{"title":"Ignition Coils for Chevrolet Colorado","description":"\u003ch2\u003eReliable Spark Delivery Compatible with Chevrolet Colorado\u003c\/h2\u003e\n\u003cp\u003eWhether your truck runs an Atlas inline engine, a 5.3L V8, or a second-generation 3.6L V6, aging coil packs lead to rough idling, reduced fuel economy, and sudden misfires under load. Upgrading with reliable \u003ca href=\"\/collections\/performance-ignition\"\u003eperformance ignition\u003c\/a\u003e components restores strong, consistent spark across all RPM ranges. To optimize overall drivability, consider pairing fresh coils with a calibrated \u003ca href=\"\/collections\/chevrolet-performance-tune\"\u003eperformance tune for Chevrolet\u003c\/a\u003e or high-flow \u003ca href=\"\/collections\/chevrolet-air-intakes\"\u003ecold air intakes compatible with Chevrolet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eColorado Fitment and Engine Coverage\u003c\/h3\u003e\n\u003cp\u003eOur current catalog covers select applications across the 2004–2021 model years. Available fitments include the 2.8L and 2.9L four-cylinders, 3.5L and 3.7L inline-fives, the 2009–2012 5.3L V8, plus second-generation 2.5L four-cylinder and 3.6L V6 trucks. For additional truck and car platforms, explore our full selection of \u003ca href=\"\/collections\/chevrolet-ignition\"\u003eignition parts for Chevrolet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch3\u003eWill new ignition coils fix my Colorado’s P0300 misfire code?\u003c\/h3\u003e\n\u003cp\u003eYes. If the code is triggered by heat breakdown, carbon tracking, or failing internal windings, installing new direct-fit coil packs will stabilize spark output and clear cylinder-specific misfire trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eWhy replace spark plugs and ignition coils at the same time?\u003c\/h3\u003e\n\u003cp\u003eOld spark plugs develop widened electrode gaps over time. This increased resistance forces the ignition coil to run significantly hotter, speeding up internal failure. Installing matched iridium spark plugs protects your new coils and delivers balanced cylinder combustion.\u003c\/p\u003e\n\n\u003ch3\u003eAre these coils direct plug-and-play on Atlas inline-four and inline-five engines?\u003c\/h3\u003e\n\u003cp\u003eYes. Each unit is engineered to match factory mounting locations, resistance specifications, and wire harness plugs for quick, bolt-on replacement on 2.8L, 2.9L, 3.5L, and 3.7L engines without modifications.\u003c\/p\u003e","products":[{"product_id":"high-performance-ignition-coil-for-chevrolet-colorado-2009-2012-5-3l","title":"High Performance Ignition Coil for Chevrolet Colorado (2009-2012) 5.3L","description":"\u003ch2\u003eHigh-Output Ignition Coil Upgrade for 2009-2012 Chevrolet Colorado (LH8\/LH9 \/ GMT355)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDesigned specifically for the 5.3L Gen IV V8, this set of 8 UF414 replacement ignition coils upgrades OEM ignition voltage to eliminate misfires under heavy load.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock GMT355 Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eThe factory Delphi-style coils equipped on the 5.3L LH8 and LH9 engines are notorious for degrading over time, particularly under continuous thermal cycling inside the tight GMT355 engine bay. As the internal epoxy deteriorates, the stock coils experience dielectric breakdown, leading to parasitic voltage leaks. This mechanically manifests as high-RPM misfires, sluggish throttle response during towing operations, and poor fuel economy. Furthermore, as the internal primary windings succumb to prolonged heat soak, the resulting weak spark fails to fully combust the air-fuel mixture, leaving unburnt fuel and increasing the risk of premature catalytic converter degradation over high mileage periods.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis UF414 ignition coil set addresses these OEM shortcomings through an over-engineered winding design and superior insulation materials. Utilizing advanced copper wire internals and a high-dielectric epoxy housing, these coils generate a significantly hotter, more stable spark compared to factory specifications. This enhanced spark energy ensures complete combustion, even under high cylinder pressures encountered during steep towing gradients. The upgraded silicone boots provide excellent resistance to extreme engine bay temperatures and moisture penetration, effectively eliminating voltage flashover. By maintaining precise spark timing and maximum electrical output, this upgrade restores factory idle smoothness, improves low-end torque delivery, and stabilizes peak horsepower output throughout the entire 