{"product_id":"ignition-coil-iridium-spark-plugs-for-toyota-sequoia-tundra-2005-2009-4-7l-v8","title":"Ignition Coil \u0026 Iridium Spark Plugs for Toyota Sequoia Tundra (2005-2009) 4.7L V8","description":"\u003ch2\u003eHigh-Dielectric Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2005-2009 Toyota Tundra, Sequoia (2UZ-FE \/ UCK)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eRestores critical secondary ignition voltage and combustion efficiency for the 4.7L 2UZ-FE V8, eliminating misfires and power loss under load.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock 2UZ-FE Ignition Heat Soak Issue\u003c\/h3\u003e\n\u003cp\u003eThe OEM coil-on-plug (COP) ignition system on the 2005-2009 Toyota 4.7L V8 suffers from severe thermal degradation. Constant exposure to extreme engine bay temperatures causes the factory epoxy to micro-crack. Once the dielectric casing fractures, secondary voltage leaks directly to the cylinder head. This heat soak phenomenon results in intermittent misfires, lost low-end torque during towing, and rough idling. Furthermore, worn standard spark plugs increase electrical resistance, forcing the stock coils to operate at maximum duty cycles, rapidly accelerating their failure rate.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement kit solves chronic 2UZ-FE ignition failure by combining heavily insulated coils with performance-grade iridium spark plugs. The upgraded coils feature a high-dielectric epoxy resin formulated to resist thermal breakdown, protecting the internal copper windings from heat-induced micro-fractures. These coils maximize magnetic field density to consistently deliver high-voltage energy without parasitic loss. Paired with ultra-fine wire iridium center electrodes, the system lowers the voltage required to bridge the spark gap. Iridium's high melting point ensures gap precision over thousands of miles, delivering a stabilized idle, optimized fuel economy, and restored towing power.\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;\"\u003e2005-2009 Toyota Tundra, Sequoia\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;\"\u003e2UZ-FE \/ UCK30, UCK40, UCK50, UCK60\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;\"\u003e276 hp \/ 313 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;\"\u003e9091902230, 5C1196, UF230T, IC336SB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2009 Toyota Tundra (4.7L V8)\u003c\/li\u003e\n  \u003cli\u003e2005-2009 Toyota Sequoia (4.7L V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Toyota Heavy-Duty Towing Standard\u003c\/h3\u003e\n\u003cp\u003eToyota trucks are renowned for extreme powertrain durability. Upgrading to these thermal-resistant ignition components ensures your 4.7L V8 continues delivering the uncompromising towing capacity and backcountry reliability expected from the UCK chassis, without the threat of a misfire on the trail.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48262499631352,"sku":"DS-EID32YH3A","price":209.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-toyota-sequoia-tundra-2005-2009-4-7l-v8-1.jpg?v=1776723551","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-iridium-spark-plugs-for-toyota-sequoia-tundra-2005-2009-4-7l-v8","provider":"Performance Chip Tuning","version":"1.0","type":"link"}