{"title":"Ignition Coils for Buick LaCrosse","description":"\u003ch2\u003eRestore Smooth Power with Ignition Coils for Buick LaCrosse\u003c\/h2\u003e\n\u003cp\u003eA degraded ignition coil or worn spark plug can cause hesitation under load, poor fuel mileage, rough idling, and flashing check engine lights. Our selection of \u003cstrong\u003eignition coils for Buick LaCrosse\u003c\/strong\u003e provides direct-fit replacement components engineered to deliver reliable secondary voltage to your combustion chambers. Whether you need an individual replacement or a matched set with iridium spark plugs, we offer targeted solutions for select four-cylinder, V6, and V8 models. Looking for options across other models? Browse our complete catalog of \u003ca href=\"\/collections\/buick-ignition\"\u003eignition parts for Buick\u003c\/a\u003e or pair your service with a \u003ca href=\"\/collections\/buick-performance-tune\"\u003eperformance tune for Buick\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSupported Buick LaCrosse Years and Engine Applications\u003c\/h3\u003e\n\u003cp\u003eOur catalog covers select applications across multiple production years and factory powertrains:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.4L \u0026amp; 2.5L 4-Cylinder:\u003c\/strong\u003e Coil and iridium plug service kits for 2010–2016 (2.4L) and 2018–2019 (2.5L) engines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3.0L, 3.6L \u0026amp; 3.8L V6:\u003c\/strong\u003e Complete multi-packs supporting 2005–2008 (3.6L), 2005–2009 (3.8L Series III), 2010–2016 (3.0L \/ 3.6L), and 2017–2019 (3.6L) configurations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5.3L V8:\u003c\/strong\u003e Round-style performance replacement coils and spark plug kits for 2008–2009 V8 models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch3\u003eWill new ignition coils fix misfire codes like P0300 on my Buick LaCrosse?\u003c\/h3\u003e\n\u003cp\u003eYes, if the fault stems from ignition breakdown. A weak or arcing coil cannot consistently ignite the air-fuel charge, triggering general P0300 codes or cylinder-specific misfire codes (such as P0301 through P0306). Replacing deteriorated coils and plugs restores steady spark delivery.\u003c\/p\u003e\n\n\u003ch3\u003eShould I replace one faulty coil or the entire set?\u003c\/h3\u003e\n\u003cp\u003eIf your Buick LaCrosse has over 75,000 miles, replacing all ignition coils simultaneously is best practice. All coils operate under the same thermal conditions; when one coil breaks down from heat and electrical wear, the remaining factory units are usually near the end of their operating life.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the benefit of a combined coil and iridium spark plug kit?\u003c\/h3\u003e\n\u003cp\u003eInstalling matched coils and iridium spark plugs ensures proper resistance, uniform spark gap, and balanced cylinder output. Replacing both wear items together prevents an aged plug from overworking a new coil, saving you diagnostic time and labor.\u003c\/p\u003e","products":[{"product_id":"high-performance-ignition-coil-for-buick-lacrosse-2008-2009-5-3l","title":"High Performance Ignition Coil for Buick LaCrosse (2008-2009) 5.3L","description":"\u003ch2\u003eHigh-Performance Ignition Coils for 2008-2009 Buick LaCrosse (LS4 \/ W-Body)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDesigned to restore optimal spark energy and eliminate under-load misfires:\u003c\/strong\u003e This complete 8-pack of UF414 upgraded ignition coils provides a direct-fit replacement that exceeds factory specifications for the transverse-mounted 5.3L V8, ensuring consistent combustion and stable idle.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock W-Body Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eThe factory ignition coils on the 5.3L LS4 V8 are notorious for degrading over time due to severe heat cycling within the cramped W-Body engine bay. Because the rear bank of cylinders sits tightly against the firewall, ambient underhood temperatures soar, leading to premature breakdown of the internal epoxy and primary windings. When these stock coils begin to fail, the engine experiences weak spark delivery. This translates to noticeable hesitation under acceleration, rough idling, decreased fuel economy, and dreaded P0300-series misfire codes. The OEM components simply lack the thermal resistance required for sustained high-temperature operation over high mileage.