{"product_id":"ngk-laser-iridium-spark-plugs-izfr6k11-set-of-4-iridium-center-electrode-for-longer-life","title":"NGK Laser Iridium Spark Plugs IZFR6K11 — Set of 4, Iridium Center Electrode for Longer Life","description":"\u003cp\u003e\u003cstrong\u003eNGK IZFR6K11 Laser Iridium spark plugs are a genuine four-pack replacement (part 6994) designed to provide reliable ignition performance for compatible vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese NGK Laser Iridium spark plugs come as an OEM-quality set of four with original packaging and hardware, intended as a direct replacement for applications that specify NGK 6994. The fine-gauge iridium center electrode is engineered for consistent spark delivery and long service life compared with conventional plugs. Before purchase, verify fitment for your vehicle using the manufacturer’s fitment tool or Amazon Confirmed Fit information.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engine problems does this NGK spark plug address?\u003c\/h3\u003e\n\u003cp\u003eThese plugs replace worn or fouled spark plugs, restoring reliable ignition and helping to reduce misfires when installed correctly. They are a common service part for routine maintenance and do not require engine modifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces worn electrodes for consistent spark timing\u003c\/li\u003e\n  \u003cli\u003eReduces risk of misfires from old or damaged plugs\u003c\/li\u003e\n  \u003cli\u003eMaintains ignition system integrity when installed per spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do Laser Iridium plugs differ from standard plugs?\u003c\/h3\u003e\n\u003cp\u003eLaser Iridium uses a finely machined iridium center electrode that offers improved wear resistance compared with standard nickel electrodes. That results in longer intervals between replacements under normal operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium center electrode for greater durability\u003c\/li\u003e\n  \u003cli\u003ePrecise electrode geometry for stable spark formation\u003c\/li\u003e\n  \u003cli\u003eLower long-term replacement frequency versus some conventional plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before installing the NGK IZFR6K11 set?\u003c\/h3\u003e\n\u003cp\u003eConfirm the plug type and gap specification for your exact engine model, and inspect ignition components like wires or coils while replacing plugs. Use the vehicle manufacturer’s torque and gap specs to ensure correct installation and avoid damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify part number NGK 6994 \/ IZFR6K11 matches vehicle requirements\u003c\/li\u003e\n  \u003cli\u003eCheck and set electrode gap per OEM specification before fitment\u003c\/li\u003e\n  \u003cli\u003eUse correct torque and new hardware where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these plugs work with performance or turbocharged engines?\u003c\/h3\u003e\n\u003cp\u003eNGK Laser Iridium plugs are suitable for many naturally aspirated and forced-induction engines when the part number matches the engine’s specification. For modified engines, confirm heat range and electrode requirements with a technician to match altered combustion characteristics.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible when NGK IZFR6K11 is specified by the engine maker\u003c\/li\u003e\n  \u003cli\u003eCheck heat range suitability for tuned or high-boost setups\u003c\/li\u003e\n  \u003cli\u003eConsult a professional if ignition timing or fuel maps have changed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This set of four NGK IZFR6K11 (6994) Laser Iridium spark plugs is aimed at vehicle owners and mechanics performing routine maintenance or spark plug replacement on compatible engines. It suits DIY enthusiasts who follow OEM torque and gap specs, professional shops that require genuine NGK components, and anyone seeking a long-life iridium plug as a direct replacement. Always confirm fitment for your model before purchasing to ensure correct compatibility and safe installation.\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 product is a set of four NGK Laser Iridium spark plugs (part IZFR6K11 \/ 6994).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs come with original packaging and hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the set includes genuine NGK packaging and the original hardware supplied by the manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":67586419884217,"sku":"B00M5ETD3Y","price":108.85,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ngk-izfr6k11-front-packaging.jpg?v=1790483185","url":"https:\/\/redleafauto.ca\/products\/ngk-laser-iridium-spark-plugs-izfr6k11-set-of-4-iridium-center-electrode-for-longer-life","provider":"Redleaf Auto","version":"1.0","type":"link"}