{"product_id":"eccpp-uf378-ignition-coils-with-16-iridium-spark-plugs-2005-5-7l-v8","title":"ECCPP UF378 Ignition Coils with 16 Iridium Spark Plugs - 2005 5.7L V8","description":"\u003cp\u003eIn this review of the ECCPP UF378 ignition coil and spark plug kit the bottom line is practical: it is a budget-friendly direct replacement for owners of Chrysler 300, Dodge Magnum, and Jeep Grand Cherokee with the 2005 5.7L V8 who need an all-in-one ignition service. The package combines eight coil packs and 16 iridium spark plugs designed to meet or exceed OE specifications, and the single biggest reason to buy is the ready-to-install compatibility and claimed 15% energy boost over stock coils that aim to restore smooth running and resolve misfires or poor economy.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Compatibility:\u003c\/strong\u003e Built to fit Chrysler 300, Dodge Magnum, and Jeep Grand Cherokee 2005 5.7L V8 engines for straightforward replacement without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Fit Targeted:\u003c\/strong\u003e Designed to replace OEM part number UF378 so installers can match factory locations and connections with minimal hassle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Energy Output:\u003c\/strong\u003e ECCPP states coils deliver about 15% more energy than OE coils, which can improve ignition stability and throttle response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e High conductive copper wire and high dielectric epoxy are used to improve electrical conductivity and resist heat-related degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Connectors:\u003c\/strong\u003e Precise, corrosion-resistant connections are intended to maintain reliable electrical contact over time for steady spark delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Service Kit:\u003c\/strong\u003e Shipping eight ignition coils and 16 iridium spark plugs supports replacing coils and plugs together, a recommended maintenance step to clear misfire and cold-start issues.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is best for DIY mechanics and independent shops working on 2005 model-year Chrysler 300, Dodge Magnum, or Jeep Grand Cherokee vehicles with the 5.7L V8 who want a single purchase to replace all coils and plugs at once. It suits owners troubleshooting misfires, check engine lights, or rough idle who prefer replacing the full ignition set to restore performance.\u003c\/p\u003e\u003cp\u003eIt is not aimed at owners of other model years or different engines, and buyers seeking OE-branded parts or extended-warranty dealer components should look elsewhere. Also, anyone prioritizing long-term durability above initial value should weigh mixed user reports about longevity.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood fit and easy installation for compatible 2005 5.7L V8 vehicles, reducing shop time.\u003c\/li\u003e\n\u003cli\u003ePerforms well to resolve misfire and restore smooth idle and fuel economy in many user reports.\u003c\/li\u003e\n\u003cli\u003eComplete set of eight coils and 16 iridium plugs offers convenience and value for a full ignition service.\u003c\/li\u003e\n\u003cli\u003eDesigned with conductive copper windings and high dielectric epoxy for better electrical performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDurability is mixed in customer feedback, with some reports of early failures that warrant realistic expectations.\u003c\/li\u003e\n\u003cli\u003eSome buyers have reported receiving incorrect plugs in isolated cases, so verify contents on arrival.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eChrysler 300, Dodge Magnum, Jeep Grand Cherokee 2005 5.7L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e8 ignition coils and 16 iridium spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Cross Reference\u003c\/td\u003e\n\u003ctd\u003eReplace OEM part number UF378\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHigh conductive copper wire, high dielectric epoxy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Claim\u003c\/td\u003e\n\u003ctd\u003eApproximately 15% more energy than OE coils\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePurpose\u003c\/td\u003e\n\u003ctd\u003eRestore spark delivery, reduce misfire and improve cold-start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe ECCPP UF378 kit is a practical, cost-effective option for 2005 5.7L V8 owners who need a full ignition refresh without buying parts piecemeal. It offers good fitment, improved energy output claims, and convenience, making it solid value for most DIYers and independent shops; buyers should inspect received parts on delivery and be aware of mixed durability reports when considering long-term expectations.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these coils and plugs a direct fit for a 2005 Chrysler 300 5.7L?\u003c\/strong\u003e\u003cbr\u003eYes, the kit is specified for the 2005 Chrysler 300 with the 5.7L V8 and replaces OEM part UF378 for a direct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I replace coils and spark plugs together?\u003c\/strong\u003e\u003cbr\u003eYes, replacing coils and plugs together helps ensure consistent ignition performance and can reduce misfire and rough-start issues.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo these parts come pre-gapped and ready to install?\u003c\/strong\u003e\u003cbr\u003eIridium plugs typically come pre-gapped to OE specs, but it is advisable to check gap and inspect all components on arrival before installation.\u003c\/p\u003e","brand":"ECCPP","offers":[{"title":"Default Title","offer_id":48616744943835,"sku":"B0C7CK2XRW","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71LDKJEoDIL._AC_SL1500.jpg?v=1778427987","url":"https:\/\/gearmusthave.com\/products\/eccpp-uf378-ignition-coils-with-16-iridium-spark-plugs-2005-5-7l-v8","provider":"GearMustHave","version":"1.0","type":"link"}