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis UF414 high-performance coil pack set is engineered to resolve the thermal degradation issues inherent to the factory setup. Featuring high-grade copper wire for both primary and secondary windings, these coils maximize voltage output to the spark plugs for a more complete burn and improved throttle response. The housings are constructed from a dense, heat-resistant dielectric polymer, reinforced with specialized internal epoxy that prevents voltage leaks and withstands extreme engine bay temperatures. By delivering a hotter, more consistent spark, these upgraded coils prevent spark blowout under heavy load, stabilize idle characteristics, and fully restore the 300-horsepower potential of the LS4 engine.\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;\"\u003e2008-2009 Buick LaCrosse\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;\"\u003e5.3L LS4 V8 \/ W-Body\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;\"\u003e300 hp \/ 323 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;\"\u003eUF414\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2008 Buick LaCrosse Super 5.3L V8\u003c\/li\u003e\n    \u003cli\u003e2009 Buick LaCrosse Super 5.3L V8\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Buick Muscle Caliber\u003c\/h3\u003e\n  \u003cp\u003eFor V8-powered GM sedans, maintaining precise ignition timing and powerful spark delivery is non-negotiable. This complete ignition coil upgrade ensures your LaCrosse Super retains its factory muscle, delivering smooth, uninterrupted power delivery and restoring the reliable performance demanded by the LS4 platform.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234173006072,"sku":"DS-EDM3S73FJ","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-buick-lacrosse-2008-2009-5-3l-1.jpg?v=1776099081"},{"product_id":"ignition-coil-iridium-spark-plugs-for-buick-allure-lacrosse-2010-2016-3-0l-3-6l-v6","title":"Ignition Coil \u0026 Iridium Spark Plugs for Buick Allure LaCrosse (2010-2016) 3.0L 3.6L V6","description":"\u003ch2\u003eDirect Replacement Ignition Coil \u0026amp; Iridium Spark Plugs for 2010-2016 Buick LaCrosse (HFV6 \/ Epsilon II)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eA complete direct replacement ignition service kit designed to restore optimal combustion and eliminate misfire conditions in the 3.0L and 3.6L High Feature V6 engines.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock LaCrosse Ignition Degradation\u003c\/h3\u003e\n  \u003cp\u003eOver time, the High Feature V6 engines (LFX\/LLT\/LF1) are notorious for accelerated thermal stress on the factory ignition coils due to their proximity to the cylinder heads and trapped under-hood heat. This continuous heat soak leads to micro-cracking in the epoxy resin of the coil housing, causing voltage leaks, erratic idle, and partial-throttle misfires. Additionally, standard or aging spark plugs degrade under high-compression conditions, widening the spark gap. This directly stresses the already fatigued coils by requiring higher voltage to bridge the gap, ultimately resulting in poor fuel efficiency, delayed throttle response, and pending P0300-series diagnostic trouble codes.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis comprehensive ignition overhaul kit addresses the thermal fatigue issues of the Epsilon II chassis by utilizing upgraded construction materials. The replacement ignition coils feature high-temp epoxy resin and advanced copper wire windings to optimize the primary-to-secondary voltage transformation, ensuring consistent spark delivery even under extreme engine bay temperatures. Coupled with precision-gapped Iridium spark plugs, this kit provides a highly focused, fine-wire center electrode that requires less voltage to bridge the spark gap. The ultra-hard Iridium tip inherently resists erosion from spark degradation and chemical corrosion within the combustion chamber, significantly improving flame kernel growth, stabilizing idle parameters, and restoring lost power and fuel economy over an extended service interval.\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;\"\u003e2010-2016 Buick LaCrosse \/ Allure\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;\"\u003eHFV6 (LFX \/ LLT \/ LF1) \/ Epsilon II\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;\"\u003e303 hp \/ 264 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;\"\u003e3340078J00, 3340078J01, 3340078J02, 3340078J03, CLS1226, IC649\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2010 Buick Allure 3.0L V6\u003c\/li\u003e\n    \u003cli\u003e2010 Buick Allure 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2010 Buick LaCrosse 3.0L V6\u003c\/li\u003e\n    \u003cli\u003e2010 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2011 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2012 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2013 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2014 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2015 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2016 Buick LaCrosse 3.6L V6\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Buick Caliber\u003c\/h3\u003e\n  \u003cp\u003eMaintaining proper ignition health ensures smooth power delivery and prevents unburnt fuel from damaging the catalytic converters, maintaining the refined driveability and silent idle expected from this modern luxury sedan chassis.