{"product_id":"ignition-coil-and-iridium-spark-plugs-for-cadillac-srx-2004-2009-4-6l","title":"Ignition Coil and Iridium Spark Plugs for Cadillac SRX (2004-2009) 4.6L","description":"\u003ch2\u003eDirect-Fit High-Dielectric Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2004-2009 Cadillac SRX\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory coil packs and worn spark plugs with high-temp copper-wound assemblies and fine-wire iridium plugs to eliminate secondary misfires and restore complete combustion under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock SRX Northstar Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe 4.6L LH2 Northstar V8 operates in a tightly packed engine bay where sustained thermal cycling degrades factory coil-on-plug epoxy seals. Over time, internal primary and secondary copper windings develop micro-fractures, causing winding resistance drift and spark dissipation. Paired with eroded factory plug gaps, this voltage leakage results in hesitation under acceleration, erratic idle harmonics, reduced fuel economy, and potential catalytic converter damage from raw unburned hydrocarbons.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition service kit features eight coil-on-plug packs built with heavy-gauge internal copper windings and high-dielectric epoxy encapsulation to prevent voltage tracking and thermal breakdown. Direct-fit blade terminals ensure low-resistance electrical connections to the OEM harness. Paired with eight high-melting-point fine-wire iridium spark plugs, this kit maintains precise electrode gap tolerance under extreme cylinder pressures, delivering a crisp, high-energy spark across the entire RPM band.\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;\"\u003e2004-2009 Cadillac SRX\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;\"\u003e4.6L Northstar V8 (LH2) \/ GM Sigma 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;\"\u003e320 hp \/ 315 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;\"\u003eUF564, 12597745, 12602862, 12670154, D596A, C1556\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Cadillac SRX 4.6L V8 (LH2) Base RWD \/ AWD\u003c\/li\u003e\n  \u003cli\u003e2005 Cadillac SRX 4.6L V8 (LH2) Base RWD \/ AWD\u003c\/li\u003e\n  \u003cli\u003e2006 Cadillac SRX 4.6L V8 (LH2) Base RWD \/ AWD\u003c\/li\u003e\n  \u003cli\u003e2007 Cadillac SRX 4.6L V8 (LH2) Base RWD \/ AWD\u003c\/li\u003e\n  \u003cli\u003e2008 Cadillac SRX 4.6L V8 (LH2) Base RWD \/ AWD\u003c\/li\u003e\n  \u003cli\u003e2009 Cadillac SRX 4.6L V8 (LH2) Base RWD \/ AWD\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Cadillac Precision Benchmark\u003c\/h3\u003e\n\u003cp\u003eEngineered to deliver smooth, CEL-free operation, this direct-replacement ignition assembly meets stringent factory resistance parameters to maintain refined V8 throttle response, effortless passing power, and luxury cruising stability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50447751741688,"sku":"DS-EAGF2W3QK","price":169.95,"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-cadillac-srx-2004-2009-4-6l-1.jpg?v=1788623112","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-and-iridium-spark-plugs-for-cadillac-srx-2004-2009-4-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}