{"product_id":"ignition-coil-iridium-spark-plugs-for-kia-optima-2004-2005-2-7l","title":"Ignition Coil + Iridium Spark Plugs for Kia Optima (2004-2005) 2.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2004-2005 Kia Optima (GD)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil pack and iridium spark plug kit replaces aged factory ignition components on the 2004-2005 Optima to eliminate cylinder misfires, restore clean flame propagation, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Kia Optima Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe waste-spark ignition pack on the \u003cstrong\u003eDelta G6BA\u003c\/strong\u003e engine is subjected to continuous thermal cycling and vibrational stress on the cylinder head. Over time, internal epoxy insulation breaks down, causing secondary winding breakdown, inter-coil arcing, and carbon tracking. Paired with worn factory standard plugs widening their gap past spec, the increased primary resistance stresses the power transistor, triggering chronic hesitation, unburned fuel blow-by, and recurring P0300 through P0306 diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis service kit pairs a high-dielectric reinforced molded coil pack with pre-gapped \u003cstrong\u003eNGK Iridium IX (5464)\u003c\/strong\u003e spark plugs. The replacement ignition coil pack features heat-resistant copper windings and premium potting compound to withstand intense engine bay heat soak while maintaining nominal dwell time. The NGK plugs utilize a 0.6mm fine-wire laser-welded iridium center electrode and tapered ground electrode to minimize quench effect, lower ignition voltage demand, and deliver consistent, high-energy spark discharge under high-load acceleration.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\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;\"\u003e2004-2005 Kia Optima\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;\"\u003e2.7L Delta V6 (G6BA) \/ GD\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;\"\u003e170 hp \/ 181 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\u003e2730137100\u003c\/strong\u003e, \u003cstrong\u003eUF284\u003c\/strong\u003e, \u003cstrong\u003e5464\u003c\/strong\u003e, 023-0048, 52-1631, CUF284, GN10417\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Kia Optima 2.7L V6 (LX, EX)\u003c\/li\u003e\n  \u003cli\u003e2005 Kia Optima 2.7L V6 (LX, EX)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GD Optima?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2004-2005 Kia Optima equipped with the \u003cstrong\u003e2.7L Delta V6 (G6BA)\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eAre spark plug wires included with this coil kit?\u003c\/h4\u003e\n\u003cp\u003eNo, high-tension secondary spark plug ignition wires are not included and must be reused or replaced separately.\u003c\/p\u003e\n\n\u003ch3\u003eThe Kia Commuter Benchmark\u003c\/h3\u003e\n\u003cp\u003eRestoring complete primary and secondary spark integrity guarantees dependable daily commuting, eliminating stubborn misfires while maximizing thermal efficiency across all six combustion chambers.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67524636705016,"sku":"DS-EGNYYWAP3","price":148.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-kia-optima-2004-2005-2-7l-1.jpg?v=1790460994","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-iridium-spark-plugs-for-kia-optima-2004-2005-2-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}