{"product_id":"marsram-ignition-coil-spark-plug-kit-uf550-6-pack-for-nissan-3-5l-v6-double-iridium-plugs-copper-wound-coils","title":"Marsram Ignition Coil \u0026 Spark Plug Kit UF550 6-Pack for Nissan 3.5L V6 — Double-Iridium Plugs, Copper-Wound Coils","description":"\u003cp\u003e\u003cstrong\u003eMarsram's kit pairs six UF550-style ignition coils with six double-iridium spark plugs engineered to restore firing reliability and throttle response on Nissan V6 3.5L models.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis all-in-one replacement set from Marsram is designed for Nissan and Infiniti vehicles that use the UF550 (and equivalent) ignition coil family and 1406-series spark plugs. Each coil uses high-conductivity copper windings inside a heat-resistant epoxy and engineering-plastic housing, while the included spark plugs feature double iridium electrodes for longer life and steadier spark delivery. The package contains six coils and six plugs, covers many Maxima, Altima, Murano, Pathfinder, 350Z and numerous Infiniti models, and ships with a one-year aftermarket warranty.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles are compatible with this Marsram ignition coil and spark plug kit?\u003c\/h3\u003e\n\u003cp\u003eThe kit is matched to many Nissan 3.5L V6 and corresponding Infiniti models across several model years. It replaces OEM part numbers such as UF550, 22448-JA10C, 22448-JA11C and spark plug 1406. Always confirm fitment using your vehicle's year, model and engine code before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible Nissan: Maxima (2009–2014, 2016–2019 variants noted), Altima (2010–2018 depending on trim), 350Z (2007–2009), Murano (2009–2019), Pathfinder (2013–2019), Quest (2011–2017).\u003c\/li\u003e\n  \u003cli\u003eCompatible Infiniti: EX35, FX35, G25\/G35, JX35, M35\/M35h, Q50 Hybrid\/Q70\/QX60 across listed years.\u003c\/li\u003e\n  \u003cli\u003eReplaces: UF550, C1670, 22448-JA10A\/C, GN10244 and spark plug 1406.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these replacement coils and spark plugs improve engine performance?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn coils and plugs helps reestablish reliable ignition timing and consistent combustion across all cylinders. That can reduce misfires, smooth idling and recover throttle response that degrades with old ignition components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble iridium plugs maintain a stable spark gap for steady combustion and longer service life.\u003c\/li\u003e\n  \u003cli\u003eCopper windings and epoxy housing resist heat, improving coil durability under heavy load.\u003c\/li\u003e\n  \u003cli\u003eOE-style design ensures firing strength and compatibility with factory ignition systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and maintenance?\u003c\/h3\u003e\n\u003cp\u003eThe Marsram kit is built to OE dimensions and electrical characteristics so most mechanics and skilled DIYers can swap coils and plugs without modifications. Observe basic safety and torque specs when installing plugs to avoid thread damage or improper sealing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes six coils and six plugs—enough for a full bank replacement on V6 engines.\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer torque values and anti-seize guidance for spark plugs if applicable.\u003c\/li\u003e\n  \u003cli\u003eCheck engine codes and coil connectors; clean spark plug wells and use dielectric grease on connectors for longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and quality checks back this Marsram ignition set?\u003c\/h3\u003e\n\u003cp\u003eMarsram combines engineered materials with factory-style testing. The coils use high-strength engineering plastic and epoxy resin to avoid heat deformation, and each coil’s interior copper winding is sized for reliable ignition output. Spark plugs use corrosion-resistant electrodes to limit gap growth.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured with materials intended to meet or exceed OE design and performance.\u003c\/li\u003e\n  \u003cli\u003ePackaged with a one-year aftermarket warranty and customer support for defects.\u003c\/li\u003e\n  \u003cli\u003eStrict testing procedures during production aim to ensure fit, durability and safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Marsram ignition coil and spark plug kit is suited to owners and technicians maintaining Nissan or Infiniti 3.5L V6 vehicles who want a complete cylinder-by-cylinder replacement. It’s ideal for drivers experiencing misfires, rough idle, decreased fuel efficiency, or hesitations due to aging coils or plugs, and for anyone performing routine ignition maintenance with a focus on longevity and OE-like fitment.\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 2012 Nissan Maxima 3.5L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit lists compatibility with 2009–2014 Maxima 3.5L models; verify fit using your VIN or the seller’s fitment tool before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long is the warranty on the Marsram ignition kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Marsram offers a one-year aftermarket warranty and customer support for defects or fitment issues.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Marsram","offers":[{"title":"Default Title","offer_id":55171132653911,"sku":"B0G2RDB4PV","price":117.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/marsram-coil-pack-front-view_f121ee4a-29d6-4aad-a4c8-80d3782edb73.jpg?v=1790438874","url":"https:\/\/britishgarage.co.uk\/products\/marsram-ignition-coil-spark-plug-kit-uf550-6-pack-for-nissan-3-5l-v6-double-iridium-plugs-copper-wound-coils","provider":"British Garage","version":"1.0","type":"link"}