{"product_id":"ngk-laser-iridium-spark-plugs-honda-civic-2016-2021-4-pack-iridium-tip-oe-equivalent","title":"NGK Laser Iridium Spark Plugs — Honda Civic 2016–2021 (4-Pack), Iridium Tip \u0026 OE‑Equivalent","description":"\u003cp\u003e\u003cstrong\u003eNGK Laser Iridium spark plugs (Box of 4, ILZKAR8H8S) are high‑performance replacement plugs designed to restore reliable starts, efficient combustion, and extended service life in compatible 2016–2021 Honda Civic engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese NGK plugs use an ultra‑fine iridium center electrode and a platinum ground electrode to reduce wear and maintain a stable spark over many miles. Built with a laser‑welded tip, extended insulator nose, corrugated ribs, and a triple‑gasket seal, they target better ignitability, lower fouling risk, and minimized combustion leakage. They’re specified as OE‑equivalent replacements for many L4 2.0L turbo and L4 1.5L Civic configurations (not recommended for Civic Si models).\u003c\/p\u003e\n\n\u003ch3\u003eHow do these spark plugs improve starting and throttle response?\u003c\/h3\u003e\n\u003cp\u003eThe iridium center electrode produces a concentrated, consistent spark that helps ignite the air\/fuel mixture more efficiently, especially during cold starts and transient throttle events. Improved ignition reliability typically translates into quicker starts and a more immediate throttle response under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLaser‑welded iridium tip for a stronger, focused spark\u003c\/li\u003e\n  \u003cli\u003eFine electrode diameter reduces required voltage and improves ignitability\u003c\/li\u003e\n  \u003cli\u003eStable spark throughout the plug’s service life for consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these plugs reduce fouling and last longer than standard plugs?\u003c\/h3\u003e\n\u003cp\u003eYes — the combination of an extended insulator nose and durable electrode materials lowers the chance of deposits building up and slows electrode wear. NGK’s platinum disc on the ground electrode and iridium center tip are chosen for longevity, helping the plugs hold their gap and function properly for an extended interval.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExtended insulator nose resists deposit formation\u003c\/li\u003e\n  \u003cli\u003ePlatinum disc welded on the ground electrode for long life\u003c\/li\u003e\n  \u003cli\u003eCorrugated insulator ribs prevent flashover and electrical leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these the correct plugs for my 2016–2021 Honda Civic?\u003c\/h3\u003e\n\u003cp\u003eThese NGK ILZKAR8H8S plugs are specified as equivalent replacements for many 1.5L and 2.0L Civic engines within the 2016–2021 model years. They match OE performance characteristics for compatible engine codes, but they are not recommended for Civic Si performance variants.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits L4 1.5L and L4 2.0L turbocharged Civic engines (check engine code)\u003c\/li\u003e\n  \u003cli\u003eManufacturer part number: 95112 — NGK box of four\u003c\/li\u003e\n  \u003cli\u003eNot intended for Civic Si models; verify compatibility before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat construction features help prevent leakage and corrosion?\u003c\/h3\u003e\n\u003cp\u003eNGK uses a triple‑gasket sealing system to block combustion gases from bypassing the plug, and trivalent metal plating on the shell reduces corrosion and seizing. The combined design protects the thread area and maintains a secure mechanical and electrical connection over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTriple gasket seal eliminates combustion gas leakage\u003c\/li\u003e\n  \u003cli\u003eTrivalent plating provides anti‑corrosion and anti‑seize protection\u003c\/li\u003e\n  \u003cli\u003ePrecision manufacturing ensures consistent thread and seat engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These NGK Laser Iridium spark plugs are aimed at Honda Civic owners who want an OE‑equivalent upgrade for reliable ignition, extended interval service, and improved combustion stability. Ideal for drivers of 2016–2021 Civics with the L4 1.5L or L4 2.0L turbo engines who prioritize consistent starts, reduced fouling, and long‑lasting plug life. Confirm your vehicle’s engine specification before ordering to ensure compatibility, and remember this set is not recommended for Civic Si models.\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: Are these NGK plugs compatible with all 2016–2021 Civics?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit many 1.5L and 2.0L Civic engines from 2016–2021 but are not recommended for Civic Si. Verify your engine code before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do NGK Laser Iridium spark plugs typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Iridium\/platinum plugs usually offer significantly longer service life than standard plugs, often lasting tens of thousands of miles depending on driving conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":67586635563193,"sku":"B07FP43CY3","price":155.59,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ngk-front-box-packaging.jpg?v=1790488838","url":"https:\/\/redleafauto.ca\/products\/ngk-laser-iridium-spark-plugs-honda-civic-2016-2021-4-pack-iridium-tip-oe-equivalent","provider":"Redleaf Auto","version":"1.0","type":"link"}