{"product_id":"ignition-coil-spark-plug-for-gmc-sierra-1500-2500-hd-3500-hd-2007-2016-v8-round-style","title":"Ignition Coil \u0026 Spark Plug for GMC Sierra 1500 2500 HD 3500 HD (2007-2016) V8 (Round Style)","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Spark Plug Kit for 2007-2016 GMC Sierra V8\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirectly replaces degraded OEM round-style ignition coils, wires, and spark plugs to restore maximum voltage output, resolving misfires and hesitation under heavy load.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Sierra Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eThe factory OEM coils on GM's Gen IV Vortec V8 engines frequently suffer from thermal degradation and epoxy housing fractures. Repeated extreme heat cycling in the engine bay causes the internal potting to crack, leading to increased primary resistance and weak spark blow-out when the engine is subjected to heavy towing or payload demands. Over time, the factory spark plug wire insulation also breaks down, causing parasitic voltage leaks to the engine block and triggering persistent P0300-series misfire diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition kit utilizes upgraded D514A\/UF414 round-body coil packs engineered with an advanced thermal epoxy construction to resist heat soak and vibration. Operating with a 61:1 turns ratio and a peak maximum voltage of 32,000V, these units deliver 20% more spark energy than the standard OEM components. High-conductivity durable copper internal wire winding ensures minimal voltage drop, while the housings offer superior dielectric strength. The included 748UU silicone-jacketed spark plug wires prevent arcing, and paired with the 41962 spark plugs, the system guarantees a complete burn for restored throttle response and fuel efficiency. \u003cem\u003eNote: This kit is strictly for applications equipped with factory round coils and will not fit models utilizing the square body UF413\/D510C.\u003c\/em\u003e\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;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2016 GMC Sierra 1500 \/ 2500 HD \/ 3500 HD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGen IV Vortec V8 \/ GMT900 \u0026amp; K2XX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e315-403 hp \/ 335-417 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF414, D514A, 12573190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCadillac Escalade\u003c\/li\u003e\n  \u003cli\u003eChevrolet Avalanche\u003c\/li\u003e\n  \u003cli\u003eChevrolet Silverado\u003c\/li\u003e\n  \u003cli\u003eChevrolet Suburban\u003c\/li\u003e\n  \u003cli\u003eChevrolet Express\u003c\/li\u003e\n  \u003cli\u003eChevrolet Tahoe\u003c\/li\u003e\n  \u003cli\u003eChevrolet Trailblazer\u003c\/li\u003e\n  \u003cli\u003eGMC Savana\u003c\/li\u003e\n  \u003cli\u003eGMC Yukon\u003c\/li\u003e\n  \u003cli\u003eHummer H3\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eWhen it comes to hauling heavy payloads or trailering over steep grades, consistent spark delivery is critical to maintaining power and preventing detonation. Upgrading your Sierra's ignition system ensures rock-solid dependability and maximum torque output when you need it most.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":49711109734648,"sku":"DS-EXJ41ZESP","price":179.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plug-for-gmc-sierra-1500-2500-hd-3500-hd-2007-2016-v8-round-style-1.jpg?v=1782796609","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-spark-plug-for-gmc-sierra-1500-2500-hd-3500-hd-2007-2016-v8-round-style","provider":"Performance Chip Tuning","version":"1.0","type":"link"}