{"product_id":"ignition-coil-and-iridium-spark-plugs-for-gmc-canyon-2004-2006-3-5l","title":"Ignition Coil and Iridium Spark Plugs for GMC Canyon (2004-2006) 3.5L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Kit for 2004-2006 GMC Canyon\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Iridium Spark Plug Kit restores factory combustion efficiency and resolves secondary ignition breakdown on the 2004-2006 GMC Canyon 3.5L.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Canyon Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 3.5L Atlas engine in the \u003cstrong\u003eGMT355\u003c\/strong\u003e chassis relies on deep-well coil-on-plug packs that endure intense thermal cycling. Over time, OEM potting epoxy degrades, developing micro-fractures that lead to internal arc-over, secondary insulation breakdown, and chronic \u003cstrong\u003eP0300\u003c\/strong\u003e to \u003cstrong\u003eP0305\u003c\/strong\u003e cylinder misfire codes. Paired with aged, eroded factory spark plug gaps, the increased electrical resistance strains the ignition drivers, causing rough idle, unburnt fuel wash, and loss of towing power.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to exceed OEM baseline specs, this direct-fit ignition kit utilizes high-dielectric epoxy encapsulation and heat-resistant silicone boots to completely eliminate flashover. The pencil coils feature high-conductivity copper primary and secondary windings wound to resist internal breakdown under sustained high-load conditions. The included fine-wire iridium spark plugs feature a laser-welded electrode offering a melting point over 2,400°C. This guarantees consistent flame kernel development, stable spark propagation, and sustained cold-start reliability across the entire RPM band.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2004-2006 GMC Canyon\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eL52\u003c\/strong\u003e (Vortec 3500) \/ \u003cstrong\u003eGMT355\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e220 hp \/ 225 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eUF303\u003c\/strong\u003e, \u003cstrong\u003eGN10114\u003c\/strong\u003e, \u003cstrong\u003e1788390\u003c\/strong\u003e, \u003cstrong\u003e6737200\u003c\/strong\u003e, \u003cstrong\u003e19300921\u003c\/strong\u003e, \u003cstrong\u003eCUF303\u003c\/strong\u003e, \u003cstrong\u003e5C1392\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 GMC Canyon (Base, SLE, Z71, Z71 Fleet, Z85, Z85 Crew Cab) 3.5L L5\u003c\/li\u003e\n  \u003cli\u003e2005 GMC Canyon (Base, SLE, Z71, Z71 Fleet, Z85, Z85 Crew Cab) 3.5L L5\u003c\/li\u003e\n  \u003cli\u003e2006 GMC Canyon (SL, SLE, WT, Z71, Z71 Fleet, Z85, Z85 Crew Cab) 3.5L L5\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GMT355 Canyon?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2006 GMC Canyon equipped with the \u003cstrong\u003eL52\u003c\/strong\u003e 3.5L inline-5 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these iridium spark plugs require pre-gapping before installation?\u003c\/strong\u003e\u003cbr\u003e The iridium plugs arrive pre-gapped to factory tolerance; avoid running a mechanical feeler tool against the fine-wire center electrode to prevent damaging the iridium tip.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Workhorse Caliber\u003c\/h3\u003e\n\u003cp\u003eLight-duty pickups demand resilient ignition performance when hauling payload or running heavy utility cycles. This 5-coil, 5-plug service kit restores low-end torque delivery and fuel efficiency under towing loads, maintaining factory engine reliability without ignition dropouts.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50604276613368,"sku":"DS-ELY7EKPW5","price":94.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-gmc-canyon-2004-2006-3-5l-1.jpg?v=1790088767","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-gmc-canyon-2004-2006-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}