{"product_id":"ignition-coil-iridium-spark-plugs-for-lexus-ls-2007-2017-4-6l-5-0l","title":"Ignition Coil + Iridium Spark Plugs for Lexus LS (2007-2017) 4.6L 5.0L","description":"\u003ch2\u003eDirect-Fit Ignition Tune-Up Kit for 2007-2017 Lexus LS\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit replaces worn high-voltage secondary ignition components on the 2007-2017 Lexus LS to eliminate cylinder misfires, stabilize idle, and restore combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lexus LS Thermal Degradation \u0026amp; High-Mileage Spark Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1UR-FSE\u003c\/strong\u003e and \u003cstrong\u003e2UR-FSE\u003c\/strong\u003e V8 engines in the \u003cstrong\u003eXF40\u003c\/strong\u003e platform generate substantial underhood ambient heat due to dense packaging and dual high-pressure direct injection systems. Over extended thermal cycles, the factory epoxy encapsulation and internal primary\/secondary copper windings in the original \u003cstrong\u003eUF630\u003c\/strong\u003e ignition coils degrade. Micro-fractures develop in the coil boots, leading to dielectric breakdown and secondary voltage leakages to the cylinder head spark plug tubes. Concurrently, factory fine-wire center electrodes erode past nominal gap specifications, increasing required firing voltage and overworking aging igniters. This causes hesitations under load, DTCs (P0300-P0308), rough cold starts, and unburnt fuel washing down catalytic converters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete 8-cylinder ignition overhaul kit pairs heavy-duty coil-on-plug (COP) units with fine-wire iridium spark plugs to restore factory-spec spark propagation. The ignition coils feature heat-resistant thermoplastic housings filled with high-dielectric resin to prevent high-voltage arcing under sustained thermal stress. Internal primary and secondary windings utilize high-conductivity insulated copper wire for rapid primary charge times and peak inductive discharge. The included iridium spark plugs provide superior corrosion resistance and a laser-welded center electrode that maintains a precise gap under lean-burn stratified-charge conditions, ensuring crisp throttle response and complete fuel atomization.\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;\"\u003e2007-2017 Lexus LS\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;\"\u003e1UR-FSE (4.6L), 2UR-FSE (5.0L) \/ XF40\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;\"\u003e380-386 hp \/ 367 lb-ft (4.6L); 438 hp \/ 385 lb-ft (5.0L System)\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;\"\u003e9091902256, 90919A2005, UF630, UF507, UF587, 3473\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2017 Lexus LS460 \/ LS460L 4.6L V8 (1UR-FSE)\u003c\/li\u003e\n  \u003cli\u003e2008-2016 Lexus LS600h \/ LS600hL 5.0L V8 Hybrid (2UR-FSE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the XF40 LS?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2007-2017 Lexus LS equipped with the 1UR-FSE or 2UR-FSE engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould spark plugs and ignition coils be replaced at the same time?\u003c\/strong\u003e\u003cbr\u003e Yes, installing fresh plugs with new coils prevents excessive electrical resistance from damaging the new coil windings and ensures balanced cylinder-to-cylinder combustion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lexus Engineering Caliber\u003c\/h3\u003e\n\u003cp\u003eLexus V8 powerplants demand exact electrical tolerances to retain the flagship refinement, effortless power delivery, and ultra-smooth idle inherent to the marque. Refreshing the secondary ignition system ensures your luxury powertrain operates within its engineered factory thresholds.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50623710036216,"sku":"DS-ES5B6809Z","price":210.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-lexus-ls-2007-2017-4-6l-5-0l-1.jpg?v=1790298617","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-iridium-spark-plugs-for-lexus-ls-2007-2017-4-6l-5-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}