{"product_id":"ignition-coil-and-iridium-spark-plugs-for-nissan-altima-2019-2021-2-5l","title":"Ignition Coil and Iridium Spark Plugs for Nissan Altima (2019-2021) 2.5L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2019-2021 Nissan Altima\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Iridium Spark Plug Kit restores reliable high-voltage spark delivery on the 2019-2021 Nissan Altima to eliminate under-load misfires and stabilize combustion efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan Altima Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory coil-on-plug assemblies in the \u003cstrong\u003eL34\u003c\/strong\u003e Altima are vulnerable to dielectric breakdown and thermal fatigue caused by repeated heat cycling in the cylinder head wells. Over time, internal winding insulation degrades, causing secondary voltage leakages, increased internal resistance, and carbon tracking along the rubber boots. When coupled with worn factory plugs, the high cylinder pressures of the direct-injected \u003cstrong\u003ePR25DD\u003c\/strong\u003e engine can easily cause spark blowout, triggering stumbling idle, delayed throttle response, and diagnostic codes P0300 through P0304.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement ignition kit resolves coil arcing and voltage drops by utilizing reinforced pencil coils constructed with high-dielectric epoxy potting and heat-resistant silicone boots. Internally, precision-wound copper windings deliver consistent secondary energy to fire the included fine-wire iridium spark plugs. The laser-welded iridium center electrodes resist spark erosion and require lower striking voltage under lean or high-load conditions. Designed to exceed OEM interchanges \u003cstrong\u003e224485RL0A\u003c\/strong\u003e and \u003cstrong\u003eUF861\u003c\/strong\u003e, this kit ensures stable flame kernel propagation throughout the entire rev range.\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;\"\u003e2019-2021 Nissan Altima\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\u003ePR25DD\u003c\/strong\u003e \/ \u003cstrong\u003eL34\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;\"\u003e188 hp \/ 180 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\u003e224485RL0A\u003c\/strong\u003e, \u003cstrong\u003eUF861\u003c\/strong\u003e, KIN135237TOP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2019-2021 Nissan Altima S 2.5L FWD \/ AWD (PR25DD)\u003c\/li\u003e\n  \u003cli\u003e2019-2021 Nissan Altima SV 2.5L FWD \/ AWD (PR25DD)\u003c\/li\u003e\n  \u003cli\u003e2019-2021 Nissan Altima SR 2.5L FWD \/ AWD (PR25DD)\u003c\/li\u003e\n  \u003cli\u003e2019-2021 Nissan Altima SL 2.5L FWD \/ AWD (PR25DD)\u003c\/li\u003e\n  \u003cli\u003e2019-2021 Nissan Altima Platinum 2.5L FWD \/ AWD (PR25DD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the L34 Altima?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2019-2021 Nissan Altima equipped with the \u003cstrong\u003ePR25DD\u003c\/strong\u003e 2.5L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the included iridium spark plugs pre-gapped for this application?\u003c\/strong\u003e\u003cbr\u003e Yes, they come pre-gapped to OEM factory specifications for plug-and-play installation without requiring manual adjustment.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan Sedan Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the high compression and thermal demands of Nissan direct-injection powerplants, this matched coil and plug service kit ensures crisp throttle response, clean combustion, and reliable cold-start behavior without check-engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50593938342136,"sku":"DS-EZI75N556","price":88.95,"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-nissan-altima-2019-2021-2-5l-1.jpg?v=1790054254","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-nissan-altima-2019-2021-2-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}