{"product_id":"ignition-coil-spark-plug-for-chevy-silverado-1500-2500-hd-2007-2016-v8-round-style","title":"Ignition Coil \u0026 Spark Plug for Chevy Silverado 1500 2500 HD (2007-2016) V8 (Round Style)","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Spark Plug Kit for 2007-2016 Chevrolet Silverado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eReplaces failing OEM ignition coils and worn spark plugs to eliminate misfires, restore consistent spark delivery, and provide 20% greater discharge energy for optimal combustion.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Silverado Ignition System Weakness\u003c\/h3\u003e\n\u003cp\u003eFactory GM Gen IV V8 ignition coils and older plug wires are notoriously susceptible to thermal breakdown and internal resistance spikes over high-mileage cycles. The constant heat cycling generated by the cast iron or aluminum engine blocks degrades the internal epoxy potting of the OEM coils. This degradation causes microscopic cracking, which leads to voltage leakage, high-rpm misfires, rough idling, and poor fuel efficiency. Furthermore, standard carbon-core wires degrade from ambient underhood temperatures, increasing resistance and weakening the spark before it reaches the combustion chamber.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit replacement package overhauls the ignition circuit using upgraded round-style D514A\/UF414 coil packs, 748UU spark plug wires, and 41962 spark plugs. The redesigned coils utilize high-grade internal copper windings and advanced epoxy resin construction to withstand extreme thermal loads without cracking. These units are engineered to produce a maximum voltage output of 32,000V—a 20% increase in discharge energy compared to standard OEM units. The higher 61:1 turns ratio ensures a robust, consistent spark arc across the plug gap, reducing the risk of blowout under heavy load or towing conditions. This translates to smoother acceleration and stabilized idle characteristics.\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 Chevrolet Silverado 1500 \u0026amp; 2500 HD (Round Style Coils)\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 LS \/ 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;\"\u003e315-360 hp \/ 335-380 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, 748UU, 41962\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 1500 \u0026amp; 2500 HD\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  \u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Only fits models equipped with Round Style Coils (D514A \/ UF414). Does NOT fit Square Style Coils (D510C \/ UF413). Verify factory coils before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Workhorse Standard\u003c\/h3\u003e\n\u003cp\u003eWhether hauling heavy payloads or towing trailers, maintaining optimal ignition health ensures your Silverado's V8 delivers the uncompromised torque, fuel efficiency, and heavy-duty reliability required for demanding utility applications.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":49711000486136,"sku":"DS-E0BQO9P9R","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-chevy-silverado-1500-2500-hd-2007-2016-v8-round-style-1.jpg?v=1782796283","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-spark-plug-for-chevy-silverado-1500-2500-hd-2007-2016-v8-round-style","provider":"Performance Chip Tuning","version":"1.0","type":"link"}