{"product_id":"ignition-coil-and-iridium-spark-plugs-for-kia-cadenza-2016-2020-3-3l","title":"Ignition Coil and Iridium Spark Plugs for Kia Cadenza (2016-2020) 3.3L","description":"\u003ch2\u003eOEM-Grade Ignition Coil and Iridium Spark Plug Kit for 2016-2020 Kia Cadenza\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 fouled plugs on the 2016-2020 Kia Cadenza to eliminate misfires, stabilize idle, and restore crisp throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Kia Cadenza Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThermal cycling inside the transverse engine bay severely degrades the factory pencil coils on the 3.3L \u003cstrong\u003eLambda II G6DH\u003c\/strong\u003e V6. Bank 1 rear cylinders sit directly under the intake plenum, trapping radiant heat that breaks down internal copper windings and hardens lower silicone spark plug boots over time. This thermal fatigue causes dielectric breakdown, micro-arcing, and intermittent high-RPM misfires accompanied by P0300-P0306 diagnostic trouble codes. Simultaneously, factory spark plug electrode erosion increases secondary voltage demand, placing unnecessary electrical load on aging coil drivers and leading to incomplete combustion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete six-cylinder service kit restores primary and secondary ignition integrity using high-dielectric epoxy resin and high-grade copper windings engineered to resist prolonged thermal saturation. The matched fine-wire iridium spark plugs lower the required ionization voltage across the gap, providing consistent flame front propagation even under high cylinder pressures. Molded silicone boots prevent corona discharge and carbon tracking down the plug insulator. Designed as direct-fit replacements for OEM parts \u003cstrong\u003e273103L000\u003c\/strong\u003e and \u003cstrong\u003eUF844\u003c\/strong\u003e, this kit installs seamlessly with factory dwell timing and harness connectors without requiring ECU modifications.\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;\"\u003e2016-2020 Kia Cadenza\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;\"\u003eLambda II G6DH 3.3L V6 \/ \u003cstrong\u003eYG\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;\"\u003e290 hp \/ 253 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;\"\u003e273103L000, UF844\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2016 Kia Cadenza 3.3L V6 (Premium, Limited)\u003c\/li\u003e\n  \u003cli\u003e2017 Kia Cadenza 3.3L V6 (Premium, Technology, Limited)\u003c\/li\u003e\n  \u003cli\u003e2018 Kia Cadenza 3.3L V6 (Premium, Technology, Limited)\u003c\/li\u003e\n  \u003cli\u003e2019 Kia Cadenza 3.3L V6 (Premium, Technology, Limited)\u003c\/li\u003e\n  \u003cli\u003e2020 Kia Cadenza 3.3L V6 (Technology, Limited)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the YG Cadenza?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2016-2020 Kia Cadenza equipped with the \u003cstrong\u003eLambda II G6DH\u003c\/strong\u003e 3.3L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the iridium spark plugs pre-gapped for this engine?\u003c\/strong\u003e\u003cbr\u003e Yes, the spark plugs are calibrated to factory gap dimensions, though verifying gap clearance prior to torquing is standard service procedure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Kia Drivability Caliber\u003c\/h3\u003e\n\u003cp\u003eRestoring clean ignition performance across all six cylinders preserves catalytic converter efficiency, eliminates raw fuel washdown in cylinder bores, and maintains the refined highway cruising dynamics demanded of an executive sedan.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50594128429304,"sku":"DS-E1ZEBFWXV","price":158.95,"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-kia-cadenza-2016-2020-3-3l-1.jpg?v=1790057295","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-kia-cadenza-2016-2020-3-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}