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48303130444024,"sku":"DS-EQ21SQ7KE","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-buick-allure-lacrosse-2010-2016-3-0l-3-6l-v6-1.jpg?v=1777576727"},{"product_id":"ignition-coil-spark-plug-for-buick-allure-lacrosse-2008-2009-rainier-2005-2007-5-3l-v8-round-style","title":"Ignition Coil \u0026 Spark Plug for Buick Allure LaCrosse (2008-2009) Rainier (2005-2007) 5.3L V8 (Round Style)","description":"\u003ch2\u003eHigh-Energy Ignition Coil \u0026amp; Spark Plug Set for 2008-2009 Buick Allure, LaCrosse\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect plug-and-play ignition upgrade:\u003c\/strong\u003e Replaces the aging stock coils, plugs, and wires on your 5.3L V8 to eliminate misfires and deliver a stronger, more consistent spark.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock W-Body Ignition Shortcoming\u003c\/h3\u003e\n\u003cp\u003eOver time, the factory ignition coils on the transverse-mounted 5.3L LS4 V8 suffer from severe heat soak. The confined engine bay of the W-body chassis traps thermal energy, causing the OEM coil's internal epoxy to degrade. This thermal breakdown increases primary resistance, leading to weakened spark output, rough idling, hesitation under heavy engine load, and eventual coil failure. Furthermore, the factory plug wires gradually lose their dielectric insulation properties, causing parasitic voltage leaks and contributing to annoying misfire codes that rob the engine of power.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete ignition overhaul kit replaces the restrictive and degradation-prone OEM components with high-performance alternatives. The UF414 round-style ignition coils are manufactured with premium-grade copper windings and high-temperature epoxy internals, producing an impressive 32,000 volts—a 20% increase in discharge energy over standard factory specifications. This stronger spark ensures a more complete combustion cycle, optimizing fuel efficiency and throttle response. Paired with exact-fit spark plugs and heavy-duty silicone-insulated plug wires, this kit restores reliable ignition timing, prevents voltage bleed, and is built to stand up to the extreme ambient temperatures of the LS4 engine bay.\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;\"\u003e2008-2009 Buick Allure, LaCrosse\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;\"\u003eLS4 5.3L V8 \/ W-Body\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;\"\u003e300 hp \/ 323 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;\"\u003eUF414, D514A, 748UU, 41962\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBuick Allure \/ LaCrosse 5.3L V8 (2008-2009)\u003c\/li\u003e\n  \u003cli\u003eBuick Rainier (2005-2007)\u003c\/li\u003e\n  \u003cli\u003eCadillac Escalade\u003c\/li\u003e\n  \u003cli\u003eChevrolet Avalanche\u003c\/li\u003e\n  \u003cli\u003eChevrolet Silverado\u003c\/li\u003e\n  \u003cli\u003eChevrolet Suburban\u003c\/li\u003e\n  \u003cli\u003eChevrolet Express\u003c\/li\u003e\n  \u003cli\u003eChevrolet Tahoe\u003c\/li\u003e\n  \u003cli\u003eChevrolet Trailblazer\u003c\/li\u003e\n  \u003cli\u003eGMC Savana\u003c\/li\u003e\n  \u003cli\u003eGMC Yukon\u003c\/li\u003e\n  \u003cli\u003eHummer H3\u003c\/li\u003e\n  \u003cli\u003e\u003cem\u003eNote: Only applicable to round style coils (UF414 \/ D514A). Not suitable for square body coils (UF413 \/ D510C). Please verify original coil shape before ordering.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Performance Standard\u003c\/h3\u003e\n\u003cp\u003eWhether you're cruising the highway or demanding maximum passing power from the 5.3L LS4, reliable ignition is non-negotiable. This kit ensures your W-body Buick delivers the smooth, torquey performance it was engineered for, eliminating frustrating misfires and providing a consistent, powerful spark under all load conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":49710905065720,"sku":"DS-EKAMPDLB5","price":179.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plug-for-buick-allure-lacrosse-2008-2009-rainier-2005-2007-5-3l-v8-round-style-1.jpg?v=1782795847"},{"product_id":"ignition-coil-spark-plugs-for-buick-lacrosse-2005-2009-3-8l-v6","title":"Ignition Coil \u0026 Spark Plugs for Buick LaCrosse (2005-2009) 3.8L V6","description":"\u003ch2\u003eHigh-Voltage Ignition Coil \u0026amp; Spark Plugs for 2005-2009 Buick LaCrosse\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces failing factory ignition coils and fouled spark plugs to restore proper combustion, eliminate misfires, and stabilize idle on the 3.8L V6.