{"product_id":"ignition-coil-spark-plugs-for-ford-f-250-1999-2004-6-8l","title":"Ignition Coil + Spark Plugs for Ford F-250 (1999-2004) 6.8L","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 1999-2004 Ford F-250 (P131)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Spark Plug Kit replaces degraded factory coil-on-plug units and worn plugs on the 1999-2004 Ford F-250 to eliminate secondary ignition misfires, restore lost combustion pressure, and smooth out rough idle under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-250 Ignition Coil Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory 2-valve \u003cstrong\u003e6.8L Triton V10\u003c\/strong\u003e engine subjects its coil-on-plug (COP) assemblies to intense thermal cycling due to deep cylinder head recesses. Over time, OEM silicone boots undergo dielectric breakdown, leading to voltage arc-through directly to the cylinder head rather than the plug gap. Additionally, internal primary and secondary copper windings degrade from engine heat soak, increasing electrical resistance. Under heavy towing or wide-open throttle, this breakdown causes noticeable spark blowout, hesitation, and cylinder misfire codes (P0300–P0310).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis kit delivers a complete secondary ignition refresh engineered for the \u003cstrong\u003eP131\u003c\/strong\u003e chassis platform. The ignition coils utilize high-grade magnetic silicon steel cores and high-temperature epoxy encapsulation to maximize secondary voltage output up to 35,000 volts without dielectric puncture. High-temp silicone boots with internal stainless steel springs resist thermal hardening and prevent moisture intrusion into the plug well. Paired with genuine NGK spark plugs, this setup ensures consistent flame kernel development, stable spark duration, and complete combustion across all ten cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10 Ignition Coils\u003c\/li\u003e\n  \u003cli\u003e10 NGK Spark Plugs\u003c\/li\u003e\n\u003c\/ul\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;\"\u003e1999-2004 Ford F-250\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\u003e6.8L Triton V10\u003c\/strong\u003e \/ \u003cstrong\u003eP131\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;\"\u003e310 hp \/ 425 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;\"\u003eFD503, FD503F, F7TU-12A366AB, F7TU-2A366BA, C566, F7TU12A366AB, GN10164, 1L2U12029AA, F7TZ-1029CC, 1L2U12A366, 250534733, SKIC001, C500, CFD503, 5C1412, COP9, 0221504704, 44688, 6736000, 8242, 1L2Z 12029-AA, 3W7Z 12029-AA, F7TZ 12029-CA, C1417, C1139, 1788222, 48688, 601000, \u003cstrong\u003eDG508\u003c\/strong\u003e, DG-508, DG457, DG-457, DG472, DF-472, F523, F-523\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\u003e1999-2004 Ford F-250 Super Duty 6.8L V10 Gas Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the P131 F-250?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1999-2004 Ford F-250 equipped with the \u003cstrong\u003e6.8L Triton V10\u003c\/strong\u003e engine. \u003cstrong\u003eThis kit is not compatible with 5.4L V8 models, 7.3L or 6.0L Power Stroke diesel engines, or universal applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre spark plug wires included with this kit?\u003c\/h4\u003e\n\u003cp\u003eNo, the 2-valve 6.8L Modular engine operates on an individual Coil-on-Plug (COP) design where the coil mounts directly over the spark plug, completely eliminating standard high-tension spark plug wires.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Super Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eP131\u003c\/strong\u003e Super Duty relies on massive low-rpm torque to haul heavy payloads and pull fifth-wheel trailers. Refreshing the full set of coils and plugs ensures consistent peak combustion pressure across all ten cylinders, safeguarding your powertrain from unburned fuel washdown and maintaining dependable towing performance.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67562432790776,"sku":"DS-ETJZ4AF3H","price":115.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-ford-f-250-1999-2004-6-8l-1.jpg?v=1790980955","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-spark-plugs-for-ford-f-250-1999-2004-6-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}