{"product_id":"ignition-coil-and-iridium-spark-plugs-for-lexus-hs250h-2010-2012-2-4l","title":"Ignition Coil and Iridium Spark Plugs for Lexus HS250h (2010-2012) 2.4L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2010-2012 Lexus HS250h\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit restores factory combustion efficiency and stabilizes engine idle on the 2010-2012 Lexus HS250h by delivering consistent high-voltage discharge across all four combustion chambers.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lexus HS250h Thermal Fatigue and Misfire Vulnerability\u003c\/h3\u003e\n\u003cp\u003eOver extended operating cycles, the factory pencil coils on the \u003cstrong\u003eANF10\u003c\/strong\u003e chassis suffer from thermal breakdown of the internal copper wire windings and internal epoxy insulation. Constant heat cycling from the Atkinson-cycle \u003cstrong\u003e2AZ-FXE\u003c\/strong\u003e engine degrades the boot elastomer, causing micro-cracking, voltage leak, and dielectric flashover. Simultaneously, factory spark plugs suffer center electrode erosion and widened gaps, which spikes electrical resistance. This increased secondary circuit resistance strains the driver circuits, triggering erratic combustion events, hesitation during hybrid-to-ICE transitions, and persistent DTC misfire codes such as P0300 through P0304.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis service kit pairs high-dielectric replacement coil-on-plug units with premium fine-wire iridium spark plugs to re-establish crisp flame kernel propagation. Each coil is engineered with high-temperature epoxy potted vacuum chambers to eliminate air voids and internal arc faulting. The paired iridium-tipped plugs feature laser-welded fine-wire center electrodes that resist thermal sintering, maintain gap integrity under high thermal load, and significantly lower required secondary voltage. Engineered to meet factory dwell times and primary resistance benchmarks, this kit prevents electrical leakage, eliminates cold-start shudder, and ensures smooth transitional torque delivery for the hybrid transaxle.\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;\"\u003e2010-2012 Lexus HS250h\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\u003e2AZ-FXE\u003c\/strong\u003e \/ \u003cstrong\u003eANF10\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;\"\u003e147 hp \/ 138 lb-ft (187 hp Total 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;\"\u003e\n\u003cstrong\u003eUF333\u003c\/strong\u003e (MPN: KIN115296TOP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2010 Lexus HS250h Base Sedan 4-Door 2.4L 2362CC l4 Full Hybrid EV-GAS (FHEV) DOHC\u003c\/li\u003e\n  \u003cli\u003e2010 Lexus HS250h Premium Sedan 4-Door 2.4L 2362CC l4 Full Hybrid EV-GAS (FHEV) DOHC\u003c\/li\u003e\n  \u003cli\u003e2011 Lexus HS250h Base Sedan 4-Door 2.4L 2362CC l4 Full Hybrid EV-GAS (FHEV) DOHC\u003c\/li\u003e\n  \u003cli\u003e2011 Lexus HS250h Premium Sedan 4-Door 2.4L 2362CC l4 Full Hybrid EV-GAS (FHEV) DOHC\u003c\/li\u003e\n  \u003cli\u003e2012 Lexus HS250h Base Sedan 4-Door 2.4L 2362CC l4 Full Hybrid EV-GAS (FHEV) DOHC\u003c\/li\u003e\n  \u003cli\u003e2012 Lexus HS250h Premium Sedan 4-Door 2.4L 2362CC l4 Full Hybrid EV-GAS (FHEV) DOHC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the ANF10 HS250h?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2010-2012 Lexus HS250h equipped with the \u003cstrong\u003e2AZ-FXE\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these spark plugs pre-gapped for the Atkinson-cycle hybrid powertrain?\u003c\/strong\u003e\u003cbr\u003e Yes, the fine-wire iridium plugs arrive pre-gapped to factory specifications; checking with a feeler gauge is recommended, but mechanical gapping adjustments should be avoided to protect the iridium tip.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lexus Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to satisfy stringent JDM hybrid powertrain tolerances, this direct-replacement assembly prevents harmonic powertrain vibration, eliminates unburned hydrocarbon exhaust loading, and restores smooth Atkinson-to-electric propulsion transitions without check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50604117328120,"sku":"DS-ESOGL4SRL","price":61.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-lexus-hs250h-2010-2012-2-4l-1.jpg?v=1790088701","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-lexus-hs250h-2010-2012-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}