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock LaCrosse Weakness\u003c\/h3\u003e\n\u003cp\u003eThe GM 3800 Series III V6 is incredibly robust, but the factory ignition coils suffer from thermal breakdown due to prolonged under-hood temperatures. Over time, the OEM epoxy potting compound degrades, leading to micro-cracks in the coil housing. This allows moisture intrusion and electrical arcing, which manifests as a dead miss under load, sluggish acceleration, or a flashing check engine light (P0300-series codes). Paired with worn factory plugs, the weakened spark struggles to bridge the gap, resulting in unburnt fuel washing the cylinder walls and reducing the overall lifespan of your catalytic converter.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete ignition overhaul includes three high-output replacement coils and six precision-gapped NGK spark plugs engineered specifically for the L26 engine. The upgraded coils feature superior thermal epoxy and enhanced copper wire windings, significantly increasing dielectric strength to resist heat soak and high-voltage leaks. Manufactured under strict ISO\/TS16949 certification, these coils deliver a concentrated, high-energy spark that ensures complete, efficient combustion. The included NGK spark plugs utilize an advanced electrode design that prevents carbon fouling, maximizes spark efficiency, and restores the smooth, balanced power delivery the W-body chassis requires.\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 Buick LaCrosse\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;\"\u003e3800 Series III (L26) V6 \/ GM W-Body\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;\"\u003e200 hp \/ 230 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;\"\u003eC849SPEC, 10467067, D555, D576, EBC1518\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005 Buick LaCrosse 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2006 Buick LaCrosse 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2007 Buick LaCrosse 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2008 Buick LaCrosse 3.8L V6\u003c\/li\u003e\n  \u003cli\u003e2009 Buick LaCrosse 3.8L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to match GM's stringent daily driving demands, this ignition kit ensures reliable cold starts and consistent power delivery, keeping your W-body running smoothly without triggering pesky misfire codes or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50066445205752,"sku":"DS-EO8GZJMAO","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-buick-lacrosse-2005-2009-3-8l-v6-1.jpg?v=1785284981"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-buick-lacrosse-2010-2016-2-4l","title":"Ignition Coil and Iridium Spark Plugs for Buick LaCrosse (2010-2016) 2.4L","description":"\u003ch2\u003eOEM-Grade Ignition Coil and Iridium Spark Plug Kit for 2010-2016 Buick LaCrosse\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect-fit replacement ignition tune-up kit:\u003c\/strong\u003e Restores factory secondary voltage output, eliminates cylinder misfires, and stabilizes engine idle across all four cylinders on the 2.4L Ecotec engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock LaCrosse Ignition Breakdown and Heat Fatigue\u003c\/h3\u003e\n\u003cp\u003eContinuous thermal cycling within the GM direct-injection engine bay deteriorates factory coil-on-plug epoxy insulation and breaks down internal copper windings over time. This thermal fatigue creates internal resistance surges, leading to weak spark energy, unburned fuel, reduced throttle response, carbon accumulation on piston crowns, and persistent P0300 through P0304 misfire diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis ignition kit utilizes high-conductivity oxygen-free copper internal windings housed inside high-dielectric epoxy casings to isolate voltage leaks and prevent high-temperature arcing. Engineered with exact OE blade terminals and molded boots, the coils pair seamlessly with laser-welded iridium spark plugs. The fine-wire iridium center electrodes lower required ignition voltage, reducing overall stress on the primary ignition circuit while generating a concentrated, stable flame kernel for complete combustion.