{"product_id":"ignition-coil-and-iridium-spark-plugs-for-isuzu-i-370-2007-2008-3-7l","title":"Ignition Coil and Iridium Spark Plugs for Isuzu i-370 (2007-2008) 3.7L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Kit for 2007-2008 Isuzu i-370\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit replaces fatigued factory coil packs and degraded plugs on the 2007-2008 Isuzu i-370 to eliminate misfires, restore combustion efficiency, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Isuzu i-370 Dielectric Breakdown Weakness\u003c\/h3\u003e\n\u003cp\u003eThe factory ignition architecture on the \u003cstrong\u003eGMT355\u003c\/strong\u003e platform paired with the \u003cstrong\u003eAtlas LLR\u003c\/strong\u003e 3.7L inline-five engine subjects coil-on-plug pencil modules to severe thermal cycling directly above the exhaust manifold side of the cylinder head. Over time, internal epoxy potting breaks down and secondary winding insulation deteriorates from chronic heat soak. This thermal degradation creates internal short circuits and high-voltage leak paths, causing partial spark delivery, sluggish throttle response, and cylinder-specific misfire codes (P0300–P0305). Furthermore, worn factory spark plug gaps increase the required breakdown voltage, accelerating coil stress and causing intermittent combustion failure under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit pairs five high-output pencil coils with precision-engineered iridium spark plugs to restore factory secondary ignition performance. Each coil is wound with high-conductivity copper wire sealed in high-grade dielectric epoxy to eliminate arc-through and resist thermal fracturing. The accompanying spark plugs utilize an ultra-fine iridium center electrode and nickel ground design, requiring lower ionization voltage to jump the gap while offering extreme resistance to electrical erosion and carbon fouling. Fitted with heat-resistant silicone boots and corrosion-resistant internal stainless steel springs, this kit directly restores sharp throttle modulation and steady idle on your \u003cstrong\u003eAtlas LLR\u003c\/strong\u003e engine without requiring ECU modification.\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;\"\u003e2007-2008 Isuzu i-370\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\u003eAtlas LLR\u003c\/strong\u003e (3.7L I5) \/ \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;\"\u003e242 hp \/ 242 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\u003e2007 Isuzu i-370 LS Extended Cab 3.7L L5\u003c\/li\u003e\n  \u003cli\u003e2007 Isuzu i-370 LS Crew Cab 3.7L L5\u003c\/li\u003e\n  \u003cli\u003e2008 Isuzu i-370 LS Extended Cab 3.7L L5\u003c\/li\u003e\n  \u003cli\u003e2008 Isuzu i-370 LS Crew Cab 3.7L 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 i-370?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2007-2008 Isuzu i-370 equipped with the \u003cstrong\u003eAtlas LLR\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these iridium plugs require gapping prior to installation?\u003c\/strong\u003e\u003cbr\u003e The spark plugs come pre-set to factory specifications, but verifying electrode gap before installation is recommended to guarantee proper arc clearance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Isuzu Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the demands of working trucks, this ignition kit provides steady spark delivery to preserve low-end torque, payload capacity, and reliable cold-weather starting under demanding utility conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50604507332856,"sku":"DS-EDU67ZKLR","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-isuzu-i-370-2007-2008-3-7l-1.jpg?v=1790088973","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-isuzu-i-370-2007-2008-3-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}