{"product_id":"sparkwhiz-uf413-square-ignition-coil-kit-with-8mm-748uu-wires-set-of-8-german-copper","title":"SPARKWHIZ UF413 Square Ignition Coil Kit with 8mm 748UU Wires, Set of 8 — German Copper","description":"\u003cstrong\u003eSPARKWHIZ UF413 Square Ignition Coils combined with 8mm 748UU spark plug wires replace eight factory coils and wires to deliver stronger, more consistent sparks and long-lasting reliability.\u003c\/strong\u003e\n\nThese plug-and-play ignition coils are designed as a direct replacement for vehicles that require the UF413\/D510C square-body coil style and include eight OE-style 8mm 748UU spark plug wires. Built with German copper windings and polyester rubber insulation, the kit aims to improve ignition energy consistency and durability over worn factory components. Before buying, confirm that your vehicle uses the square UF413-style coils (not the round UF414\/D514A style) by checking the part numbers or comparing the physical shape of your current coils.\n\n\u003ch3\u003eHow will these coils and wires improve engine performance?\u003c\/h3\u003e\n\u003cp\u003eUpgraded coils and high-quality spark plug wires provide a steadier high-voltage path to the plugs, helping maintain a reliable spark under varied driving conditions. That steady spark can reduce misfires and restore ignition responsiveness when old coils or brittle wires begin to fail.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStronger, more consistent discharge energy than many aged OEM coils.\u003c\/li\u003e\n  \u003cli\u003eGerman copper coil windings for stable conductivity.\u003c\/li\u003e\n  \u003cli\u003e8mm OE-style wires minimize signal loss and interference.\u003c\/li\u003e\n  \u003cli\u003eDurable polyester rubber wrapping resists heat and abrasion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit fit my vehicle and how do I confirm compatibility?\u003c\/h3\u003e\n\u003cp\u003eThis set is compatible with vehicles that use the UF413 (D510C\/D513A) square-style coil; it lists multiple OEM cross-reference numbers to help match fitment. Use your year\/make\/model and the interchangeable part numbers, or visually compare your existing coils to ensure you need the square-body UF413 rather than the round UF414 style.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck OEM numbers: C1511, UF413, D510C, D513A, 5C1554, IC533, and others.\u003c\/li\u003e\n  \u003cli\u003eCompare coil shape: square-body UF413 vs round-body UF414.\u003c\/li\u003e\n  \u003cli\u003eUse the fitment selector on the product page or compare original parts directly.\u003c\/li\u003e\n  \u003cli\u003eCompatible with select Cadillac, Hummer, Chevrolet, and GMC models—verify fit before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about installation and care?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone familiar with basic ignition work, but taking a few precautions helps avoid damage and ensures a tight fit. Use a silicone spray when assembling to reduce rubber cracking and follow torque and connection guidance from the vehicle manufacturer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpray silicone on rubber parts during assembly to prevent cracking.\u003c\/li\u003e\n  \u003cli\u003eUse original tools where recommended for safe disassembly and reassembly.\u003c\/li\u003e\n  \u003cli\u003eEnsure secure electrical connections and correct wire routing to avoid chafing.\u003c\/li\u003e\n  \u003cli\u003eInspect boots and connectors for a snug, corrosion-free fit before starting the engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are these coils and wires?\u003c\/h3\u003e\n\u003cp\u003eThe UF413 coils in this kit are built for longevity with high-quality copper windings and protective polyester rubber wrapping. The included 8mm 748UU wires follow OE standards to resist heat and wear, offering reliable service across varied driving conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGerman copper windings for improved conductivity and stability.\u003c\/li\u003e\n  \u003cli\u003ePolyester rubber wrap to resist heat, oil, and abrasion.\u003c\/li\u003e\n  \u003cli\u003eOE-style wires designed for long-term flexing and vibration resistance.\u003c\/li\u003e\n  \u003cli\u003eManufactured to withstand common automotive under-hood stresses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for?\n\u003cp\u003eThis kit suits DIY mechanics, professional technicians, and vehicle owners who need a full eight-coil replacement with matching spark plug wires. It’s ideal for cars and trucks that specifically require the UF413 square-body coil form factor and want a durable, OEM-compatible upgrade to restore ignition reliability without complicated modifications.\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: Are these UF413 coils compatible with UF414 round coils?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. UF413 are square-body coils; UF414 are round. Compare shapes or part numbers to confirm which your vehicle needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do the 8mm 748UU wires require special tools to install?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special tools are required, but using original tools and silicone spray during assembly is recommended to protect rubber parts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SPARKWHIZ","offers":[{"title":"Default Title","offer_id":48081554145438,"sku":"B0BHX4VQ8M","price":154.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sparkwhiz-uf413-front-view.jpg?v=1785807897","url":"https:\/\/northtrailauto.ca\/products\/sparkwhiz-uf413-square-ignition-coil-kit-with-8mm-748uu-wires-set-of-8-german-copper","provider":"North Trail Auto","version":"1.0","type":"link"}