\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;\"\u003e2010-2016 Buick LaCrosse\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;\"\u003e2.4L Ecotec (LAF \/ LEA \/ LUK) \/ Epsilon II (GMX353)\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;\"\u003e182 hp \/ 172 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;\"\u003eUF491, 12578224, 12638824, 12578244, C1552, D517A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2010-2016 Buick LaCrosse 2.4L L4 Gas \/ Mild Hybrid (Base, Convenience, Leather, Premium, eAssist)\u003c\/li\u003e\n  \u003cli\u003eInterchange Part Numbers: UF491, 12578224, 12638824, 12578244, C1552, D517A\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Standard of Precision\u003c\/h3\u003e\n\u003cp\u003eEngineered to match factory ECM dwell time calibrations, this kit ensures smooth power delivery, immediate cold-start ignition, and strict compliance against CEL triggers for reliable daily driving.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50447762194680,"sku":"DS-EZH73C2S3","price":109.95,"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-buick-lacrosse-2010-2016-2-4l-1.jpg?v=1788623672"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-buick-lacrosse-2018-2019-2-5l","title":"Ignition Coil and Iridium Spark Plugs for Buick LaCrosse (2018-2019) 2.5L","description":"\u003ch2\u003eDirect-Fit Ignition Service Kit for 2018-2019 Buick LaCrosse\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores factory secondary ignition output and precise combustion timing on high-mileage Ecotec powertrains showing misfire codes or thermal breakdown.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock LaCrosse Coil \u0026amp; Plug Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 2.5L LHN Ecotec engine operates under tight engine bay packaging that traps radiant engine heat around the cylinder head. Over extended heat cycles, factory coil-on-plug boots develop micro-fissures and primary winding insulation degrades, inducing secondary voltage tracking and unmetered spark dropouts. Concurrently, aged factory plugs suffer from electrode erosion and widened gaps, which spikes the secondary voltage demand on the ignition coils and triggers sluggish throttle response, erratic idle, and P0300-P0304 fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service pack replaces deteriorated components with heavy-duty coil-on-plug assemblies and matched iridium spark plugs. Each ignition coil features high-grade electrolytic copper primary and secondary windings wrapped around an engineered magnetic core, sealed with high-dielectric epoxy to resist high-temperature breakdown. Thermally stable silicone boots isolate high voltage to prevent flashover, while the fine-wire iridium spark plugs lower firing voltage requirements to ensure dependable, efficient arc generation across the entire operating RPM 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;\"\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;\"\u003e2018-2019 Buick LaCrosse 2.5L L4\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;\"\u003e2.5L LHN Ecotec \/ GM E2XX\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;\"\u003e194 hp \/ 187 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eInterchange Part Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF680, UF-680, C869, C1827, 5C1884\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2018 Buick LaCrosse Base, Preferred, Essence (2.5L L4 - Mild Hybrid LHN)\u003c\/li\u003e\n  \u003cli\u003e2019 Buick LaCrosse Base, Preferred, Essence (2.5L L4 - Mild Hybrid LHN)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Reliability Caliber\u003c\/h3\u003e\n\u003cp\u003ePrecision calibrated to OE dwell parameters, this kit restores smooth, vibration-free idling and crisp transient throttle response while guaranteeing complete, error-free integration with onboard GM ECM control logic.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448497639672,"sku":"DS-ENMSSESZG","price":100.95,"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-buick-lacrosse-2018-2019-2-5l-1.jpg?v=1788647528"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-buick-lacrosse-2017-2019-3-6l","title":"Ignition Coil and Iridium Spark Plugs for Buick LaCrosse (2017-2019) 3.6L","description":"\u003ch2\u003eOEM-Grade Direct-Fit Ignition Kit for 2017-2019 Buick LaCrosse\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores factory combustion efficiency and eliminates cylinder misfires across the entire RPM band for the direct-injected 3.6L V6 engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock LaCrosse High-Heat Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 3.6L LGX direct-injection architecture operates under high thermal loads and an 11.5:1 compression ratio. Over time, thermal cycling within the tight transverse engine bay degrades the factory coil-on-plug epoxy potting and primary copper windings. This internal insulation breakdown leads to high-voltage leakage, carbon tracking, and intermittent misfires, especially during high-load acceleration and Active Fuel Management transitions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition service kit features six high-output coil assemblies wound with premium electrolytic copper wiring and encapsulated in high-dielectric epoxy to resist thermal cracking. Paired with laser-welded fine-wire iridium spark plugs, this kit provides a concentrated spark kernel, reduces ionization voltage requirements, and maintains consistent arc stability under high cylinder pressures.