{"product_id":"ignition-coil-spark-plugs-for-chevrolet-s-10-1995-2004-4-3l","title":"Ignition Coil + Spark Plugs for Chevrolet S-10 (1995-2004) 4.3L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Ignition Coil and Spark Plug Tune-Up Kit for 1995-2004 Chevrolet S-10 (GMT325)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Spark Plug Kit restores primary and secondary ignition circuit integrity on the 1995-2004 Chevrolet S-10 to eliminate cylinder misfires, rough idle, and spark blowout under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet S-10 Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eUnder-hood thermal cycles in the \u003cstrong\u003eGMT325\u003c\/strong\u003e chassis rapidly degrade the factory ignition system. The stock external ignition coil mounted adjacent to the intake manifold suffers from epoxy insulation breakdown and internal carbon tracking due to continuous thermal shock. Simultaneously, high-mileage spark plugs experience electrode erosion, widening the plug gap and placing excessive secondary voltage demands on the coil. In the \u003cstrong\u003eVortec 4300\u003c\/strong\u003e, this degradation causes erratic secondary spark delivery, hesitation under wide-open throttle, cold-start stumbling, and active \u003cstrong\u003eP0300\u003c\/strong\u003e multi-cylinder misfire trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement kit resolves factory electrical resistance issues with an OE-spec ignition coil engineered with high-dielectric epoxy potting, balanced primary and secondary copper windings, and a thermal-resistant thermoplastic housing. Matched with factory-gapped spark plugs featuring durable nickel-alloy ground electrodes and high-alumina ceramic insulators, this package guarantees crisp spark kernel development and stable flame-front propagation. It eliminates high-rpm misfires, handles aggressive duty cycles, and restores factory dwell-angle responsiveness without requiring wiring harness modifications.\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: solid font-size: min-width:\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;\"\u003e1995-2004 Chevrolet S-10\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;\"\u003e\n\u003cstrong\u003eVortec 4300 (L35 \/ LU3)\u003c\/strong\u003e \/ \u003cstrong\u003eGMT325\u003c\/strong\u003e\n\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;\"\u003e180–190 hp \/ 245–250 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;\"\u003e\n\u003cstrong\u003e10489421\u003c\/strong\u003e, \u003cstrong\u003e19207138\u003c\/strong\u003e, \u003cstrong\u003eD577\u003c\/strong\u003e, \u003cstrong\u003eDR49\u003c\/strong\u003e\n\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\u003e1995-2004 Chevrolet S-10 Base (4.3L V6)\u003c\/li\u003e\n  \u003cli\u003e1995-2004 Chevrolet S-10 LS (4.3L V6)\u003c\/li\u003e\n  \u003cli\u003e1995-2003 Chevrolet S-10 ZR2 (4.3L V6)\u003c\/li\u003e\n  \u003cli\u003e1995-1998 Chevrolet S-10 SS (4.3L V6)\u003c\/li\u003e\n  \u003cli\u003e1999-2004 Chevrolet S-10 Xtreme (4.3L V6)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT325 S-10?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct-fit replacement for all 1995-2004 Chevrolet S-10 trucks equipped with the 4.3L \u003cstrong\u003eVortec 4300\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWhy are 8 spark plugs included for a 6-cylinder application?\u003c\/h4\u003e\n\u003cp\u003eThe kit is bundled using standard multi-application packaging; install six plugs into your 4.3L V6 and retain the two extra plugs as spares.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Truck Standard\u003c\/h3\u003e\n\u003cp\u003eYour S-10 is built to pull payload, navigate work sites, and log high miles without mechanical hesitation. This direct-replacement ignition hardware delivers the reliable high-energy combustion and cold-start dependability demanded by working light trucks.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50626037874936,"sku":"DS-ENK6L6Z2E","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-chevrolet-s-10-1995-2004-4-3l-1.jpg?v=1790354235","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plugs-for-chevrolet-s-10-1995-2004-4-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}