{"product_id":"ignition-coil-and-iridium-spark-plugs-for-buick-rendezvous-2004-2006-3-6l","title":"Ignition Coil and Iridium Spark Plugs for Buick Rendezvous (2004-2006) 3.6L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2004-2006 Buick Rendezvous\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores factory secondary ignition output and combustion stability across all cylinders by replacing aged coils and worn plugs with matched, high-dielectric components.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Rendezvous Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eThe transverse mounting of the 3.6L LY7 engine in the GM U-body chassis exposes the ignition coils—particularly the rear bank—to persistent thermal soak from the exhaust manifold. Over prolonged heat cycling, OEM epoxy potting develops micro-fractures, degrading the internal copper winding insulation. This thermal wear leads to dielectric breakdown, secondary voltage drop, intermittent misfires under load (DTC P0300–P0306), and unburnt fuel fouling catalytic converters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 6-cylinder ignition service kit features coil-on-plug assemblies engineered with high-conductivity internal copper windings and heavy-duty dielectric epoxy insulation to resist thermal cracking and high-voltage arcing. Matched with fine-wire iridium spark plugs, the system lowers the required ionization voltage, promotes stable flame front propagation, and resists electrode erosion. Direct-fit blade connectors ensure weather-tight electrical integrity.\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;\"\u003e2004-2006 Buick Rendezvous\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 U-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;\"\u003e242 hp \/ 247 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;\"\u003eUF375, 12629037, 12613057, 12583514, C-747, D501C, D510A, E405, 5C1551\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Buick Rendezvous 3.6L V6 (CX, CXL, Ultra)\u003c\/li\u003e\n  \u003cli\u003e2005 Buick Rendezvous 3.6L V6 (CX, CXL, Ultra)\u003c\/li\u003e\n  \u003cli\u003e2006 Buick Rendezvous 3.6L V6 (CX, CXL)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand demanding thermal environments, this ignition kit eliminates misfires, optimizes throttle response, and maintains dependable cold-start combustion for consistent daily driving reliability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50448294707448,"sku":"DS-EAXRVJMXP","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-rendezvous-2004-2006-3-6l-1.jpg?v=1788638964","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-buick-rendezvous-2004-2006-3-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}