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;\"\u003e2009-2012 Chevrolet Colorado\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 (LH8 \/ LH9) \/ GMT355\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 \/ 320 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\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2009 Chevrolet Colorado 5.3L V8\u003c\/li\u003e\n    \u003cli\u003e2010 Chevrolet Colorado 5.3L V8\u003c\/li\u003e\n    \u003cli\u003e2011 Chevrolet Colorado 5.3L V8\u003c\/li\u003e\n    \u003cli\u003e2012 Chevrolet Colorado 5.3L V8\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Chevrolet Workhorse Standard\u003c\/h3\u003e\n  \u003cp\u003eBuilt to handle rigorous towing cycles and sustained heavy-duty use, these upgraded coils deliver the reliability and consistent ignition performance required to keep your 5.3L Colorado operating at peak efficiency under the most demanding loads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48234145087736,"sku":"DS-ELQU07S4J","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-performance-ignition-coil-for-chevrolet-colorado-2009-2012-5-3l-1.jpg?v=1776098173"},{"product_id":"ignition-coil-iridium-spark-plugs-for-chevrolet-colorado-2007-2012-3-7l-i5","title":"Ignition Coil \u0026 Iridium Spark Plugs for Chevrolet Colorado (2007-2012) 3.7L I5","description":"\u003ch2\u003eUpgraded Ignition Coils \u0026amp; Iridium Spark Plugs for 2007-2012 Chevrolet Colorado (LLR \/ GMT355)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect replacement ignition system overhaul designed to restore spark energy and eliminate misfires on high-mileage Atlas 3.7L engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Colorado LLR Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eThe factory ignition coils and standard copper-core spark plugs on the GMT355 Colorado are highly susceptible to thermal degradation and dielectric breakdown over extended duty cycles. The inline-5 configuration inherently generates localized heat pockets, particularly near the rear of the engine bay, which accelerates the deterioration of the OEM coil boot material and epoxy resin. As mileage increases, resistance within the primary and secondary coil windings builds up, leading to voltage leaks, sluggish throttle response, rough idling, and under-load misfires. Additionally, standard spark plug electrodes erode rapidly under these conditions, widening the spark gap and forcing the coils to work harder, compounding the ignition failure loop.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition package overhauls the LLR's spark delivery system utilizing advanced materials. The five high-output ignition coils feature precision-wound copper wire engineered to reduce internal resistance and maximize voltage transfer. Wrapped in high-dielectric epoxy and protected by a robust silicone boot, these coils resist the intense thermal cycling of the Atlas I5 engine bay while actively preventing voltage arcing. Paired with five performance iridium spark plugs, the system ensures a highly concentrated, consistent spark. Iridium’s superior melting point and hardness allow for a micro-electrode design, which significantly reduces the voltage requirement for spark propagation. This results in a cleaner fuel burn, restored factory output, improved torque curves, and long-term reliability without the premature gap erosion seen in standard plugs.\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;\"\u003e2007-2012 Chevrolet Colorado\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;\"\u003eLLR 3.7L I5 \/ GMT355\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;\"\u003e242 hp \/ 242 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;\"\u003eIC78051257057810010305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007 Chevrolet Colorado 3.7L I5\u003c\/li\u003e\n  \u003cli\u003e2008 Chevrolet Colorado 3.7L I5\u003c\/li\u003e\n  \u003cli\u003e2009 Chevrolet Colorado 3.7L I5\u003c\/li\u003e\n  \u003cli\u003e2010 Chevrolet Colorado 3.7L I5\u003c\/li\u003e\n  \u003cli\u003e2011 Chevrolet Colorado 3.7L I5\u003c\/li\u003e\n  \u003cli\u003e2012 Chevrolet Colorado 3.7L I5\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eRestoring peak ignition performance is critical for maintaining the heavy-duty reliability, payload capacity, and towing efficiency expected from the GMT355 truck platform.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48266172039416,"sku":"DS-EZQCIDO9Z","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-chevrolet-colorado-2007-2012-3-7l-i5-1.jpg?v=1776806857"},{"product_id":"ignition-coil-iridium-spark-plugs-for-chevrolet-colorado-2015-2016-3-6l-v6","title":"Ignition Coil \u0026 Iridium Spark Plugs for Chevrolet Colorado (2015-2016) 3.6L V6","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plugs for 2015-2016 Chevrolet Colorado (LFX \/ GMT31XX)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eRestores critical firing voltage and ensures complete combustion for the 3.6L LFX engine.