{"product_id":"ignition-coil-iridium-spark-plugs-for-ford-f-350-2008-2010-6-8l","title":"Ignition Coil + Iridium Spark Plugs for Ford F-350 (2008-2010) 6.8L","description":"\u003ch2\u003eDirect-Fit Heavy-Duty Ignition Kit for 2008-2010 Ford F-350\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Iridium Spark Plug Kit replaces worn factory coil packs and degraded spark plugs on the 2008-2010 Ford F-350 to eliminate misfires, stabilize idle, and restore combustion efficiency under heavy towing loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-350 Coil Degradation and High-Load Misfires\u003c\/h3\u003e\n\u003cp\u003eOn the heavy-duty \u003cstrong\u003eP356\u003c\/strong\u003e platform, the modular \u003cstrong\u003e6.8L Triton V10 3V\u003c\/strong\u003e operates in extreme thermal environments, especially under sustained towing and commercial duty cycles. Over time, persistent heat soak degrades the OEM coil epoxy encapsulation and internal primary\/secondary copper windings. This leads to internal shorting, dielectric puncture, and secondary voltage breakdown, manifesting as random cylinder misfires (DTCs P0300 through P0310) and harsh acceleration shudder. Compounding this, worn spark plugs develop eroded ground electrodes, widening the gap and placing excessive electrical resistance on the aging coil drivers.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 10-cylinder service kit pairs direct-replacement coil-on-plug (COP) assemblies with fine-wire iridium spark plugs to permanently resolve high-load spark blowout. The coils are engineered with high-dielectric epoxy potting, high-conductivity internal windings, and heat-stabilized silicone boots that resist dielectric breakdown past 35,000 volts. Matched with fine-wire iridium core center electrodes, this package significantly lowers the required ionization voltage, ensuring instant flame kernel development and maximum thermal efficiency. Direct cross-compatibility replaces failure-prone OEM units including \u003cstrong\u003e8L3Z12029A\u003c\/strong\u003e and \u003cstrong\u003eDG521\u003c\/strong\u003e with zero harness modification.\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; margin-bottom: 20px;\"\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;\"\u003e2008-2010 Ford F-350\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;\"\u003e6.8L Triton V10 (3V) \/ P356\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;\"\u003e362 hp \/ 457 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;\"\u003e8L3Z12029A, DG521, FD509, C1659, GN10233\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2008 Ford F-350 Super Duty 6.8L V10 (XL, XLT, Lariat, King Ranch)\u003c\/li\u003e\n  \u003cli\u003e2009 Ford F-350 Super Duty 6.8L V10 (XL, XLT, Lariat, King Ranch, Cabela's)\u003c\/li\u003e\n  \u003cli\u003e2010 Ford F-350 Super Duty 6.8L V10 (XL, XLT, Lariat, King Ranch, Cabela's)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the P356 F-350?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2008-2010 Ford F-350 equipped with the 6.8L Triton V10 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these coils accommodate the updated cylinder head spark plug design?\u003c\/strong\u003e\u003cbr\u003e Yes, these coils feature the correct boot configuration and contact spring length specifically engineered for late-revision 3-valve heads utilizing \u003cstrong\u003e8L3Z12029A\u003c\/strong\u003e style boots.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Super Duty Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for commercial hauling and maximum payload duty, your Super Duty demands consistent spark delivery across all ten combustion chambers. Installing this matched coil and iridium plug kit restores baseline towing power, ensures rapid cold starts, and prevents load-induced misfires under severe working conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50623708594424,"sku":"DS-EKLFPGE2M","price":216.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-ford-f-350-2008-2010-6-8l-1.jpg?v=1790298380","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-iridium-spark-plugs-for-ford-f-350-2008-2010-6-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}