{"product_id":"ignition-coil-pack-uf303-and-iridium-spark-plugs-5019-engine","title":"Ignition Coil Pack UF303 and Iridium Spark Plugs 5019 - Engine","description":"\u003cp\u003eOur review of this ignition coil pack UF303 paired with iridium spark plugs 5019 finds it best for owners of specific mid-2000s Isuzu, Chevy, GMC and Hummer models who want a straightforward replacement to cure misfires and restore throttle response. The single biggest reason to buy is that the kit combines high-grade coils made with silicon steel and imported materials plus iridium electrode plugs, which together often bring rough-running engines back to smooth operation without complicated installation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel compatibility:\u003c\/strong\u003e Fits 2007-2008 Isuzu i-370, 2006 Isuzu i-350, 2004-2006 Chevy Colorado, 2004-2006 GMC Canyon and 2006 Hummer H3, making this a targeted replacement set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition coil construction:\u003c\/strong\u003e Coils are built with silicon steel cores, Japan-imported rubber, and Germany-imported varnished wire to improve longevity and heat resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark plug design:\u003c\/strong\u003e Iridium electrode and engineered ceramic in the 5019 plugs promote quicker starts and stronger acceleration after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE cross-reference:\u003c\/strong\u003e Supplied with multiple OE references such as UF303, 12568062 and IC414 to help confirm fit before purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete set:\u003c\/strong\u003e Sold as a set of five, providing all coils and plugs needed for applicable 4.3L\/3.7L engines in one purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer support:\u003c\/strong\u003e Backed by a parts manufacturer with over ten years in the aftermarket and a stated factory and developer network for product updates.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is for owners of the listed mid-2000s Isuzu, Chevy, GMC and Hummer vehicles who are experiencing symptoms like engine shaking, hard starting, slow acceleration or rising fuel consumption and want a direct replacement to restore performance. It is also suited to DIYers and independent shops that prefer components with OE cross-reference numbers for quicker verification.\u003c\/p\u003e\u003cp\u003eIt is not ideal for drivers whose vehicles are outside the stated fitment years or who lack the ability to verify OE numbers; some customers reported fitment variance, so those needing an exact match should confirm part numbers before purchase or consult their dealer.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eImproves engine performance and cures misfires in many reported cases, delivering smoother idle and stronger throttle response.\u003c\/li\u003e\n\u003cli\u003eHigh-quality coil materials and iridium plugs increase lifespan and deliver reliable ignition under heat.\u003c\/li\u003e\n\u003cli\u003eGood value for a full set of five parts and generally straightforward to install for experienced users.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome customers reported fitment issues, so OE checking is necessary before buying to avoid mismatch.\u003c\/li\u003e\n\u003cli\u003eA few reports of corrosion and premature coil failure indicate occasional quality variance in real-world use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBDFHYK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eIgnition Coil UF303 and Spark Plug 5019 set of 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eIsuzu i-370 i-350, Chevy Colorado, GMC Canyon, Hummer H3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplicable Years\u003c\/td\u003e\n\u003ctd\u003e2004-2008 (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark Plug Type\u003c\/td\u003e\n\u003ctd\u003eIridium electrode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Materials\u003c\/td\u003e\n\u003ctd\u003eSilicon steel, Japan rubber, Germany varnished wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE Cross References\u003c\/td\u003e\n\u003ctd\u003eUF303, 12568062, IC414 and related numbers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThis coil pack and iridium plug set is a worthwhile, budget-friendly option for owners of the specified mid-2000s Isuzu, Chevy, GMC and Hummer vehicles who need to replace worn ignition components and restore engine smoothness. Confirm OE numbers before purchase; when it fits, the combination delivers solid performance gains and good longevity for the price.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these parts fit my vehicle?\u003c\/strong\u003e\u003cbr\u003eCheck the listed OE cross-reference numbers and the specific model years shown in the product details to confirm fit before buying.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo the spark plugs use iridium?\u003c\/strong\u003e\u003cbr\u003eYes, the 5019 plugs in this set use an iridium electrode paired with a ceramic insulator for improved starting and acceleration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre all five coils and plugs included?\u003c\/strong\u003e\u003cbr\u003eYes, the kit is sold as a complete set of five coils and five spark plugs for the applicable engines.\u003c\/p\u003e","brand":"BDFHYK","offers":[{"title":"Default Title","offer_id":48609392492763,"sku":"B0D12J4R8R","price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71H8e-BADAL._AC_SL1500.jpg?v=1778421324","url":"https:\/\/gearmusthave.com\/products\/ignition-coil-pack-uf303-and-iridium-spark-plugs-5019-engine","provider":"GearMustHave","version":"1.0","type":"link"}