{"product_id":"ignition-coil-iridium-spark-plugs-for-jeep-grand-cherokee-2011-2015-3-6l","title":"Ignition Coil \u0026 Iridium Spark Plugs for Jeep Grand Cherokee (2011-2015) 3.6L","description":"\u003ch2\u003eHigh-Voltage Ignition Coil \u0026amp; Iridium Spark Plugs for 2011-2015 Jeep Grand Cherokee (Pentastar \/ WK2)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces degrading factory ignition components to restore optimal spark energy, preventing misfires and stabilizing idle under varying load conditions.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eThe Stock Grand Cherokee Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eThe 3.6L Pentastar V6 in the WK2 chassis is notorious for gradual ignition system fatigue, particularly when approaching the 80,000-mile mark. The OEM ignition coils suffer from thermal breakdown due to prolonged heat soak in the engine bay, leading to internal resistance increases within the primary and secondary windings. Simultaneously, factory standard spark plugs experience electrode erosion over time. This combination results in a weakened spark, causing intermittent misfires, a rough idle, delayed throttle response, and decreased fuel efficiency, especially under heavy loads like towing or off-road navigation.\u003c\/p\u003e\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis ignition coil and iridium spark plug kit is engineered to provide a robust, long-term solution for the 3.6L engine. The replacement coils feature upgraded internal copper windings and high-temperature epoxy, enhancing thermal shock resistance and ensuring a consistent, high-voltage output even under extreme underhood temperatures. Paired with iridium-tipped spark plugs, the system delivers a highly concentrated, stable spark. Iridium's exceptional hardness and high melting point drastically reduce electrode wear, allowing for precise gap retention over extended mileage. This restores factory combustion efficiency, eliminates hesitation, and ensures reliable cold starts.\u003c\/p\u003e\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;\"\u003e2011-2015 Jeep Grand Cherokee\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 Pentastar V6 \/ WK2\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;\"\u003e290 hp \/ 260 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2011-2015 Jeep Grand Cherokee Laredo 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2011-2015 Jeep Grand Cherokee Limited 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2011-2015 Jeep Grand Cherokee Overland 3.6L V6\u003c\/li\u003e\n\u003cli\u003e2011-2015 Jeep Grand Cherokee Summit 3.6L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Jeep Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand the rigors of heavy towing and extended trail use, this ignition upgrade ensures your Pentastar V6 maintains peak operational reliability, preventing trailside misfires and keeping your WK2 running strong in the toughest environments.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234545742072,"sku":"DS-EVFUPWGRR","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-jeep-grand-cherokee-2011-2015-3-6l-1.jpg?v=1776107071","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-iridium-spark-plugs-for-jeep-grand-cherokee-2011-2015-3-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}