\u003c\/strong\u003e This direct-replacement ignition coil and iridium spark plug kit resolves common misfires, rough idling, and reduced fuel economy inherent to aging, high-mileage ignition systems.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Colorado Ignition Degradation\u003c\/h3\u003e\n  \u003cp\u003eThe factory ignition components on the 3.6L LFX V6 are prone to significant thermal degradation over time. Positioned in a high-heat environment, the OEM coil packs experience dialectic breakdown and epoxy micro-cracking, leading to parasitic voltage leaks. Simultaneously, standard spark plug electrodes erode under the intense combustion pressures of the LFX engine, widening the spark gap. This creates a cascading failure effect: the coils overwork to jump the larger gap, increasing internal resistance, overheating the primary windings, and ultimately resulting in primary circuit failure, cylinder misfires, and a flashing Check Engine Light under heavy load or towing conditions.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis comprehensive replacement kit tackles the thermal and electrical shortcomings of the OEM system directly. The included ignition coils are manufactured with high-dielectric epoxy and upgraded copper windings, drastically reducing electrical resistance and preventing voltage dissipation even under severe under-hood heat soak. The kit pairs these upgraded coils with premium iridium-tipped spark plugs. Iridium is significantly harder and more heat-resistant than standard platinum or copper, allowing for a concentrated, ultra-fine center electrode. This requires less firing voltage to bridge the gap, relieving stress on the new coils while guaranteeing a consistent, powerful spark event. The result is restored 305 horsepower output, smoothed idle characteristics, and optimal fuel burn efficiency.\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;\"\u003e2015-2016 Chevrolet Colorado\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;\"\u003eLFX \/ GMT31XX\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;\"\u003e305 hp \/ 269 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;\"\u003e3340078J00, 3340078J01, 3340078J02, 3340078J03, CLS1226, V40-70-0092, 921-2109, 2505-301881, 673-7300, C-761, IC649\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2015 Chevrolet Colorado 3.6L V6\u003c\/li\u003e\n    \u003cli\u003e2016 Chevrolet Colorado 3.6L V6\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n  \u003cp\u003eEngineered for the rigorous demands of mid-size truck duty, this ignition kit ensures your Colorado maintains the reliable pulling power and consistent torque delivery required for towing, hauling, and off-road capability without the risk of high-load misfires.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48303173501176,"sku":"DS-EWLRRIJG9","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-chevrolet-colorado-2015-2016-3-6l-v6-1.jpg?v=1777577111"},{"product_id":"ignition-coil-spark-plug-for-chevy-colorado-2009-2012-v8-round-style","title":"Ignition Coil \u0026 Spark Plug for Chevy Colorado (2009-2012) V8 (Round Style)","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Spark Plug Set for 2009-2012 Chevrolet Colorado\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDirect Replacement Ignition Upgrade:\u003c\/strong\u003e Replaces the aging factory ignition coils and plugs to restore lost power, eliminate misfires, and deliver a 20% increase in spark energy.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock Colorado Ignition Weakness\u003c\/h3\u003e\n  \u003cp\u003eOver time, factory GM round-style ignition coils on the 5.3L V8 suffer from thermal degradation and internal resistance breakdown. The continuous heat cycling within the GMT355 engine bay causes the OEM epoxy potting to degrade, leading to voltage leaks and localized arcing. This degrades primary ignition performance, resulting in intermittent misfires, rough idling, and reduced towing power. Paired with aged spark plugs and deteriorated wire insulation, the ECU ultimately pulls timing, impacting fuel economy and throttle response under load.