{"product_id":"ignition-coil-spark-plugs-for-chevrolet-c2500-c3500-k2500-k3500-1996-2000-5-0l-5-7l-7-4l","title":"Ignition Coil + Spark Plugs for Chevrolet C2500 C3500 K2500 K3500 (1996-2000) 5.0L 5.7L 7.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Replacement Ignition Coil and Spark Plug Kit for 1996-2000 Chevrolet C\/K Trucks (GMT400)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and spark plug kit replaces degraded secondary ignition components on 1996-2000 Chevrolet C\/K Trucks to eliminate misfires under heavy load, restore combustion efficiency, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet C\/K Trucks Dielectric Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory secondary ignition system on \u003cstrong\u003eGMT400\u003c\/strong\u003e platform trucks equipped with \u003cstrong\u003eL30\u003c\/strong\u003e, \u003cstrong\u003eL31\u003c\/strong\u003e, and \u003cstrong\u003eL29\u003c\/strong\u003e Vortec V8 engines relies on a single coil driving a distributor. Decades of engine-bay thermal cycling cause the factory coil's internal epoxy potting to crack and its winding insulation to deteriorate. This results in severe high-voltage arcing to ground under towing loads. Simultaneously, standard copper spark plugs experience electrode erosion and gap widening over time. This increased gap forces the compromised coil to operate past its saturation limits, triggering secondary ignition breakdown, hesitation, and P0300 multi-cylinder misfire codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis ignition service kit eliminates secondary breakdown by restoring proper voltage transfer across the combustion cycle. The replacement coil utilizes premium magnetic steel laminations and heat-resistant epoxy insulation to resist thermal degradation and internal shorting, ensuring reliable spark energy delivery. Matched with eight precision spark plugs featuring high-dielectric ceramic insulators and erosion-resistant electrode cores, this kit maintains optimal flame front initiation. Designed as a direct mechanical replacement for OEM part \u003cstrong\u003e10489421\u003c\/strong\u003e and \u003cstrong\u003eD577\u003c\/strong\u003e, the coil fits existing factory brackets and connects directly to the OEM harness connector without splicing.\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;\"\u003e1996-2000 Chevrolet C\/K Trucks (C2500, C3500, K2500, K3500)\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;\"\u003e5.0L (L30), 5.7L (L31), 7.4L (L29) \/ GMT400\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;\"\u003e220-290 hp \/ 285-410 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;\"\u003e10489421, D577, 19207138, 19418996, DR49T, C1098VC\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\u003e1997-1998 Chevrolet C2500 5.0L\u003c\/li\u003e\n  \u003cli\u003e1997-2000 Chevrolet C2500 5.7L, 7.4L\u003c\/li\u003e\n  \u003cli\u003e1996-2000 Chevrolet C3500 5.7L, 7.4L\u003c\/li\u003e\n  \u003cli\u003e1996-2000 Chevrolet K2500 5.7L, 7.4L\u003c\/li\u003e\n  \u003cli\u003e1996-2000 Chevrolet K3500 5.7L, 7.4L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GMT400 C\/K Trucks?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1996-2000 Chevrolet C\/K Trucks equipped with the \u003cstrong\u003eL30\u003c\/strong\u003e, \u003cstrong\u003eL31\u003c\/strong\u003e, or \u003cstrong\u003eL29\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould spark plug gaps be verified before installation?\u003c\/strong\u003e\u003cbr\u003e Yes, always verify electrode gap against the factory under-hood emissions label or service manual specs prior to threading them into the cylinder head.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the high heat and sustained load demands of heavy payload and commercial towing, this ignition package restores dependable spark generation across all eight cylinders for reliable truck operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50626029846776,"sku":"DS-E2LCXI4XC","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-chevrolet-c2500-c3500-k2500-k3500-1996-2000-5-0l-5-7l-7-4l-1.jpg?v=1790353659","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-spark-plugs-for-chevrolet-c2500-c3500-k2500-k3500-1996-2000-5-0l-5-7l-7-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}