{"product_id":"autoexact-ignition-coil-iridium-spark-plug-kit-12-piece-for-nissan-infiniti-3-5l-direct-replacement-pre-gapped","title":"autoexact Ignition Coil \u0026 Iridium Spark Plug Kit — 12‑Piece for Nissan\/INFINITI 3.5L, Direct Replacement, Pre-Gapped","description":"\u003cp\u003e\u003cstrong\u003eautoexact 12-piece ignition coil and iridium spark plug kit is a direct-replacement set engineered to restore ignition performance for Nissan and INFINITI 3.5L engines, supplying six epoxy-potted coils and six pre-gapped iridium plugs for a plug-and-play installation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Murano, Pathfinder, Maxima, Altima, 350Z or compatible INFINITI is showing rough idle, misfire codes, or reduced throttle response, worn coils and plugs are often the culprit. This kit matches OEM fitment (UF807\/97390 cross-references included), offering durable coils with strong voltage output and fine-wire iridium plugs pre-gapped for immediate installation. The set is tailored to a wide range of Nissan and INFINITI 3.5L models from 2007–2024 and includes factory-prepared lubricant to simplify the DIY swap.\u003c\/p\u003e\n\n\u003ch3\u003eHow will replacing both coils and plugs affect daily drivability?\u003c\/h3\u003e\n\u003cp\u003eReplacing the ignition coils and spark plugs together helps re-establish consistent combustion across all cylinders, which reduces misfires and smooths acceleration. You should notice steadier idle, quicker throttle response, and fewer ignition-related diagnostic codes after installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores even spark delivery across 6 cylinders\u003c\/li\u003e\n  \u003cli\u003eReduces shaking and rough idle\u003c\/li\u003e\n  \u003cli\u003eHelps clear P0300–P0308 misfire codes\u003c\/li\u003e\n  \u003cli\u003eImproves responsiveness during acceleration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these components easy to install for a DIYer?\u003c\/h3\u003e\n\u003cp\u003eThe kit is engineered as a direct OE-style replacement—no modifications required—so a homeowner with basic hand tools can complete the job. Plugs arrive pre-gapped and coils are factory-sealed with epoxy, plus the package includes factory pre-lubricated components for straightforward reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlug-and-play design for exact fitment\u003c\/li\u003e\n  \u003cli\u003ePre-gapped iridium plugs for immediate use\u003c\/li\u003e\n  \u003cli\u003eRecommended torque: 11.06–14.75 ft·lb (15–20 N·m)\u003c\/li\u003e\n  \u003cli\u003eSimple swap procedure reduces shop labor costs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and longevity benefits do iridium plugs and epoxy coils provide?\u003c\/h3\u003e\n\u003cp\u003eFine-wire iridium electrodes offer a smaller, more focused spark that improves ignition reliability and extends service life under normal driving conditions. Epoxy-potted coils resist heat and moisture, maintaining stable output and insulating critical components from failure modes that shorten coil life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium plugs: long service life and sharper sparks\u003c\/li\u003e\n  \u003cli\u003eEpoxy-potted coils: superior heat and moisture resistance\u003c\/li\u003e\n  \u003cli\u003eTested voltage output and sealing performance\u003c\/li\u003e\n  \u003cli\u003eBacked by a 2-year warranty and lifetime technical support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and part numbers are compatible with this kit?\u003c\/h3\u003e\n\u003cp\u003eThis 12-piece set fits many Nissan and INFINITI 3.5L applications—verify year, make, model, and engine before ordering. It replaces common OE numbers and aftermarket references listed to help ensure correct selection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Nissan: Murano (2009–2024), Pathfinder (2013–2024), Maxima, Altima (2007–2018), 350Z (2007–2009), Quest, and others\u003c\/li\u003e\n  \u003cli\u003eFits INFINITI: QX60, JX35, G35, EX35, FX35, Q50, Q70, M35\/M35h models\u003c\/li\u003e\n  \u003cli\u003eOE \u0026amp; replacement numbers: UF550, C1670, 22448JA10A\/C, 22448JN10A\/C, 93501, ILKAR7L11, and more\u003c\/li\u003e\n  \u003cli\u003eConfirm fitment by year\/motor before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This kit is aimed at DIY owners, independent mechanics, and fleet technicians who want an OEM-oriented, cost-effective replacement for worn ignition components on Nissan and INFINITI 3.5L engines. If you’re diagnosing misfires, rough idling, poor throttle response, or planning preventive maintenance, this 12-piece autoexact set delivers a straightforward upgrade with tested coils, long-life iridium plugs, and support from the manufacturer.\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 this kit clear a misfire code P0301–P0306?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If misfires are caused by worn coils or plugs, replacing them often resolves P0301–P0306; confirm with diagnostics first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do the iridium plugs last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Under normal driving conditions, these fine-wire iridium plugs are rated for up to about 40,000 miles.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"autoexact","offers":[{"title":"Default Title","offer_id":48082799329438,"sku":"B0G5YSGSHF","price":138.47,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/autoexact-front-packaging-coils-plugs_68b3b6bc-718a-4fe9-84ba-f11897f11d97.jpg?v=1785814703","url":"https:\/\/northtrailauto.ca\/products\/autoexact-ignition-coil-iridium-spark-plug-kit-12-piece-for-nissan-infiniti-3-5l-direct-replacement-pre-gapped","provider":"North Trail Auto","version":"1.0","type":"link"}