{"product_id":"ignition-coil-uf550-and-spark-plugs-1406-compatible-with-3-5-v6-set","title":"Ignition Coil UF550 and Spark Plugs 1406 Compatible with 3.5 V6 - Set","description":"\u003cp\u003eIn this review the Ignition Coil UF550 and Spark Plugs 1406 set is judged on fit, durability and value for owners of Nissan and Infiniti 3.5L V6 models. The bottom line: this kit is for drivers who need a complete six-cylinder ignition refresh and want a close OE-level replacement that restores lost power and smooth idle. The reviewer found the coils use quality materials and the iridium spark plugs deliver improved cold starts, while noting buyers should double-check OE numbers to ensure correct fit.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect fit compatibility:\u003c\/strong\u003e Covers a wide range of Nissan and Infiniti 3.5L V6 models so buyers can replace all six coils and plugs in one service session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable coil construction:\u003c\/strong\u003e Coils are made with silicon steel, Japan-imported rubber and varnished wire to improve longevity under heat and vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIridium spark plugs:\u003c\/strong\u003e Professional-grade iridium electrodes and special ceramic help faster starts and more stable acceleration after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE reference clarity:\u003c\/strong\u003e Seller lists multiple OE numbers to help confirm fit before ordering, reducing the risk of buying the wrong part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved drivability:\u003c\/strong\u003e Replacing worn coils and plugs can correct misfires, rough idle and poor fuel economy for a smoother running engine.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is best for owners of Nissan 3.5L 350Z, Altima, Maxima, Murano, Pathfinder, Quest and Infiniti 3.5L EX35, FX35, G25\/G35, JX35, Q50\/Q70\/QX60 model years listed in the product fitment. It suits DIY mechanics and independent shops who prefer replacing all six ignition components at once to restore engine performance.\u003c\/p\u003e\u003cp\u003eCustomers who should look elsewhere include those who drive non-3.5L engines, need single-coil purchases, or who cannot verify OE compatibility from the detailed list; a precise fit check is important because a few buyers reported plug connector fit issues.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRestores lost power and smooth idle when original coils or plugs are worn.\u003c\/li\u003e\n\u003cli\u003eHigh-quality materials in coils and iridium plugs improve durability and starting performance.\u003c\/li\u003e\n\u003cli\u003eGood value for a full set of six ignition coils and plugs compared with buying pieces separately.\u003c\/li\u003e\n\u003cli\u003eMost customers find the kit easy to install during routine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome users reported fitment variation at the electrical plug connection, so verification against OE numbers is required.\u003c\/li\u003e\n\u003cli\u003eLimitations include the need to check listed OE references carefully to avoid ordering the wrong variant.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eIgnition coils and spark plugs set (6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine fitment\u003c\/td\u003e\n\u003ctd\u003eNissan\/Infiniti 3.5L V6 models (years vary by model)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil materials\u003c\/td\u003e\n\u003ctd\u003eSilicon steel, Japan-imported rubber, varnished wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark plug tip\u003c\/td\u003e\n\u003ctd\u003eIridium electrode with special ceramic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE references\u003c\/td\u003e\n\u003ctd\u003eIncludes UF550, 22448-JA10C, 22448-JA11C, OE1406 and others listed by seller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDurability claim\u003c\/td\u003e\n\u003ctd\u003eReliable for more than 15,000 miles per seller testing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe UF550 coil and 1406 spark plug six-piece kit is a practical, cost-effective option for owners of compatible Nissan and Infiniti 3.5L V6s who need to eliminate misfires and regain engine smoothness. It offers OE-style materials and iridium plugs for improved starting and longevity, but buyers must verify the listed OE numbers for exact fitment to avoid connector issues. Overall it represents strong value for complete ignition maintenance.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these fit my 2010 Maxima?\u003c\/strong\u003e\u003cbr\u003eCheck the OE references listed and the 3.5L Maxima fitment years; the product lists 2009-2014 and 2016-2020 Maxima as compatible.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the spark plugs pre-gapped?\u003c\/strong\u003e\u003cbr\u003eThe description emphasizes iridium plugs and ceramic construction but buyers should verify gap or set to manufacturer spec during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo the coils come as direct replacements?\u003c\/strong\u003e\u003cbr\u003eYes, the coils are sold as direct replacements with multiple OE numbers provided, though confirm connector fit before installation.\u003c\/p\u003e","brand":"TAUXMZ","offers":[{"title":"Default Title","offer_id":48661703426267,"sku":"B0CWG8Y5GR","price":76.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61kDN9tB35L._AC_SL1500.jpg?v=1778663658","url":"https:\/\/gearmusthave.com\/products\/ignition-coil-uf550-and-spark-plugs-1406-compatible-with-3-5-v6-set","provider":"GearMustHave","version":"1.0","type":"link"}