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis ignition kit directly resolves these thermal and electrical vulnerabilities. Featuring D514A \/ UF414 round-style coil packs, the updated design utilizes high-grade epoxy internal construction to isolate the internal copper windings, ensuring consistent performance up to 32,000 maximum volts. Delivering a 61:1 turns ratio and 20% more discharge energy than OE components, these coils ensure a complete combustion event. The included 748UU spark plug wires feature heavy-duty silicone boots to suppress EMI\/RFI interference, while the precision 41962 spark plugs maximize the burn rate, guaranteeing stable spark timing.\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;\"\u003e2009-2012 Chevrolet Colorado (V8 Models)\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 (LH8\/LH9) \/ GMT355\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 \/ 320 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\u003e2009-2012 Chevrolet Colorado (V8 Models, Round Coil)\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  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n  \u003cp\u003eFor a mid-size truck heavily relied upon for hauling and utility, consistent ignition performance is mandatory. Upgrading to these high-energy coils ensures your Colorado maintains the necessary torque curve and reliability required for heavy towing and off-road capability without triggering check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":49710956413176,"sku":"DS-EFSRUDL1Q","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-colorado-2009-2012-v8-round-style-1.jpg?v=1782796097"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2015-2021-2-5l","title":"Ignition Coil and Iridium Spark Plugs for Chevrolet Colorado (2015-2021) 2.5L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2015-2021 Chevrolet Colorado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores factory secondary ignition performance and eliminates misfires by replacing degraded coil-on-plug packs and worn spark plugs with high-dielectric copper coils and pre-gapped iridium plugs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Colorado Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eOver thousands of thermal cycles, the factory ignition coils on the 2.5L LCV engine suffer internal insulation breakdown and micro-cracking in the epoxy casing. This thermal stress causes secondary winding resistance drift, resulting in voltage leakage, rough idle, hesitation under load, and intermittent P0300-P0304 misfire diagnostic trouble codes. Concurrently, factory plugs suffer electrode erosion, widening the spark gap and overworking the coils.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive kit provides four coil packs wound with high-conductivity oxygen-free copper and insulated with high-grade epoxy resin to prevent dielectric puncture under high-temperature cylinder-head conditions. Paired with four fine-wire iridium spark plugs, this setup ensures lower required firing voltage, precise flame kernel formation, and stable combustion across the entire RPM band. The direct-fit blade connectors and boots resist ozone and thermal cracking, restoring immediate throttle response and efficient fuel burn.\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;\"\u003e2015-2021 Chevrolet Colorado\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;\"\u003e2.5L LCV Ecotec I4 \/ GMT 700\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;\"\u003e200 hp \/ 191 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;\"\u003eUF680, 12654078, 12627120, 12652400, C869, C1827, 5C1884, GN10682\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2015 Chevrolet Colorado 2.5L L4 Base, WT, LT\u003c\/li\u003e\n  \u003cli\u003e2016 Chevrolet Colorado 2.5L L4 Base, WT, LT\u003c\/li\u003e\n  \u003cli\u003e2017 Chevrolet Colorado 2.5L L4 Base, WT, LT\u003c\/li\u003e\n  \u003cli\u003e2018 Chevrolet Colorado 2.5L L4 Base, WT, LT\u003c\/li\u003e\n  \u003cli\u003e2019 Chevrolet Colorado 2.5L L4 Base, WT, LT\u003c\/li\u003e\n  \u003cli\u003e2020 Chevrolet Colorado 2.5L L4 Base, WT, LT\u003c\/li\u003e\n  \u003cli\u003e2021 Chevrolet Colorado 2.5L L4 WT, LT\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the continuous duty cycles and thermal loads required of a working mid-size pickup, this ignition system ensures consistent combustion stability under payload and towing conditions without premature spark degradation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50449174528248,"sku":"DS-EBE0P2LJD","price":100.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2015-2021-2-5l-1.jpg?v=1788668789"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2017-2021-3-6l","title":"Ignition Coil and Iridium Spark Plugs for Chevrolet Colorado (2017-2021) 3.6L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Kit for 2017-2021 Chevrolet Colorado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces worn factory secondary ignition components to eliminate engine misfires, stabilize idle quality, and restore peak combustion efficiency across all six cylinders.