\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;\"\u003e2017-2019 Buick LaCrosse\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;\"\u003e3.6L LGX V6 \/ E2XX Platform\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;\"\u003e310 hp \/ 282 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;\"\u003eUF830, UF-830, 12666339, C-962, C2035, 5C2094, GN10889\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2017 Buick LaCrosse 3.6L V6 (Base, Essence, Preferred, Premium)\u003c\/li\u003e\n  \u003cli\u003e2018 Buick LaCrosse 3.6L V6 (Essence, Preferred, Premium, Avenir)\u003c\/li\u003e\n  \u003cli\u003e2019 Buick LaCrosse 3.6L V6 (Essence, Premium, Avenir, Sport Touring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Refinement Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet OE calibration tolerances, this direct-fit ignition upgrade ensures clean idle characteristics, instantaneous throttle response, and smooth powertrain NVH without triggering check engine lights or diagnostic trouble codes.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448508879096,"sku":"DS-EDFHHMMHU","price":129.95,"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-buick-lacrosse-2017-2019-3-6l-1.jpg?v=1788648367"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-buick-lacrosse-2005-2008-3-6l","title":"Ignition Coil and Iridium Spark Plugs for Buick LaCrosse (2005-2008) 3.6L","description":"\u003ch2\u003eDirect-Fit High-Reliability Ignition Coil and Iridium Spark Plug Kit for 2005-2008 Buick LaCrosse 3.6L\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Complete 6-cylinder ignition service kit engineered to restore factory spark energy, eliminate cylinder misfires, and stabilize idle quality on the LY7 V6 engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock LaCrosse Secondary Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eFactory coil packs on the GM 3.6L LY7 engine operate in a tightly packaged, high-heat transverse cylinder head environment. Over prolonged heat cycles, OEM epoxy insulation degrades, causing internal winding shorts and dielectric punch-through along the plug boot. Combined with worn factory spark plug gaps that increase secondary voltage demand, this degradation triggers P0300-P0306 misfire codes, erratic idle, sluggish throttle response, and unburned fuel contamination in the catalytic converters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis overhaul kit pairs six reinforced coil-on-plug units with fine-wire iridium spark plugs. The ignition coils feature premium internal copper windings and high-dielectric silicone boots that resist thermal breakdown and prevent voltage flashover. Matched with high-melting-point iridium core electrodes, this kit maintains a stable spark gap under heavy engine loads, ensuring complete flame front propagation and crisp combustion dynamics.\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;\"\u003e2005-2008 Buick LaCrosse 3.6L\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;\"\u003e3.6L High Feature V6 (LY7) \/ GM W-Body\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;\"\u003e240 hp \/ 225 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number \/ Interchange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF375, UF-375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005 Buick LaCrosse CXS (3.6L V6 LY7)\u003c\/li\u003e\n  \u003cli\u003e2006 Buick LaCrosse CXS (3.6L V6 LY7)\u003c\/li\u003e\n  \u003cli\u003e2007 Buick LaCrosse CXS (3.6L V6 LY7)\u003c\/li\u003e\n  \u003cli\u003e2008 Buick LaCrosse CXS (3.6L V6 LY7)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Smooth-Drivability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet exact GM diagnostic parameters, this ignition kit delivers instant cold-crank ignition, seamless acceleration, and vibration-free cruising without triggering false-positive ECU trouble codes or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50452262781176,"sku":"DS-ECXZP0QRU","price":105.95,"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-buick-lacrosse-2005-2008-3-6l-1.jpg?v=1788721418"}],"url":"https:\/\/performancechiptuning.com\/collections\/buick-lacrosse-ignition.oembed","provider":"Performance Chip Tuning","version":"1.0","type":"link"}