{"product_id":"ignition-coil-iridium-spark-plugs-for-toyota-highlander-2009-2019-2-7l-i4","title":"Ignition Coil \u0026 Iridium Spark Plugs for Toyota Highlander (2009-2019) 2.7L I4","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plugs for 2009-2019 Toyota Highlander (1AR-FE \/ XU40\/XU50)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDirect Replacement Ignition Upgrade:\u003c\/strong\u003e Replaces degrading factory ignition coils and standard plugs with high-output coils and iridium-tipped spark plugs to restore spark energy, eliminate misfires, and stabilize the fuel burn process.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Highlander 1AR-FE Weakness\u003c\/h3\u003e\n  \u003cp\u003eOver time and mileage, the factory ignition coils on the 2.7L 1AR-FE suffer from thermal degradation due to constant exposure to cylinder head heat. This cyclic heat soak compromises the internal epoxy and winding insulation, leading to voltage leaks and a weakened spark. Paired with worn factory spark plugs where the electrode gap has widened beyond specification, the engine experiences incomplete combustion. Mechanics often diagnose this cascading failure as a rough idle, hesitation under load, diminished fuel economy, or intermittent P0300-series misfire codes, especially during cold starts or heavy acceleration demands.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis ignition upgrade kit directly combats thermal breakdown and voltage drop. The new high-output ignition coils are manufactured with premium copper wire windings and high-dielectric epoxy, ensuring consistent primary-to-secondary voltage transfer even under extreme engine bay temperatures. They provide a precise, high-energy spark directly to the combustion chamber. Paired with performance iridium spark plugs, which feature an ultra-fine center electrode and high melting point, this kit delivers superior spark centralization. The result is a cleaner, more complete fuel burn, translating to restored factory horsepower, improved torque delivery across the RPM range, and rock-solid reliability without risking pre-ignition or fouling.\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;\"\u003e2009-2019 Toyota Highlander\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;\"\u003e1AR-FE \/ XU40, XU50\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;\"\u003e187 hp \/ 186 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;\"\u003e673-1309, 23-0480, 23-0525, 52-1894, 52-2092, C1601SPEC, EBC1039, CUF487, EBC1214, EBC1832, 26C1034, 90919A2005, C1601VC, 5C1653, IGC0176, C1596VC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2009 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2010 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2011 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2012 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2013 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2014 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2015 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2016 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2017 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2018 Toyota Highlander 2.7L I4\u003c\/li\u003e\n    \u003cli\u003e2019 Toyota Highlander 2.7L I4\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Toyota Reliability Standard\u003c\/h3\u003e\n  \u003cp\u003eEngineered to match the bulletproof reputation of Toyota's four-cylinder powerplants, this kit ensures steady performance and consistent power delivery for daily commuting and loaded family hauling without triggering a Check Engine Light (CEL).\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48266406822136,"sku":"DS-EDEI4JSRO","price":144.95,"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-highlander-2009-2019-2-7l-i4-1.jpg?v=1776814606","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-iridium-spark-plugs-for-toyota-highlander-2009-2019-2-7l-i4","provider":"Performance Chip Tuning","version":"1.0","type":"link"}