{"product_id":"ignition-coil-spark-plugs-for-chevrolet-optra-2004-2007-2-0l-1","title":"Ignition Coil + Spark Plugs for Chevrolet Optra (2004-2007) 2.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Replacement Ignition Coil and Spark Plug Kit for 2004-2007 Chevrolet Optra 2.0L (J200 \/ U20SED)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and spark plug kit restores secondary ignition voltage and consistent flame-kernel propagation on the 2004-2007 Chevrolet Optra to eliminate engine misfires, rough idle, and unburned hydrocarbon emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Optra Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eOn the \u003cstrong\u003eGM J200\u003c\/strong\u003e platform equipped with the 2.0L \u003cstrong\u003eU20SED\u003c\/strong\u003e D-TEC engine, the factory coil pack is subjected to intense thermal cycling due to its close mounting proximity to the cylinder head. Over time, the internal epoxy resin degrades, leading to dielectric breakdown and micro-cracking across the winding insulation. Concurrently, factory copper-core spark plugs experience severe electrode erosion and gap enlargement past factory specifications. This widened gap increases the required secondary breakdown voltage, overworking the coil pack and triggering common P0300 through P0304 misfire codes, hesitations under load, and catalytic converter fuel washing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit ignition refresh kit pairs a heavy-duty single ignition coil pack with four matched spark plugs to restore optimal combustion chamber efficiency. The ignition coil module features high-temperature epoxy potting and heavy-gauge primary and secondary copper windings designed to resist internal arcing, thermal degradation, and heat soak. Paired with precision-gapped plugs engineered for superior thermal conductivity and anti-fouling resistance, this kit delivers consistent high-kV discharge under load. Replacing both coils and plugs simultaneously guarantees uniform spark duration, crisp throttle response, and restores stoichiometric combustion balance across all four cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\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;\"\u003e2004-2007 Chevrolet Optra\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;\"\u003e2.0L U20SED DOHC \/ J200\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;\"\u003e119 hp \/ 126 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;\"\u003eUF356, 96350585, 25184291, 1104038, 7092\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Chevrolet Optra Base, LS 2.0L L4 Gas (J200)\u003c\/li\u003e\n  \u003cli\u003e2005 Chevrolet Optra Base, LS 2.0L L4 Gas (J200)\u003c\/li\u003e\n  \u003cli\u003e2006 Chevrolet Optra Base, LS 2.0L L4 Gas (J200)\u003c\/li\u003e\n  \u003cli\u003e2007 Chevrolet Optra Base, LS 2.0L L4 Gas (J200)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the J200 Optra?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2007 Chevrolet Optra equipped with the \u003cstrong\u003eU20SED\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre spark plug wires included with this ignition kit?\u003c\/strong\u003e\u003cbr\u003e No, secondary spark plug lead wires are not included and should be inspected for high resistance prior to reinstallation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered for high commuter mileage and consistent cold-start operation, this ignition assembly delivers precise electrical continuity without triggering false-positive check engine lights or misfire counts.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50625810137336,"sku":"DS-EHJ6IYORE","price":78.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-chevrolet-optra-2004-2007-2-0l-1_b8ce5c5e-5b12-4205-924a-472127b7539a.jpg?v=1790351492","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-chevrolet-optra-2004-2007-2-0l-1","provider":"Performance Chip Tuning","version":"1.0","type":"link"}