{"product_id":"ignition-coil-and-iridium-spark-plugs-for-hyundai-sonata-2011-2014-2-0l","title":"Ignition Coil and Iridium Spark Plugs for Hyundai Sonata (2011-2014) 2.0L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2011-2014 Hyundai Sonata\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit restores primary secondary ignition circuit integrity on the 2011-2014 Hyundai Sonata to eliminate misfires, stabilize idle RPM, and restore combustion efficiency under boost.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Hyundai Sonata Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eFactory coil packs on the \u003cstrong\u003eYF\u003c\/strong\u003e chassis running the \u003cstrong\u003eTheta II\u003c\/strong\u003e (\u003cstrong\u003eG4KH\u003c\/strong\u003e) turbocharged engine are subjected to extreme thermal cycling and cylinder head heat soak. Over time, the internal copper primary and secondary windings degrade, resulting in micro-arcing and insulation breakdown inside the pencil coil boot. Simultaneously, high cylinder pressures under load widen standard spark plug gaps prematurely, triggering common P0300 through P0304 DTC fault codes, hesitation during tip-in throttle, and lost thermal efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive tune-up kit delivers four heavy-duty coil-on-plug pencil units paired with precision laser-welded iridium electrode spark plugs. The ignition coils feature high-dielectric epoxy resin encapsulation to resist thermal breakdown and eliminate voltage leakage across the spark track. Combined with ultra-fine wire iridium center electrodes and platinum ground pads, this kit provides a stable, concentrated spark kernel that resists spark blowout under peak boost while operating at lower required primary firing voltages. Replaces interchange numbers \u003cstrong\u003eUF647\u003c\/strong\u003e and \u003cstrong\u003eHL3Z12029A\u003c\/strong\u003e.\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;\"\u003e2011-2014 Hyundai Sonata\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;\"\u003eTheta II 2.0T (G4KH) \/ YF\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;\"\u003e274 hp \/ 269 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;\"\u003eUF647, HL3Z12029A, KIN119978TOP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011 Hyundai Sonata 2.0L 4-Cylinder Turbo (YF)\u003c\/li\u003e\n  \u003cli\u003e2012 Hyundai Sonata 2.0L 4-Cylinder Turbo (YF)\u003c\/li\u003e\n  \u003cli\u003e2013 Hyundai Sonata 2.0L 4-Cylinder Turbo (YF)\u003c\/li\u003e\n  \u003cli\u003e2014 Hyundai Sonata 2.0L 4-Cylinder Turbo (YF)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the YF Sonata?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2011-2014 Hyundai Sonata equipped with the Theta II 2.0L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the spark plugs pre-gapped for direct installation?\u003c\/strong\u003e\u003cbr\u003e Yes, the iridium plugs are pre-gapped to factory specifications, though checking gap clearance prior to threading is always recommended.\u003c\/p\u003e\n\n\u003ch3\u003eThe Hyundai Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand the demanding cylinder pressures of forced-induction direct-injection engines, this ignition kit maintains complete diagnostic compliance, preventing check engine lights and restoring smooth daily drivability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50594075312376,"sku":"DS-E83FSXJQL","price":68.95,"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-hyundai-sonata-2011-2014-2-0l-1.jpg?v=1790056750","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-hyundai-sonata-2011-2014-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}