{"product_id":"gdukop-ignition-coil-pack-and-iridium-spark-plug-kit-for-5-7l-hemi-v8-set-of-8-coils-16-iridium-plugs-56029129aa-fit","title":"GDUKOP Ignition Coil Pack and Iridium Spark Plug Kit for 5.7L HEMI V8 — Set of 8 Coils + 16 Iridium Plugs (56029129AA Fit)","description":"\u003cp\u003e\u003cstrong\u003eGDUKOP UF504 set combines eight direct-fit ignition coil packs with sixteen iridium spark plugs engineered to replace part number 56029129AA for 5.7L V8 Chrysler, Dodge, Jeep and Ram models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit is designed as a full ignition service package for 5.7L HEMI V8 engines, providing both the coil packs and long-life iridium plugs needed to restore reliable spark delivery. Each component follows OE-style dimensions and electrical characteristics so they plug into the factory harness and sit in the same position as the originals. The set helps simplify maintenance by replacing all coils and plugs at once, reducing troubleshooting time and bringing ignition components to a common service life.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engines will this UF504 kit fit?\u003c\/h3\u003e\n\u003cp\u003eThe GDUKOP kit is intended for multiple Chrysler FCA vehicles equipped with the 5.7L V8 (HEMI) engine from model years roughly 2009–2020. Fitment covers popular Dodge, Chrysler, Jeep and Ram applications where the UF504\/C1526 style coil and the specified spark plug reach are used. Always verify compatibility with your VIN or compare OE part numbers before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models include Dodge Challenger, Charger, Durango (5.7L V8), and Ram platforms listed in fitment.\u003c\/li\u003e\n  \u003cli\u003eChrysler 300 and Aspen entries that use the 5.7L V8 are included.\u003c\/li\u003e\n  \u003cli\u003eJeep Commander and Grand Cherokee 5.7L V8 applications are supported.\u003c\/li\u003e\n  \u003cli\u003eCross-reference OE numbers: UF504, C1526, 5C1569, 5602129AA.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow can this ignition kit affect engine performance and drivability?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn coils and plugs can restore consistent firing and reduce misfires, helping the engine run smoother and respond better to throttle input. Improved spark quality often translates to steadier idle, reduced stumbling under load, and more predictable acceleration. The iridium plugs are chosen for stable spark and longer service intervals compared with standard electrodes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStronger, more consistent spark helps reduce misfires and rough idle.\u003c\/li\u003e\n  \u003cli\u003eImproved throttle response and smoother acceleration under load.\u003c\/li\u003e\n  \u003cli\u003eIridium electrodes extend plug life and maintain ignitability longer.\u003c\/li\u003e\n  \u003cli\u003eReplacing full set avoids mixing new and old components that cause uneven performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the build quality and durability features of the coils and plugs?\u003c\/h3\u003e\n\u003cp\u003eGDUKOP coil packs are manufactured to match OE electrical characteristics and include robust housings to resist heat and vibration common in V8 engine bays. The included iridium spark plugs have fine-point electrodes for reliable ignition and lower erosion rates than conventional plugs. Together they are selected to withstand typical thermal cycling and engine vibration in daily driving and towing conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoil housings designed for heat and vibration resistance in engine compartments.\u003c\/li\u003e\n  \u003cli\u003eIridium center electrodes for superior hardness and slower wear.\u003c\/li\u003e\n  \u003cli\u003eOE-style connectors and boot lengths for correct fitment and clearance.\u003c\/li\u003e\n  \u003cli\u003eComplete set approach reduces need for immediate follow-up replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and maintenance when replacing all coils and plugs?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires basic hand tools, torque wrench for spark plugs, and care to avoid cross-threading or damaging boots. Work methodically one cylinder at a time to preserve firing order and prevent dropped parts. If the vehicle has persistent misfire codes after replacement, check wiring connectors, ignition module inputs, and fuel or compression issues as other causes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTorque spark plugs to the manufacturer’s recommended specification.\u003c\/li\u003e\n  \u003cli\u003eReplace one cylinder at a time to keep spark plug wires and routing correct.\u003c\/li\u003e\n  \u003cli\u003eInspect coil connectors and wiring harness for corrosion or damage before installing new coils.\u003c\/li\u003e\n  \u003cli\u003eScan for engine codes post-install to confirm resolution of misfires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The GDUKOP UF504 ignition coil and 16 iridium plug set is aimed at owners and professional technicians maintaining 5.7L V8 Dodge, Chrysler, Jeep and Ram trucks and SUVs who prefer a full-service ignition refresh. It suits drivers experiencing misfires, rough idle, or uneven acceleration, and anyone performing scheduled ignition maintenance to restore reliable starting and consistent engine performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit replace OEM part 56029129AA?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The GDUKOP UF504 kit is designed to replace OE numbers including 56029129AA and compatible UF504\/C1526 variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Should I change all coils and plugs at once?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replacing the full set avoids mixed-age components and helps ensure uniform performance and longer, predictable service intervals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GDUKOP","offers":[{"title":"Default Title","offer_id":48080599646366,"sku":"B0F9NYKGZ1","price":190.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gdukop-front-packaging-uf504-coil-and-plug-set.jpg?v=1785782812","url":"https:\/\/northtrailauto.ca\/products\/gdukop-ignition-coil-pack-and-iridium-spark-plug-kit-for-5-7l-hemi-v8-set-of-8-coils-16-iridium-plugs-56029129aa-fit","provider":"North Trail Auto","version":"1.0","type":"link"}