{"product_id":"a-premium-ignition-coil-pack-iridium-spark-plug-kit-for-honda-civic-2006-2011-l4-1-8l-4-pack-oem-fit-longer-life","title":"A-Premium Ignition Coil Pack \u0026 Iridium Spark Plug Kit for Honda Civic 2006–2011 L4 1.8L — 4-Pack, OEM Fit, Longer Life","description":"\u003cp\u003e\u003cstrong\u003eA-Premium's 4-piece ignition coil pack plus iridium spark plug kit replaces worn coils and plugs on Honda Civic 2006–2011 L4 1.8L engines to restore reliable spark delivery and smoother running.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete replacement kit bundles four ignition coils matched to OEM fitment and four premium iridium-tip spark plugs engineered for longer life and stable combustion. Designed for direct bolt-on installation at the valve cover with blade-style terminals, the kit meets the electrical resistance and mechanical specifications required for the Civic 1.8L L4, using reference numbers 30520-RNA-A01 \/ UF-582 to simplify identification. A-Premium backs the set with a one-year unlimited-mileage guarantee, so you have a straightforward service solution when diagnosing misfires, rough idle, or reduced starting performance.\u003c\/p\u003e\n\n\u003ch3\u003eHow will swapping to these coils and iridium plugs affect engine starting and idle?\u003c\/h3\u003e\n\n\u003cp\u003eReplacing old coils and plugs restores consistent spark timing and intensity, which helps the engine start more quickly and run with a smoother idle. Iridium center electrodes are more wear-resistant than conventional materials, maintaining a stable gap longer and avoiding weak or intermittent sparks.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIridium + nickel central electrode for extended service life and steady spark.\u003c\/li\u003e\n  \u003cli\u003eSpecified gap 1.0–1.1 inches to match engine ignition settings.\u003c\/li\u003e\n  \u003cli\u003ePrimary resistance 0.86–1.05 ohms, secondary 5.5–6.7 kΩ for expected electrical performance.\u003c\/li\u003e\n  \u003cli\u003eBolt-on mounting at the valve cover for reliable alignment and sealing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the compatibility and reference numbers I should check?\u003c\/h3\u003e\n\n\u003cp\u003eThis set is tailored for Honda Civic models with the 2006–2011 L4 1.8L petrol engine. Use the reference numbers provided to confirm fit with your vehicle or parts lookup tools before purchase.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVehicle fitment: Honda Civic 2006–2011 L4 1.8L petrol.\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 30520-RNA-A01, 30520RNAA01, UF-582, UF582.\u003c\/li\u003e\n  \u003cli\u003eThread diameter: 14 mm to match factory spark plug seats.\u003c\/li\u003e\n  \u003cli\u003eInstallation torque recommendation: 25–30 N·m for correct seating without damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation, and what mounting details should I prepare for?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic engine maintenance. Each coil mounts with a bolt onto the valve cover and uses a 3-terminal blade electrical connection; spark plugs thread into the cylinder head like standard plugs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCoil terminal type: blade connectors—disconnect battery before handling.\u003c\/li\u003e\n  \u003cli\u003eCoil terminal quantity: 3 per coil for secure electrical contact.\u003c\/li\u003e\n  \u003cli\u003eMount type: bolt-on; keep original mounting hardware or replace if corroded.\u003c\/li\u003e\n  \u003cli\u003eTorque spec: tighten spark plugs to 25–30 N·m to avoid leaks or thread damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and longevity benefits do iridium plugs provide?\u003c\/h3\u003e\n\n\u003cp\u003eIridium is a hard, wear-resistant alloy used at the plug’s center electrode that reduces erosion and preserves the spark gap over more miles than standard copper or nickel-only plugs. That stability typically yields more consistent combustion, which can translate to steadier throttle response and potentially better fuel use under similar driving conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eLonger service life — roughly three times longer than conventional plugs.\u003c\/li\u003e\n  \u003cli\u003eMore stable idle and ignition timing accuracy over time.\u003c\/li\u003e\n  \u003cli\u003eImproved ignition consistency for smoother starts and accelerations.\u003c\/li\u003e\n  \u003cli\u003eReduced electrode wear helps maintain efficiency and emissions control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The A-Premium set is aimed at Honda Civic owners, DIY enthusiasts, and independent technicians who need a precise, direct-replacement ignition coil and spark plug kit for 2006–2011 1.8L engines. It suits anyone troubleshooting misfires, rough idle, poor starts, or following routine tune-up intervals who wants a reliable, longer-lasting iridium solution backed by a one-year unlimited-mileage guarantee.\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: Will these coils and plugs fit my 2006–2011 Honda Civic 1.8L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this kit is designed for Honda Civic L4 1.8L petrol engines from 2006 to 2011. Confirm with reference numbers 30520-RNA-A01 or UF-582 if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long will the iridium spark plugs last compared to regular plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Iridium plugs typically last about three times longer than conventional plugs, offering more consistent performance and longer service intervals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48080885776542,"sku":"B0B4D3T1XM","price":105.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-front-packaging_3e4b7e5c-ee0d-4b67-84a0-568e5945d870.jpg?v=1785791590","url":"https:\/\/northtrailauto.ca\/products\/a-premium-ignition-coil-pack-iridium-spark-plug-kit-for-honda-civic-2006-2011-l4-1-8l-4-pack-oem-fit-longer-life","provider":"North Trail Auto","version":"1.0","type":"link"}