{"product_id":"ignition-coil-platinum-spark-plugs-for-ford-explorer-2009-2010-4-6l","title":"Ignition Coil + Spark Plugs for Ford Explorer (2009-2010) 4.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Replacement Ignition Coil and Platinum Spark Plug Kit for 2009-2010 Ford Explorer (U251)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The complete ignition kit replaces degrading factory coil-on-plug packs and worn spark plugs on the 2009-2010 Ford Explorer to eliminate misfires, stabilize idle combustion, and restore factory throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Explorer Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory coil-on-plug (COP) assemblies on the \u003cstrong\u003e4.6L Modular 3V\u003c\/strong\u003e engine suffer from thermal degradation over sustained operating cycles. The internal epoxy insulation weakens under continuous underhood heat soak, leading to dielectric breakdown, secondary winding failure, and micro-arcing against the aluminum cylinder head. Compounded by ground electrode erosion on high-mileage spark plugs, the widened gap demands excessive secondary voltage. This strains the primary ignition circuit, generating hesitation, reduced fuel efficiency, and P0300–P0308 diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive tune-up kit restores primary and secondary ignition integrity by pairing heavy-duty ignition coils with factory-specified \u003cstrong\u003eMotorcraft SP509\u003c\/strong\u003e platinum spark plugs. The direct-fit replacement coils utilize premium magnetic copper core windings sealed in high-dielectric epoxy to withstand high thermal loads and prevent voltage bleed-off. Matched with erosion-resistant platinum electrodes, the kit maintains optimal spark kernel energy across all eight cylinders, ensuring rapid flame propagation and smooth combustion under heavy towing and daily driving.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e8 Direct-Fit Ignition Coils\u003c\/li\u003e\n  \u003cli\u003e8 Motorcraft Platinum 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;\"\u003e2009-2010 Ford Explorer\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;\"\u003e4.6L Modular 3-Valve V8 \/ U251\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;\"\u003e292 hp \/ 315 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;\"\u003eFD509, SP509, EBC1519, 26C1045, SKIC501, CFD509, C1659VC, 2IGC0157, 673-6200, 52-2071, C1659SPEC, 2-50107, 140033E, 140033EB, 140033EB-8, 140033EK, 140033EK-8, 1IC486, 50107, 36-8180, 5096, 2505-484845, IGC0117, E509, C1659, 022150470A, GN10233, 48874, U5260, C-800, C1659-8, C1659DLGKIT, 8L3Z12029A, 921-2007, 921-2066, 5C1716\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\u003e2009 Ford Explorer 4.6L V8\u003c\/li\u003e\n  \u003cli\u003e2010 Ford Explorer 4.6L V8\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 U251 Explorer?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2009-2010 Ford Explorer equipped with the \u003cstrong\u003e4.6L Modular 3V\u003c\/strong\u003e engine. It is not compatible with 4.0L V6 engines or pre-2009 4.6L 2-valve\/early 3-valve heads utilizing high-thread spark plug designs.\u003c\/p\u003e\n\n\u003ch4\u003eAre spark plug wires required for installation?\u003c\/h4\u003e\n\u003cp\u003eNo, the 4.6L 3-valve configuration utilizes a direct coil-on-plug setup; each coil mounts directly above its dedicated spark plug without traditional plug wires.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Towing \u0026amp; Utility Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle sustained payload hauling and trailering demands, this ignition package delivers the consistent high-voltage delivery your Ford SUV requires under continuous load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67561492578552,"sku":"DS-EX5KVYZRT","price":233.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-platinum-spark-plugs-for-ford-explorer-2009-2010-4-6l-1.jpg?v=1790964591","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-platinum-spark-plugs-for-ford-explorer-2009-2010-4-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}