{"product_id":"ngk-iridium-spark-plugs-ilzkar8j8sy-4-pack-95660-laser-iridium-oem-fit-long-life","title":"NGK Iridium Spark Plugs ILZKAR8J8SY 4-Pack (95660) — Laser Iridium, OEM Fit \u0026 Long Life","description":"\u003cp\u003e\u003cstrong\u003eNGK ILZKAR8J8SY Laser Iridium spark plugs (95660) are high‑durility OEM‑grade ignition components sold here as a convenient 4‑plug pack.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese NGK laser iridium plugs pair a fine iridium center electrode with NGK manufacturing standards to deliver consistent ignition performance and extended service life compared with standard copper or platinum plugs. As the world’s leading original‑equipment spark plug supplier, NGK designs each part to meet specific vehicle engine tolerances, so confirming fitment for your model and engine type is advised before purchase.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these spark plugs affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eThe ILZKAR8J8SY uses a laser‑welded iridium tip for a smaller, more durable firing point, which helps produce a more stable and concentrated spark. That can improve combustion consistency across cylinders, supporting smoother idle and reliable starts under varied conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium center electrode for precise, reliable spark initiation\u003c\/li\u003e\n  \u003cli\u003eEngineered to OEM tolerances for consistent heat range and gap\u003c\/li\u003e\n  \u003cli\u003eReduced electrode wear for longer intervals between replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these plugs fit my vehicle and what should I check before buying?\u003c\/h3\u003e\n\u003cp\u003eNGK supplies many OEM designs but each part number matches specific engines and drivetrains. Verify your vehicle’s required plug part number or consult NGK’s fitment guide so you order the correct quantity and specification for your engine.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck your owner’s manual or NGK online application lookup\u003c\/li\u003e\n  \u003cli\u003eConfirm thread size, reach, and recommended heat range\u003c\/li\u003e\n  \u003cli\u003eBuy the correct quantity—this listing contains four plugs (95660)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does iridium compare to other electrode materials?\u003c\/h3\u003e\n\u003cp\u003eIridium is harder and has a higher melting point than copper or standard platinum, which makes the electrode less prone to erosion and allows NGK to use a much finer tip. That finer point focuses the spark more effectively and tends to extend service life without sacrificing ignition reliability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFiner electrode = concentrated spark and efficient combustion\u003c\/li\u003e\n  \u003cli\u003eGreater durability than copper and many platinum plugs\u003c\/li\u003e\n  \u003cli\u003eTypically longer recommended replacement intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should these plugs be installed and maintained?\u003c\/h3\u003e\n\u003cp\u003eInstallation should follow vehicle torque specifications and gap settings recommended by NGK or your vehicle maker. Use a torque wrench and anti‑seize only if the manufacturer specifies it; over‑tightening or improper gap can affect performance and longevity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSet or verify gap per NGK\/vehicle spec before fitting\u003c\/li\u003e\n  \u003cli\u003eTighten to the engine manufacturer’s torque value\u003c\/li\u003e\n  \u003cli\u003eInspect ignition coils\/wires and replace if worn for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Aimed at drivers and technicians who want OEM‑grade ignition parts that balance longevity and dependable ignition. The NGK ILZKAR8J8SY (95660) 4‑pack suits owners replacing multiple spark plugs at once, shops performing scheduled maintenance, or anyone upgrading worn plugs to a long‑life iridium option. Always confirm vehicle compatibility using NGK’s application resources before ordering to ensure correct thread, reach, and heat range for your engine.\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: Is this NGK plug compatible with my car?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check NGK’s online application or your owner’s manual to match the ILZKAR8J8SY (95660) to your engine, thread, and recommended heat range before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these iridium spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replacement intervals vary by vehicle; iridium plugs typically last longer than copper—refer to your vehicle manufacturer or NGK guidance for specific mileage recommendations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48079840673950,"sku":"B07FNW214T","price":78.26,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-ilzkar8j8sy-front-packaging.jpg?v=1785772407","url":"https:\/\/northtrailauto.ca\/products\/ngk-iridium-spark-plugs-ilzkar8j8sy-4-pack-95660-laser-iridium-oem-fit-long-life","provider":"North Trail Auto","version":"1.0","type":"link"}