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Colorado Ignition Degradation\u003c\/h3\u003e\n\u003cp\u003eUnder continuous thermal cycling and high-duty engine operation, the factory coil-on-plug units on the 3.6L direct-injected platform suffer from dielectric breakdown and micro-cracking within the internal epoxy potting. This thermal fatigue, combined with natural electrode erosion on aging spark plugs, increases resistance across the secondary ignition circuit. The result is weakened spark output, hesitation under load, erratic idle speed, and diagnostic trouble codes such as P0300 through P0306.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit includes six reinforced coil-on-plug assemblies engineered with high-conductivity copper primary and secondary windings, heavy-duty thermoplastic housings, and OEM-spec direct-fit blade terminals. Paired with six fine-wire iridium spark plugs engineered for superior thermal resistance and gap stability, this package provides consistent spark energy, robust flame kernel propagation, and dependable high-load combustion efficiency.\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;\"\u003e2017-2021 Chevrolet Colorado\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;\"\u003e3.6L LGZ V6 \/ GMT 31XX\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;\"\u003e308 hp \/ 275 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;\"\u003eUF830, 12666339, 12688894, C962, C2035, 5C2094, GN10889\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2017 Chevrolet Colorado 3.6L V6 (LT, WT, Z71, ZR2)\u003c\/li\u003e\n  \u003cli\u003e2018 Chevrolet Colorado 3.6L V6 (LT, WT, Z71, ZR2)\u003c\/li\u003e\n  \u003cli\u003e2019 Chevrolet Colorado 3.6L V6 (LT, WT, Z71, ZR2)\u003c\/li\u003e\n  \u003cli\u003e2020 Chevrolet Colorado 3.6L V6 (LT, WT, Z71, ZR2)\u003c\/li\u003e\n  \u003cli\u003e2021 Chevrolet Colorado 3.6L V6 (LT, WT, Z71, ZR2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Colorado Durability Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned to withstand the harsh thermal and vibrational demands of heavy payload hauling and sustained towing, this ignition kit maintains consistent spark delivery under peak cylinder pressures without spark blowout or thermal degradation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50449184162040,"sku":"DS-EJTRA6MC7","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2017-2021-3-6l-1.jpg?v=1788669096"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2004-2006-2-8l","title":"Ignition Coil and Iridium Spark Plugs for Chevrolet Colorado (2004-2006) 2.8L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2004-2006 Chevrolet Colorado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit restores factory spark energy and stabilizes combustion across the cylinder bank on the 2004-2006 Chevrolet Colorado 2.8L to eliminate misfires and rough idling.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Colorado Atlas Ignition Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory coil-on-plug modules on the \u003cstrong\u003eGMT355\u003c\/strong\u003e platform endure severe thermal cycling directly above the exhaust manifold side of the cylinder head. Over time, engine bay heat degrades the internal copper primary and secondary windings, causing dielectric breakdown within the epoxy insulation. Concurrently, factory copper or platinum plugs experience electrode erosion, widening the spark gap past standard tolerances. This elevated electrical resistance overworks aging coil packs, inducing micro-arcing through dried silicone boots and triggering P0300 through P0304 DTC misfire codes under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement ignition service pack utilizes high-grade magnetic steel cores and copper wire winding with elevated temperature insulation ratings to resist electrical leakage under high thermal stress. Mated with fine-wire iridium-tipped spark plugs, the assembly concentrates spark discharge voltage across a stable 0.040-inch electrode gap. The ultra-dense iridium center electrode resists spark erosion, operating efficiently in high-heat cylinder chambers without fouling, while high-tear-strength fluorosilicone boots isolate voltage spikes directly to the plug terminal, preventing spark blowout under heavy engine load.