{"product_id":"eccpp-ignition-coil-and-iridium-spark-plug-kit-for-buick-regal-cadillac-ats-uf680-94489-set-of-4-for-improved-start-idle","title":"ECCPP Ignition Coil and Iridium Spark Plug Kit for Buick Regal \u0026 Cadillac ATS - UF680\/94489, Set of 4 for Improved Start \u0026 Idle","description":"\u003cp\u003e\u003cstrong\u003eThe ECCPP UF680 \u0026amp; 94489 kit is a four-cylinder ignition coil and iridium spark plug set designed to restore reliable spark and smoother engine performance for compatible Buick and Cadillac models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete replacement kit bundles four ignition coils with four iridium-tipped spark plugs engineered to meet or exceed original equipment specifications. It’s intended for vehicles such as the Buick Regal (2014–2018 variants) and Cadillac ATS (2013–2016) that use the UF680\/94489 OEM fitment numbers. Each component combines corrosion-resistant materials and high-dielectric epoxy to deliver consistent spark delivery and long service life.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these coils and plugs affect engine starting and idle?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn coils and spark plugs from a matched kit helps restore reliable cold starts and steadier idle by delivering consistent ignition energy to each cylinder. The iridium plugs require less voltage to ignite the air–fuel mixture, while the upgraded coils provide a stronger, more stable spark.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores reliable cold starts and smoother low-RPM idle\u003c\/li\u003e\n  \u003cli\u003eReduces misfires and hesitation under light load\u003c\/li\u003e\n  \u003cli\u003eDesigned to match factory timing and firing requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit improve fuel economy or reduce engine warnings?\u003c\/h3\u003e\n\u003cp\u003eWhile outcomes vary by vehicle condition, fresh coils and iridium plugs can help reduce misfire-related fuel waste and lower the chance of check-engine warnings tied to ignition faults. They don’t change engine tuning but can return fuel use closer to factory levels if ignition degradation was present.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHelps prevent misfire codes caused by weak spark\u003c\/li\u003e\n  \u003cli\u003eCan reduce fuel loss from incomplete combustion\u003c\/li\u003e\n  \u003cli\u003eCompatible with OEM sensors and onboard diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat build quality and materials are used in this ECCPP kit?\u003c\/h3\u003e\n\u003cp\u003eThe set uses high-conductivity copper windings inside coils, high-dielectric epoxy potting for insulation, and iridium-tipped spark plugs for durability and consistent spark performance. Corrosion-resistant connectors and precision terminals aim to mirror OE fit and electrical connectivity for long-term reliability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-conductive copper core and epoxy encapsulation in coils\u003c\/li\u003e\n  \u003cli\u003eIridium center electrode for longer plug life and stable spark\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant electrical connectors and exact-fit terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know this set fits my vehicle?\u003c\/h3\u003e\n\u003cp\u003eThis kit is made to replace OEM part numbers including UF680 and 94489 and lists compatibility for specific Buick Regal and Cadillac ATS model years with 2.0L or 2.5L L4 engines. Always cross-check with your vehicle’s OEM part numbers or VIN parts lookup before purchase to confirm fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEM numbers like UF680, 12652405, 12654078, 12687140, and others\u003c\/li\u003e\n  \u003cli\u003eSpecified for Buick Regal 2014–2018 and Cadillac ATS 2013–2016 2.0L\/2.5L L4 variants\u003c\/li\u003e\n  \u003cli\u003eVerify with shop manual or VIN-based parts search for final confirmation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers and independent mechanics who need a single, matched ignition solution for a four-cylinder Buick Regal or Cadillac ATS seeking to address misfires, rough idle, hard starts, or to perform routine ignition maintenance. The ECCPP kit is aimed at owners who prefer aftermarket parts built to factory tolerances, offering an affordable route to restore engine smoothness without reprogramming or additional tuning.\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: Do these coils and plugs fit my Buick Regal 2014 with 2.0L engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this kit lists compatibility with Buick Regal 2014 2.0L L4, but verify OEM part numbers or VIN fitment to be certain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Should I replace coils and plugs together?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—replacing both together ensures matched performance and reduces the chance of early misfires or uneven cylinder operation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ECCPP","offers":[{"title":"Default Title","offer_id":48081307664542,"sku":"B0C7CLDHD7","price":91.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/eccpp-front-set-coils-plugs.jpg?v=1785799113","url":"https:\/\/northtrailauto.ca\/products\/eccpp-ignition-coil-and-iridium-spark-plug-kit-for-buick-regal-cadillac-ats-uf680-94489-set-of-4-for-improved-start-idle","provider":"North Trail Auto","version":"1.0","type":"link"}