{"product_id":"ignition-coil-iridium-spark-plugs-for-hyundai-tucson-2018-2021-2-4l","title":"Ignition Coil + Iridium Spark Plugs for Hyundai Tucson (2018-2021) 2.4L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Service Kit for 2018-2021 Hyundai Tucson\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit replaces degraded factory ignition components on the 2018-2021 Hyundai Tucson 2.4L to restore combustion efficiency, eliminate cylinder misfires, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Hyundai Tucson Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe direct-injected \u003cstrong\u003eTheta II GDI\u003c\/strong\u003e powerplant in the \u003cstrong\u003eTL chassis\u003c\/strong\u003e Tucson places severe thermal demands on the secondary ignition system. Over time, engine bay heat cycles degrade the internal copper windings and breakdown the epoxy insulation inside factory \u003cstrong\u003e273002GGA0\u003c\/strong\u003e coil packs. This thermal stress causes micro-arcing, dielectric punch-through, and high-rpm voltage drop. Concurrently, factory plugs suffer electrode erosion from lean GDI combustion ratios, widening the gap and forcing deteriorating coils to generate higher breakdown voltages, ultimately triggering P0300-P0304 misfire codes, hesitations under load, and unburned fuel entering the catalytic converter.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive tune-up kit features four coil-on-plug units engineered with high-dielectric epoxy potting, reinforced thermoplastic boots, and premium primary\/secondary copper windings designed to resist thermal breakdown and carbon tracking. Paired with four fine-wire iridium-tipped spark plugs, this kit provides a concentrated, low-voltage arc capable of reliable ignition within high-pressure direct-injection combustion chambers. The high melting point of iridium minimizes electrode erosion, preserving precise factory spark gap tolerances and ensuring clean flame kernel propagation under load.\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;\"\u003e2018-2021 Hyundai Tucson\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;\"\u003e2.4L Theta II GDI (G4KJ) \/ TL Chassis\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;\"\u003e181 hp \/ 175 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;\"\u003e273002GGA0, UF764, 5C2091, GN10730, IC871\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2018 Hyundai Tucson 2.4L 4-Cylinder\u003c\/li\u003e\n  \u003cli\u003e2019 Hyundai Tucson 2.4L 4-Cylinder\u003c\/li\u003e\n  \u003cli\u003e2020 Hyundai Tucson 2.4L 4-Cylinder\u003c\/li\u003e\n  \u003cli\u003e2021 Hyundai Tucson 2.4L 4-Cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the TL Tucson?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2018-2021 Hyundai Tucson equipped with the \u003cstrong\u003e2.4L Theta II GDI\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould spark plugs and coil packs always be replaced at the same time?\u003c\/strong\u003e\u003cbr\u003e Yes, pairing fresh iridium plugs with new coils ensures uniform secondary resistance across all cylinders, preventing premature coil failure from excessive gap strain.\u003c\/p\u003e\n\n\u003ch3\u003eThe Hyundai Commuter Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned for straightforward plug-and-play installation, this ignition kit delivers reliable cold starts, smooth power delivery, and factory diagnostic compliance without the need for ECU recalibration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50623709249784,"sku":"DS-ENY4X0WW2","price":208.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-hyundai-tucson-2018-2021-2-4l-1.jpg?v=1790298461","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-iridium-spark-plugs-for-hyundai-tucson-2018-2021-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}