{"product_id":"ignition-coil-spark-plug-for-isuzu-ascender-2005-2006-5-3l-v8-round-style","title":"Ignition Coil \u0026 Spark Plug for Isuzu Ascender (2005-2006) 5.3L V8 (Round Style)","description":"\u003ch2\u003eHigh-Energy Ignition Coil \u0026amp; Spark Plug Kit for 2005-2006 Isuzu Ascender\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect replacement complete ignition tune-up kit designed to restore lost spark energy and resolve misfires in the 5.3L V8 GMT360 platform.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ascender Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory D514A\/UF414 round-style ignition coils on the 5.3L LS-based V8 are prone to thermal degradation over time due to persistent heat cycling under the hood. As the OE epoxy breaks down, secondary winding resistance increases, leading to weak spark delivery under load. This commonly manifests as an intermittent P0300 random misfire code, rough idle, hesitation during acceleration, and decreased fuel efficiency. Additionally, the factory spark plug wires often experience dielectric breakdown and silicone jacket cracking, further deteriorating the spark transfer and triggering check engine lights.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition kit provides a robust upgrade over the aging factory setup. Each round-style coil pack is manufactured with high-grade epoxy internal construction to resist thermal shock and mechanical vibration. Engineered to deliver a maximum voltage output of 32,000V with a 61:1 turns ratio, these coils yield up to 20% more discharge energy than OE equivalents. The upgraded internal copper windings maintain a strict 0.660 ohm primary and 6.1K ohm secondary resistance for a strong, consistent spark. Paired with precise-fit 748UU plug wires featuring durable jackets to prevent arcing, and 41962 spark plugs for optimal combustion, this kit ensures a smooth idle and reliable power delivery across the RPM range.\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;\"\u003e2005-2006 Isuzu Ascender\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;\"\u003e5.3L V8 (LH6) \/ GMT360\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;\"\u003e300 hp \/ 330 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\u003e2005-2006 Isuzu Ascender 5.3L V8 (Must verify Round Coil style)\u003c\/li\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  \u003cli\u003e\u003cem\u003eNote: Only applicable to round coils (D514A \/ UF414), not suitable for square coils.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMT360 Towing Standard\u003c\/h3\u003e\n\u003cp\u003eFor an SUV built to haul, maintaining optimal combustion is critical for consistent torque delivery. This ignition set guarantees reliable towing power and smooth daily drivability without the misfires or loss of power associated with degraded factory components.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":49711148073208,"sku":"DS-EGZIODTTZ","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-isuzu-ascender-2005-2006-5-3l-v8-round-style-1.jpg?v=1782796731","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-spark-plug-for-isuzu-ascender-2005-2006-5-3l-v8-round-style","provider":"Performance Chip Tuning","version":"1.0","type":"link"}