{"product_id":"ignition-coil-and-iridium-spark-plugs-for-cadillac-xt6-2020-2021-3-6l","title":"Ignition Coil and Iridium Spark Plugs for Cadillac XT6 (2020-2021) 3.6L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2020-2021 Cadillac XT6\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat It Does:\u003c\/strong\u003e Restores factory secondary ignition output and combustion efficiency across all cylinders by replacing fatigued coils and fouled plugs in a single matched service set.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock XT6 Secondary Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe direct-injected 3.6L LGX V6 operates under elevated combustion chamber pressures and tight engine bay thermal packaging. Over prolonged duty cycles, factory ignition coil epoxy encapsulation suffers from heat-induced micro-fracturing and dielectric boot degradation, causing high-voltage arcing to ground. In parallel, standard plug ground straps erode, widening the spark gap and imposing severe electrical stress on the primary coil drivers, culminating in high-load misfires (DTC P0300-P0306), unburnt hydrocarbon build-up, and sluggish throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement ignition kit pairs six high-dielectric coil-on-plug assemblies with six laser-welded iridium spark plugs. The ignition coils utilize oxygen-free high-conductivity copper windings sealed in thermal-stable resin to resist dielectric breakdown and thermal fatigue. Paired with fine-wire iridium center electrodes, this package significantly lowers required arc voltage, resists quenching, and produces a stable flame kernel under variable-valve-timing transitions for consistent cylinder pressure generation.\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;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2020-2021 Cadillac XT6\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3.6L LGX V6 \/ C1XX Platform\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e310 hp \/ 271 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF830, UF-830, 12666339, C-962, C2035, 5C2094, GN10889\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2020 Cadillac XT6 Premium Luxury (3.6L V6 LGX)\u003c\/li\u003e\n  \u003cli\u003e2020 Cadillac XT6 Sport (3.6L V6 LGX)\u003c\/li\u003e\n  \u003cli\u003e2021 Cadillac XT6 Premium Luxury (3.6L V6 LGX)\u003c\/li\u003e\n  \u003cli\u003e2021 Cadillac XT6 Sport (3.6L V6 LGX)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Cadillac Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet rigorous OEM operational parameters, these components maintain accurate electrical resistance feedback to the powertrain control module (PCM), preventing false-positive misfire codes while restoring quiet, vibration-free cabin idle and seamless acceleration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448509141240,"sku":"DS-EYJOMPRI1","price":129.95,"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-cadillac-xt6-2020-2021-3-6l-1.jpg?v=1788648404","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-cadillac-xt6-2020-2021-3-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}