{"product_id":"ignition-coil-iridium-spark-plugs-for-mercedes-benz-g-class-2005-2008-5-5l","title":"Ignition Coil + Iridium Spark Plugs for Mercedes Benz G-Class (2005-2008) 5.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2005-2008 Mercedes Benz G-Class (W463)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The complete ignition kit replaces worn factory ignition coils and spark plugs on the 2005-2008 Mercedes Benz G-Class to eliminate boost-induced misfires and restore balanced flame kernel propagation across all 16 combustion points.\u003c\/p\u003e\n\n\n\u003ch3\u003eThe Stock Mercedes Benz G-Class Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe supercharged 5.5L \u003cstrong\u003eM113K\u003c\/strong\u003e engine in the \u003cstrong\u003eW463\u003c\/strong\u003e chassis subjects ignition components to intense thermal stress and high cylinder pressures. Over time, radiant engine bay heat degrades the factory dual-output coil epoxy insulation, causing internal copper winding resistance to drift and spark leakage across the coil towers. Paired with aged spark plug electrodes exhibiting expanded gaps, this degradation causes spark blowout under boost, sluggish throttle response, erratic idle, and multi-cylinder misfire fault codes (P0300–P0308).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement kit pairs 8 dual-tower ignition coils with 16 \u003cstrong\u003eDenso Iridium TT\u003c\/strong\u003e (IKH20TT) spark plugs engineered specifically for the twin-plug Mercedes-Benz ignition strategy. Each coil features reinforced dielectric epoxy housings and high-conductivity copper primary and secondary windings built to resist thermal breakdown under sustained load. The Denso spark plugs utilize a 0.4mm iridium center electrode and a 0.7mm platinum ground electrode, significantly reducing ignition voltage demand and ensuring stable combustion through positive manifold pressure.\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;\"\u003e2005-2008 Mercedes Benz G-Class\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\u003eM113K\u003c\/strong\u003e 5.5L Supercharged V8 \/ \u003cstrong\u003eW463\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;\"\u003e469-493 hp \/ 516 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\u003eUF359\u003c\/strong\u003e, \u003cstrong\u003eGN10361\u003c\/strong\u003e, \u003cstrong\u003eC671\u003c\/strong\u003e, \u003cstrong\u003eC1361\u003c\/strong\u003e, \u003cstrong\u003e5C1226\u003c\/strong\u003e, \u003cstrong\u003e5098138AA\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\u003e2005-2008 Mercedes Benz G-Class G55 AMG (Supercharged 5.5L V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the W463 G-Class?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2008 Mercedes Benz G-Class equipped with the supercharged 5.5L \u003cstrong\u003eM113K\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eShould the Denso Iridium TT spark plugs be gapped before installation?\u003c\/h4\u003e\n\u003cp\u003eNo, the plugs are pre-set to factory specifications and manual adjustment risks fracturing the ultra-fine 0.4mm iridium center electrode.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mercedes Benz Precision Standard\u003c\/h3\u003e\n\u003cp\u003eMaintaining precision ignition timing and complete fuel burn on high-output European powertrains is critical to preserving downstream lambda sensors and catalytic converters. This kit maintains OEM dwell profiles, preventing check engine lights while restoring crisp high-rpm acceleration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67524634083576,"sku":"DS-EXB9EWK7Z","price":433.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-mercedes-benz-g-class-2005-2008-5-5l-1.jpg?v=1790460790","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-iridium-spark-plugs-for-mercedes-benz-g-class-2005-2008-5-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}