{"product_id":"ngk-laser-iridium-spark-plug-set-4-pack-imr9d-9h-6544-nickel-core-tip-taper-cut","title":"NGK Laser Iridium Spark Plug Set (4-Pack) IMR9D-9H 6544 – Nickel Core Tip, Taper Cut","description":"\u003ch2\u003ePremium NGK Spark Plug Set\u003c\/h2\u003e\n\u003cp\u003eDiscover the NGK Laser Iridium Spark Plug Set, designed as a compact quartet for dependable ignition across a range of engines. This 4-pack centers on model IMR9D-9H with the 6544 designation, signaling a precise-fit component commonly used in modern ignition systems.\u003c\/p\u003e\n\u003cp\u003eEngineered with a laser-irridium center electrode and a nickel core tip, these plugs blend durability with efficient spark delivery. The taper cut at 0.036 inches is sized to promote steady heat response and consistent ignition across cycles, supporting a smoother driving experience in daily commuting and varied loads.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSold in packs of 4\u003c\/li\u003e\n  \u003cli\u003ePremium NGK Laser Iridium construction\u003c\/li\u003e\n  \u003cli\u003eNickel core tip with taper-cut design for reliable ignition\u003c\/li\u003e\n  \u003cli\u003eModel IMR9D-9H, designation 6544 for compatibility reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Set May Fit Your Vehicle\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable iridium\/electrode design can sustain wear over time, depending on usage\u003c\/li\u003e\n  \u003cli\u003eEngineered for efficient spark delivery and stable operation across cycles\u003c\/li\u003e\n  \u003cli\u003eConvenient 4-pack format supports multi-cylinder maintenance or replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePractical Considerations\u003c\/h3\u003e\n\u003cp\u003eFollow your vehicle manufacturer’s torque specs during installation. Results can vary with engine type, driving style, and fuel quality, but many drivers report smoother starts, steadier idling, and more consistent acceleration after replacing worn plugs with NGK Laser Iridium units.\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’s included in this NGK spark plug set?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A four-pack of NGK Laser Iridium Spark Plugs, model IMR9D-9H (6544 designation), ready for installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What benefits can I expect from NGK Laser Iridium plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Durable iridium construction with a nickel core tip supports reliable ignition across cycles and potential longevity, depending on engine type and driving conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":42470989791317,"sku":"B071678JW9","price":75.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ngk-laser-iridium-spark-plug-set-6544-4pack.jpg?v=1778159337","url":"https:\/\/plentytorque.co.uk\/products\/ngk-laser-iridium-spark-plug-set-4-pack-imr9d-9h-6544-nickel-core-tip-taper-cut","provider":"PlentyTorque","version":"1.0","type":"link"}