{"product_id":"kacuyelin-ignition-coil-pack-iridium-plugs-set-of-5-uf303-fits-chevy-gmc-hummer-isuzu-3-5l","title":"KacuYelin Ignition Coil Pack \u0026 Iridium Plugs Set of 5 UF303 — Fits Chevy GMC Hummer Isuzu 3.5L","description":"\u003cp\u003e\u003cstrong\u003eThe KacuYelin UF303 ignition coil pack with five iridium spark plugs is a direct-fit replacement kit engineered to restore reliable spark, improve combustion stability, and match OEM specifications for specified Chevrolet, GMC, Hummer and Isuzu 3.5L\/2.8L\/2.9L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete ignition set bundles a UF303 coil pack built with high-purity copper windings, a silicon-steel core and heat-resistant epoxy with five long-life iridium spark plugs. Together they are designed to deliver consistent high-voltage output and concentrated sparks for better ignition control. The kit is manufactured in TS16949-certified facilities and carries multiple OE references (12568062, 19300921 and others) so you can replace worn components with confidence.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engines will this kit fit?\u003c\/h3\u003e\n\u003cp\u003eThis KacuYelin set is tailored for a specific group of GM and Isuzu models from the mid-2000s. Confirm year, model, engine displacement and submodel in your vehicle fitment tool before ordering to ensure an exact match.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevrolet Colorado 2004–2006: 2.8L L4 and 3.5L L5\u003c\/li\u003e\n  \u003cli\u003eGMC Canyon 2004–2006: 2.8L L4 and 3.5L L5\u003c\/li\u003e\n  \u003cli\u003eHummer H3 2006: 3.5L L5\u003c\/li\u003e\n  \u003cli\u003eIsuzu i-280 2006: 2.8L L4; i-290 2007–2008: 2.9L L4; i-350 2006: 3.5L L5; i-370 2007–2008: 3.7L L5\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the ignition coil and iridium plugs improve performance?\u003c\/h3\u003e\n\u003cp\u003eThe coil pack uses premium materials—imported copper windings and a silicon-steel core—encased in a high-temperature epoxy to maintain stable voltage and resist corrosion. The iridium plugs feature a continuous laser-welded center electrode and high-purity nickel for extended wear resistance. Together they aim to support more reliable starts, stable idling and reduced misfires when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-voltage stability from corrosion-resistant coil materials\u003c\/li\u003e\n  \u003cli\u003eConcentrated, stronger sparks from 360° laser-welded iridium electrodes\u003c\/li\u003e\n  \u003cli\u003eImproved resistance to electrode wear and oxidation for long service life\u003c\/li\u003e\n  \u003cli\u003eDirect OEM-matching form factor for plug-and-play installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the durability and manufacturing highlights?\u003c\/h3\u003e\n\u003cp\u003eKacuYelin manufactures this kit in TS16949-certified facilities and follows tested production processes. The spark plugs use 95% alumina ceramics for heat resistance and insulation, while nickel content and cold-extrusion processes improve longevity. The coil pack’s materials reduce oxidation and support consistent output across operating temperatures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTS16949-certified production for consistent quality control\u003c\/li\u003e\n  \u003cli\u003eHigh alumina ceramic insulators for thermal and electrical stability\u003c\/li\u003e\n  \u003cli\u003eNickel-rich electrodes and cold-extrusion for long life (60,000–100,000 miles typical range)\u003c\/li\u003e\n  \u003cli\u003eMultiple OE references included for compatibility verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit affect fuel economy or emissions?\u003c\/h3\u003e\n\u003cp\u003eReplacing degraded ignition components can restore ignition efficiency and reduce incomplete combustion that contributes to higher fuel use and emissions. The manufacturer reports potential fuel-efficiency gains after installation, but actual results depend on vehicle condition and driving habits. This product is designed to meet standard emission-related fitment expectations, but no regulatory claim is made here.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimized spark for more complete combustion under proper engine conditions\u003c\/li\u003e\n  \u003cli\u003eReduced carbon deposition from precise ignition timing and stronger sparks\u003c\/li\u003e\n  \u003cli\u003eDesigned to align with OEM emission-function expectations when fitted correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This KacuYelin UF303 coil pack plus five iridium spark plugs kit is intended for owners and mechanics restoring mid-2000s Chevrolet Colorado, GMC Canyon, Hummer H3 and compatible Isuzu models who need an OEM-matching, long-life ignition solution. It suits DIY installers and professional shops replacing failing coils or worn spark plugs, provided you verify exact year, engine and submodel compatibility before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit directly replace the OEM UF303 coil pack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The KacuYelin UF303 coil pack is designed to match OEM fit and electrical specifications for compatible models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do the iridium spark plugs typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Under normal conditions, the iridium plugs are rated for approximately 60,000–100,000 miles depending on driving and engine maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KacuYelin","offers":[{"title":"Default Title","offer_id":48081818714270,"sku":"B0F9WKGCCW","price":121.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kacuyelin-uf303-coilpack-front-view.jpg?v=1785809839","url":"https:\/\/northtrailauto.ca\/products\/kacuyelin-ignition-coil-pack-iridium-plugs-set-of-5-uf303-fits-chevy-gmc-hummer-isuzu-3-5l","provider":"North Trail Auto","version":"1.0","type":"link"}