{"product_id":"ignition-coil-and-iridium-spark-plugs-for-mazda-cx-9-2007-2015-3-5l-3-7l","title":"Ignition Coil and Iridium Spark Plugs for Mazda CX-9 (2007-2015) 3.5L 3.7L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2007-2015 Mazda CX-9\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores factory ignition energy and combustion efficiency across all six cylinders by replacing aged coils and worn plugs with high-dielectric coil-on-plug packs and fine-wire iridium spark plugs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock CX-9 Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe Ford-derived MZI V6 engine platform experiences thermal stress in transverse engine configurations, especially on the rear firewall cylinder bank. Over extended thermal cycling, factory coil epoxy degrades, leading to internal dielectric breakdown, micro-arcing, and intermittent primary winding resistance drift. Combined with premature electrode erosion on standard plugs, this causes low-RPM hesitation, erratic idle quality, cold-start misfires (P0300-P0306 DTCs), and unburned fuel dumping into catalytic converters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement kit uses high-grade copper internal windings shielded in thermal-resistant epoxy potting to eliminate internal shorting and voltage leakage under peak cylinder pressures. Paired with laser-welded iridium-tipped spark plugs, the assembly delivers a focused, high-energy spark kernel with reduced required firing voltage. Reinforced silicone boots and factory-spec blade terminals resist dielectric punch-through, ensuring sustained combustion stability under sustained load.\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;\"\u003e2007-2015 Mazda CX-9\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;\"\u003e3.5L \/ 3.7L MZI Cyclone V6 \/ TB Chassis\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;\"\u003e263-273 hp \/ 249-270 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;\"\u003eUF553, DG520, CY0118100B, CY01-18-100A, 7T4Z12029E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007 Mazda CX-9 3.5L V6 (Sport, Touring, Grand Touring)\u003c\/li\u003e\n  \u003cli\u003e2008-2015 Mazda CX-9 3.7L V6 (Sport, Touring, Grand Touring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Mazda Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to eliminate check engine lights and maintain peak fuel atomization, this kit preserves the smooth power delivery, throttle response, and long-term drivetrain reliability expected from the TB-platform CX-9.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50447739257080,"sku":"DS-ETY78KCOT","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-mazda-cx-9-2007-2015-3-5l-3-7l-1.jpg?v=1788622678","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-mazda-cx-9-2007-2015-3-5l-3-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}