\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; margin-bottom: 20px;\"\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;\"\u003e2004-2006 Chevrolet Colorado\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;\"\u003e2.8L LK5 Vortec 2800 \/ GMT355\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;\"\u003e175 hp \/ 185 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;\"\u003eUF303, 68070492AB, 68070492AC, 68070492AD, KIN119942TOP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Chevrolet Colorado Base, LS, Z85, Z71 (2.8L L4 LK5)\u003c\/li\u003e\n  \u003cli\u003e2005 Chevrolet Colorado Base, Sport, Sport LS, Z85, Z71 (2.8L L4 LK5)\u003c\/li\u003e\n  \u003cli\u003e2006 Chevrolet Colorado Base, LS, LT, WT, Z85, Z71 (2.8L L4 LK5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GMT355 Colorado?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2006 Chevrolet Colorado equipped with the \u003cstrong\u003eLK5\u003c\/strong\u003e 2.8L inline-four engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the spark plugs pre-gapped for installation?\u003c\/strong\u003e\u003cbr\u003e Yes, the iridium plugs are preset to factory gap specifications, though inspecting tolerances prior to torquing is recommended practice.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Workhorse Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle sustained payload hauling and daily fleet abuse, this ignition kit maintains consistent flame kernel development to preserve low-end torque delivery and fuel efficiency across tough duty cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50593973534968,"sku":"DS-ECKW13Q5V","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2004-2006-2-8l-1.jpg?v=1790054862"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2007-2012-2-9l","title":"Ignition Coil and Iridium Spark Plugs for Chevrolet Colorado (2007-2012) 2.9L","description":"\u003ch2\u003eOEM-Grade Ignition Coil and Iridium Spark Plug Kit for 2007-2012 Chevrolet Colorado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Ignition Coil and Iridium Spark Plug Kit replaces degraded factory ignition components on the 2007-2012 Colorado to eliminate cylinder misfires, restore factory combustion efficiency, and stabilize rough idle.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Colorado Thermal Breakdown Problem\u003c\/h3\u003e\n\u003cp\u003eFactory coil-on-plug units on the \u003cstrong\u003eGMT355\u003c\/strong\u003e chassis operate in a demanding thermal environment alongside the cylinder head of the \u003cstrong\u003eVortec 2900 (LLV)\u003c\/strong\u003e inline-four. Over tens of thousands of thermal cycles, engine bay heat soak degrades the internal epoxy potting and copper primary windings, inducing internal dielectric breakdown, secondary resistance drift, and intermittent misfires under load (P0300–P0304). Simultaneously, factory plugs suffer electrode erosion and widening gaps, forcing fatigued coils to produce unsustainably high ionization voltages that trigger ignition blowout.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit ignition kit restores spark energy using high-dielectric epoxy housings and high-conductivity copper secondary windings engineered to suppress internal arcing and thermal breakdown. Paired with fine-wire iridium spark plugs featuring laser-welded center electrodes, this package significantly lowers required firing voltage while maintaining superior thermal conductivity and flame kernel propagation. Designed as a direct swap for OEM numbers \u003cstrong\u003e12596547\u003c\/strong\u003e, \u003cstrong\u003eUF497\u003c\/strong\u003e, and \u003cstrong\u003e12612369\u003c\/strong\u003e, this matched set ensures precise dwell-time compliance and immediate throttle response without PCM reprogramming.\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; margin-bottom: 20px;\"\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;\"\u003e2007-2012 Chevrolet Colorado\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;\"\u003e2.9L LLV I4 \/ GMT355\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;\"\u003e185 hp \/ 190 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;\"\u003e12596547, UF497, 12612369 (MPN: KIN134627TOP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007-2012 Chevrolet Colorado Base (2.9L L4 LLV)\u003c\/li\u003e\n  \u003cli\u003e2007-2012 Chevrolet Colorado LS (2.9L L4 LLV)\u003c\/li\u003e\n  \u003cli\u003e2007-2012 Chevrolet Colorado LT (2.9L L4 LLV)\u003c\/li\u003e\n  \u003cli\u003e2007-2012 Chevrolet Colorado WT (2.9L L4 LLV)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GMT355 Colorado?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2007-2012 Chevrolet Colorado equipped with the LLV 2.9L inline-four engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these iridium plugs pre-gapped for the 2.9L engine?\u003c\/strong\u003e\u003cbr\u003e Yes, the spark plugs are calibrated to factory gap specifications for out-of-the-box installation without manual adjustment.