{"product_id":"eccpp-uf550-ignition-coils-with-6-iridium-spark-plugs-nissan","title":"ECCPP UF550 Ignition Coils with 6 Iridium Spark Plugs - Nissan","description":"\u003cp\u003eIn this review the ECCPP UF550 kit is evaluated as a budget-conscious replacement for failing ignition coils and spark plugs on a range of Nissan and Infiniti 3.5L V6 engines. It is best for owners who need a complete ignition pack to address misfires or rough idle and want an easy swap using parts that match common OEM part numbers. The single biggest reason to buy is the convenience of a matched set of six coils and six iridium plugs that are designed to meet or exceed OE specifications and improve starting and smoothness when installed together.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Compatibility:\u003c\/strong\u003e The kit fits many Infiniti models including EX35, FX35, G35 and Q50\/Q70\/QX60 model years listed, making it a practical direct-replacement option for those engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes six ignition coils plus six iridium spark plugs so the entire bank is replaced at once to reduce mismatched wear and persistent misfire issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE Fit Reference:\u003c\/strong\u003e Replaces common OEM part numbers such as UF550 and 22448JA10C so buyers can match service records or dealer references.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Energy:\u003c\/strong\u003e ECCPP states the coils deliver about 15% more energy than OE coils, which can help crisper ignition and smoother running after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built with high conductive copper wire and high dielectric epoxy to help electrical connectivity and long service life under normal conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Focused Spark Plugs:\u003c\/strong\u003e The included iridium plugs are intended to improve cold starts and longevity compared with standard plugs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIY mechanics and independent shops servicing Nissan and Infiniti vehicles with the 3.5L V6 that require replacement coils and plugs. It is particularly useful when multiple cylinders are misfiring or when the vehicle shows poor fuel economy and hesitation so replacing the whole set avoids leaving old coils paired with new plugs.\u003c\/p\u003e\n\u003cp\u003eOwners who need long-term, guaranteed durability from high-mileage parts or those seeking manufacturer warranty support may prefer factory OEM parts from a dealer. Also, this kit is tailored to the specific model years and engines listed, so buyers should verify compatibility with their VIN or service manual before purchasing.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete six-coil and six-plug kit simplifies repairs and ensures matched components across the bank.\u003c\/li\u003e\n\u003cli\u003eDesigned to meet or exceed OE specifications with corrosion-resistant connections for reliable electrical contact.\u003c\/li\u003e\n\u003cli\u003eMany customers report improved smoothness and elimination of misfire after installation when parts are functioning correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report premature failures within weeks, so durability can be inconsistent compared with dealer-sourced coils.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eECCPP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit Contents\u003c\/td\u003e\n\u003ctd\u003e6 ignition coils and 6 iridium spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Engines\u003c\/td\u003e\n\u003ctd\u003e3.5L V6 (select Nissan and Infiniti models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaces OEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003eUF550, 22448JA10A, 22448JA10C, 22448JA11C, 22448JA12D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Examples\u003c\/td\u003e\n\u003ctd\u003eAltima, 350Z, Maxima, Murano, Pathfinder, Q50, QX60, FX35, EX35, G35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlug Type\u003c\/td\u003e\n\u003ctd\u003eIridium spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ECCPP UF550 six-coil and six-plug kit is a pragmatic, cost-effective option for owners needing a full ignition bank refresh on compatible Nissan and Infiniti 3.5L engines. It offers OE-referenced fitment and improved ignition energy that typically restores smooth idle and reduces misfires, but potential buyers should be mindful of mixed reports about durability and consider warranty expectations.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this kit fit my Q50 3.5L?\u003c\/strong\u003e\u003cbr\u003eIt is listed as compatible with Q50 model years 2014-2018 with the 3.5L V6, but always verify with your VIN or service manual before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I replace coils and plugs together?\u003c\/strong\u003e\u003cbr\u003eYes. Replacing coils and plugs together reduces the chance of leftover failing coils causing new plugs to misfire and gives the best cold-start and idle performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these the same as OEM coils?\u003c\/strong\u003e\u003cbr\u003eThey are aftermarket parts designed to meet or exceed OE specifications and replace common OEM numbers such as UF550 and 22448JA10C, but long-term durability may vary compared with factory parts.\u003c\/p\u003e","brand":"ECCPP","offers":[{"title":"Default Title","offer_id":48225055965403,"sku":"B0C7CKRXFR","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61g_QGfQWKL._AC_SL1500.jpg?v=1770804794","url":"https:\/\/gearmusthave.com\/products\/eccpp-uf550-ignition-coils-with-6-iridium-spark-plugs-nissan","provider":"GearMustHave","version":"1.0","type":"link"}