{"product_id":"ignition-coil-spark-plugs-for-land-rover-lr3-2006-2009-4-4l","title":"Ignition Coil + Spark Plugs for Land Rover LR3 (2006-2009) 4.4L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Spark Plug Kit for 2006-2009 Land Rover LR3\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and spark plug kit replaces worn factory ignition components on the 2006-2009 LR3 to eliminate engine misfires, restore lost combustion efficiency, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Land Rover LR3 Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eUnder-hood heat soak in the \u003cstrong\u003eL319\u003c\/strong\u003e engine bay accelerates the breakdown of the factory coil packs on the \u003cstrong\u003eAJ41\u003c\/strong\u003e 4.4L V8. Over time, high thermal cycling degrades the internal epoxy resin and silicone boots, creating microscopic fissures. These stress fractures cause high-voltage secondary arc-through, dielectric breakdown, and intermittent spark blowout under load. Paired with aged spark plugs suffering from worn center electrodes and expanded plug gaps, the ignition system demands higher primary voltage from the ECU, ultimately causing rough idles, hesitation, unburned hydrocarbon emissions, and persistent P0300-P0308 diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit features eight precision-wound ignition coils matched with eight properly gapped spark plugs. The coils are manufactured with high-temperature epoxy potting and heat-resistant silicone boots to isolate voltage leaks and resist thermal stress. Optimized primary and secondary copper windings deliver high-energy spark discharge directly to the combustion chamber. Paired with corrosion-resistant, high-conductivity spark plugs, this kit stabilizes flame-front propagation, improves throttle response, and preserves catalytic converter efficiency.\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;\"\u003e2006-2009 Land Rover LR3\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;\"\u003e\n\u003cstrong\u003eAJ41\u003c\/strong\u003e 4.4L V8 \/ \u003cstrong\u003eL319\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;\"\u003e300 hp \/ 315 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;\"\u003e\n\u003cstrong\u003eUF519\u003c\/strong\u003e, \u003cstrong\u003e4744015\u003c\/strong\u003e, \u003cstrong\u003eAJ810445\u003c\/strong\u003e, \u003cstrong\u003e3924\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2006 Land Rover LR3 4.4L V8 (Base, HSE, SE)\u003c\/li\u003e\n  \u003cli\u003e2007 Land Rover LR3 4.4L V8 (HSE, SE)\u003c\/li\u003e\n  \u003cli\u003e2008 Land Rover LR3 4.4L V8 (HSE, SE)\u003c\/li\u003e\n  \u003cli\u003e2009 Land Rover LR3 4.4L V8 (HSE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the L319 LR3?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct-fit replacement for the 2006-2009 Land Rover LR3 equipped with the naturally aspirated \u003cstrong\u003eAJ41\u003c\/strong\u003e 4.4L V8 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I replace all eight coils and plugs simultaneously?\u003c\/strong\u003e\u003cbr\u003e Yes, replacing all coils and plugs as an entire set prevents electrical resistance imbalances across the engine bank and stops secondary misfire codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Land Rover Precision Standard\u003c\/h3\u003e\n\u003cp\u003eMaintaining factory European engine management standards requires clean, consistent spark delivery to keep fuel trim levels balanced and prevent unmetered cylinder wash. This direct-replacement ignition kit meets strict factory coil-on-plug tolerances to ensure immediate cold starts, smooth highway cruising, and zero CEL faults.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50623717409016,"sku":"DS-E6TLFTFSY","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-land-rover-lr3-2006-2009-4-4l-1.jpg?v=1790298848","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-land-rover-lr3-2006-2009-4-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}