK Iridium IX CR8EIX 4218 two-piece spark plug set.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use these CR8EIX plugs in any vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use only if your vehicle specifies NGK CR8EIX (4218); verify fitment with model, year, and engine code before installing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":67591832502457,"sku":"B009ZF5HZE","price":67.64,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ngk-iridium-ix-cr8eix-4218-front-packaging.jpg?v=1790559036","url":"https:\/\/redleafauto.ca\/products\/ngk-iridium-ix-spark-plugs-cr8eix-4218-2-piece-set-iridium-tip-long-life-ignition","provider":"Redleaf Auto","version":"1.0","type":"link"}