{"product_id":"uf270-ignition-coil-4503-double-iridium-spark-plug-set-reliable","title":"UF270 Ignition Coil \u0026 4503 Double Iridium Spark Plug Set - Reliable","description":"\u003cp\u003eIn this review the UF270 ignition coil and 4503 double iridium spark plug kit is evaluated for owners of late 1990s to 2008 V8 trucks and SUVs looking for an OEM-style replacement. The bottom line: this kit is for drivers who need a full set of eight coil packs and eight long-life spark plugs to address misfires, rough idle or declining fuel economy, and who want a straightforward swap that restores engine smoothness without complicated modifications. It delivers sensible performance and a clear improvement in drivability for compatible 4.7L and 3.7L engines.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes eight ignition coil packs and eight double iridium spark plugs so a full-bank replacement can be done in one service session for consistent performance across all cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide vehicle coverage:\u003c\/strong\u003e Compatible with many Dodge, Jeep, Chrysler and Mitsubishi models with the 4.7L V8 and certain 3.7L 2007-2008 engines, making it a practical choice for common truck and SUV platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable spark plugs:\u003c\/strong\u003e Double iridium construction is designed for a long service life and a stable, consistent spark that supports better cold starts and reliable combustion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE-style coil construction:\u003c\/strong\u003e Coils feature a stainless-steel spring, ferrite noise suppressor and thermoplastic connector to resist heat cycling and maintain a solid electrical connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores drivability:\u003c\/strong\u003e Replacing worn coils and plugs reduces misfires, smooths idle and can improve fuel economy when original components have deteriorated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for owners of 2000-2007 Dodge Dakota and Durango, 2002-2007 Dodge Ram 1500 with 4.7L engines, 1999-2007 Jeep Grand Cherokee 4.7L, 2006-2007 Jeep Commander, 2007 Chrysler Aspen and 2006-2007 Mitsubishi Raider who need a direct replacement for worn ignition coils and plugs. Mechanics and DIYers who prefer to replace the entire bank at once will appreciate receiving all eight coils and plugs in a single package.\u003c\/p\u003e\n\u003cp\u003eIt is not the ideal choice for vehicles outside the listed compatibility or for those seeking performance tuning beyond OE specifications. Buyers who prioritize absolute top-tier longevity should be aware that some users reported mixed durability, so frequent heavy-duty use may warrant higher-end aftermarket options.\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\u003eGood OEM fit and function that often fixes misfire and rough-idle complaints.\u003c\/li\u003e\n\u003cli\u003eDouble iridium plugs provide long life and consistent spark for improved cold starts.\u003c\/li\u003e\n\u003cli\u003eComplete set of eight coils and plugs offers convenience and uniform replacement value.\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 reported mixed durability over long-term use, so lifespan may vary by driving conditions.\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\u003eX4XZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit contents\u003c\/td\u003e\n\u003ctd\u003e8 ignition coil packs and 8 double iridium spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary fitment\u003c\/td\u003e\n\u003ctd\u003e4.7L V8 engines (selected Dodge, Jeep, Chrysler, Mitsubishi models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional fitment\u003c\/td\u003e\n\u003ctd\u003eSome 3.7L Dodge Dakota and Ram 1500 models (2007-2008)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE references\u003c\/td\u003e\n\u003ctd\u003eUF270, 4503; replaces SKIC038, 5C1114, UF297 and related numbers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlug type\u003c\/td\u003e\n\u003ctd\u003eDouble iridium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year product service and 24-hour customer support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe UF270 and 4503 combined kit is a sensible, cost-effective full-bank replacement for compatible 4.7L and some 3.7L engines, delivering noticeably improved idle, reduced misfire and potentially better fuel economy compared with worn originals. It is good value for owners who want an OEM-style swap and straightforward installation, though those seeking the absolute longest-lived components under heavy duty use should consider premium alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this kit include all parts needed for a full replacement?\u003c\/strong\u003e\u003cbr\u003eYes, the package includes eight ignition coil packs and eight double iridium spark plugs for a complete bank replacement; no instruction manual is included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit my Ram 1500 with a 4.7L V8?\u003c\/strong\u003e\u003cbr\u003eThey are compatible with many 2002-2007 Dodge Ram 1500 trucks with the 4.7L V8; confirm vehicle year and engine before purchase using the fitment list.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat common problems does replacing these parts fix?\u003c\/strong\u003e\u003cbr\u003eSwapping coils and plugs typically resolves engine misfire, rough idle, loss of power and poor fuel economy caused by worn ignition components.\u003c\/p\u003e","brand":"X4XZ","offers":[{"title":"Default Title","offer_id":48155478524123,"sku":"B0D621F2L2","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71rzvDZRbwL._AC_SL1500.jpg?v=1768877038","url":"https:\/\/gearmusthave.com\/products\/uf270-ignition-coil-4503-double-iridium-spark-plug-set-reliable","provider":"GearMustHave","version":"1.0","type":"link"}