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the continuous payload and towing demands of the Colorado platform, this ignition service package resists high-vibration stress and sustained thermal loads across tough work cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50594029601016,"sku":"DS-EJ2Q6ZG96","price":85.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2007-2012-2-9l-1.jpg?v=1790056159"},{"product_id":"ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2004-2006-3-5l","title":"Ignition Coil and Iridium Spark Plugs for Chevrolet Colorado (2004-2006) 3.5L","description":"\u003ch2\u003eDirect-Fit Ignition Coil and Iridium Spark Plug Kit for 2004-2006 Chevrolet Colorado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil and iridium spark plug kit replaces aged factory coil packs and eroded plugs on the 2004-2006 Colorado to eliminate cylinder misfires, restore combustion efficiency, and stabilize idle quality.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Colorado Thermal Breakdown Problem\u003c\/h3\u003e\n\u003cp\u003eIn the \u003cstrong\u003eGMT355\u003c\/strong\u003e platform housing the \u003cstrong\u003eVortec 3500 L52\u003c\/strong\u003e inline-five, factory pencil coils reside directly above the cylinder head in deep spark plug wells. Continuous engine heat cycling causes the factory dielectric epoxy and silicone insulation to degrade, leading to secondary voltage breakdown and spark arcing. This deterioration causes intermittent hesitation, reduced power under towing loads, and classic P0300 through P0305 misfire diagnostic trouble codes. Concurrently, factory plugs suffer electrode erosion over time, which widens the spark gap and places excessive electrical resistance on the failing primary and secondary ignition windings.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis complete 5-cylinder service kit pairs direct-replacement ignition coils with high-efficiency fine-wire iridium spark plugs to re-establish high-voltage ignition delivery. Engineered with reinforced copper wire windings, thermal-resistant internal epoxy, and high-dielectric silicone boots, these coils resist voltage tracking and moisture intrusion. The accompanying iridium spark plugs feature a laser-welded fine-wire center electrode with superior thermal endurance, reducing the required firing voltage, providing stable flame kernel propagation, and shielding the coil packs from excessive resistance under high load.\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; margin-bottom: 20px;\"\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;\"\u003e2004-2006 Chevrolet Colorado\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\u003eVortec 3500 L52\u003c\/strong\u003e 3.5L I5 \/ \u003cstrong\u003eGMT355\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;\"\u003e220 hp \/ 225 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\u003eUF303\u003c\/strong\u003e, \u003cstrong\u003e19300921\u003c\/strong\u003e, \u003cstrong\u003eGN10114\u003c\/strong\u003e, \u003cstrong\u003e1788390\u003c\/strong\u003e, \u003cstrong\u003e6737200\u003c\/strong\u003e, \u003cstrong\u003eCUF303\u003c\/strong\u003e, \u003cstrong\u003e5C1392\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Chevrolet Colorado (Base, LS, Sport, Z71, Z85) 3.5L L5\u003c\/li\u003e\n  \u003cli\u003e2005 Chevrolet Colorado (Base, LS, Sport, Z71, Z85) 3.5L L5\u003c\/li\u003e\n  \u003cli\u003e2006 Chevrolet Colorado (LS, LT, WT) 3.5L L5\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GMT355 Colorado?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2006 Chevrolet Colorado equipped with the \u003cstrong\u003eVortec 3500 L52\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these iridium spark plugs require manual gapping before installation?\u003c\/strong\u003e\u003cbr\u003e No, these plugs come pre-gapped to factory specifications; attempting to adjust the gap manually can fracture the fine-wire iridium electrode.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Truck Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for daily hauling and commercial fleet duty, restoring peak spark energy to the Atlas platform recovers lost low-end torque, maintains smooth cruising efficiency, and ensures reliable cold-start ignition across demanding work cycles.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50604204589304,"sku":"DS-ET9Q86M1T","price":94.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-chevrolet-colorado-2004-2006-3-5l-1.jpg?v=1790088735"}],"url":"https:\/\/performancechiptuning.com\/collections\/chevrolet-colorado-ignition.oembed","provider":"Performance Chip Tuning","version":"1.0","type":"link"}