{"product_id":"uf491-ignition-coils-spark-plugs-tune-up-kit-4-pack-size-uf491-spark-plugs-1","title":"UF491 Ignition Coils \u0026 Spark Plugs Tune Up Kit, 4 Pack - size: UF491 \u0026 Spark Plugs","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e[Tailored Powertrain Alignment] Restore the original factory operating performance of your classic powertrain with this matching 8-piece maintenance bundle. Tailored exclusively for GM Ecotec 2.4L naturally aspirated inline-four (L4) engine blocks, this direct-fit mechanical combination replaces standard UF491, 12578224, and D517A specifications perfectly.\u003c\/li\u003e\n\u003cli\u003e[Engine Shaking Technical Fix] Addresses vehicle rough idling, hard starting, and structural engine shaking common in high-mileage daily commuting or long-distance highway driving. This technical tune-up package helps clear persistent dashboard check engine alerts triggered by cylinder energy distribution delays, ensuring smooth linear velocity.\u003c\/li\u003e\n\u003cli\u003e[Heavy-Duty Copper Elements] The advanced induction housings feature high-purity internal copper wire components encased in a solid dielectric compound core. This specialized physical build provides robust thermal endurance under daily driving stress, ensuring consistent electrical paths with 0.42ohms primary resistance and 8.2KΩ secondary resistance without any chemical layers.\u003c\/li\u003e\n\u003cli\u003e[Factory Pre-Gapped Iridium Tips] The included spark plugs feature premium dual iridium core metallurgy tips, sustaining a continuous physical path for continuous high-voltage delivery. Factory pre-gapped to standard original vehicle dimensions to save installation time, ensuring proper mechanical clearance inside the cylinder.\u003c\/li\u003e\n\u003cli\u003e[Complete Loop Refresh] Prevent individual component aging mismatch by renewing your vehicle's entire ignition electrical loop at once. Backed by a full 12-month quality commitment, this out-of-the-box combination serves as a highly reliable asset to extend the dependable service life of classic models like Cavalier, Grand Am, and Ion for DIY garage specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e HOTUCAX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Car\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 8 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Highlight:\u003c\/strong\u003e Compatible with Chevy Equinox Buick Regal GMC Terrain Saturn 2.4L L4, Replace 12578224\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e HOTUCAX\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOTUCAX","offers":[{"title":"Default Title","offer_id":50473500049648,"sku":"B0GBWCP21Q-size-uf491-spark-plugs","price":132.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/8464\/5360\/files\/51-TKR7lPoL_2b2181d1-e264-4f53-af3b-e90c35ac22f8.jpg?v=1789606475","url":"https:\/\/wrenchvanta.com\/products\/uf491-ignition-coils-spark-plugs-tune-up-kit-4-pack-size-uf491-spark-plugs-1","provider":"WrenchVanta","version":"1.0","type":"link"}