{"product_id":"uf413-square-ignition-coils-with-8mm-748uu-spark-plug-wires-coil","title":"UF413 Square Ignition Coils with 8mm 748UU Spark Plug Wires - Coil","description":"\u003cp\u003eIn this review of the UF413 Square Ignition Coils with 8mm 748UU Spark Plug Wires, the bottom line is simple: this kit is aimed at owners of compatible Chevy, GMC, Cadillac, Pontiac and Hummer models who need a direct plug-and-play replacement that boosts spark consistency. The reviewer found the set delivers stronger discharge energy than many factory coils and includes durable OE style wires, making it a practical choice for routine replacement or a modest performance-minded refresh. Check compatibility carefully because there are two coil body styles and choosing the wrong one is the most common error.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect plug-and-play:\u003c\/strong\u003e The kit is designed to replace factory coils without modification, which simplifies installation for most technicians and DIYers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher discharge energy:\u003c\/strong\u003e These coils provide a stronger and more consistent spark than some stock units, which can improve ignition stability under normal driving conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete set:\u003c\/strong\u003e Includes eight UF413 square ignition coils plus eight 8mm 748UU standard OE spark plug wires so the whole ignition bank is refreshed at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Coils use German copper windings wrapped in polyester rubber and wires follow OE standards for everyday durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Matches several OEM part numbers like C1511, UF413, D510C, and 5C1554 for many Chevy, GMC, Cadillac, Pontiac and Hummer applications when the square style is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for vehicle owners who know they need the square body UF413\/D510C style coils and want a full bank replacement for consistent ignition across all cylinders. It suits do-it-yourselfers who prefer plug-and-play parts and shops that service late-model GM V6 and V8 engines listed by the interchangeable part numbers.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for buyers who are unsure which coil body style their vehicle uses; there is also mixed feedback on wire quality, so customers seeking premium aftermarket wires or race-level performance should consider higher-end wire sets separately.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete 8-coil and 8-wire kit refreshes the entire ignition bank for consistent operation.\u003c\/li\u003e\n\u003cli\u003eStronger discharge energy compared with many stock coils, improving spark reliability.\u003c\/li\u003e\n\u003cli\u003eEasy installation when the correct square body style is chosen, and seller support is available by email.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo coil body styles exist (round and square), and choosing the wrong type is a common source of returns and confusion.\u003c\/li\u003e\n\u003cli\u003eSome customers reported inconsistent wire quality and occasional misfires on a small number of cylinders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSPARKWHIZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil model\u003c\/td\u003e\n\u003ctd\u003eUF413 \/ D510C (square body)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e8 ignition coils and 8 8mm 748UU spark plug wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM part numbers\u003c\/td\u003e\n\u003ctd\u003eC1511, UF413, D510C, D513A, 5C1554\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire type\u003c\/td\u003e\n\u003ctd\u003eStandard OE 8mm 748UU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eGerman copper coils wrapped in polyester rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe UF413 square coil and wire set is a sensible, cost-conscious choice for owners who confirm their vehicle needs the square style and want a full bank replacement. It offers improved ignition consistency over many stock coils and a complete wiring refresh, making it good value for routine maintenance or modest performance improvement, though buyers should inspect original coils to avoid selecting the wrong body style.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know if I need the square UF413 coils?\u003c\/strong\u003e\u003cbr\u003eCheck your original coils visually for square versus round body shape or confirm fitment using model year and OEM part numbers; the seller also advises using the year\/make\/model selection to verify compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the spark plug wires high performance?\u003c\/strong\u003e\u003cbr\u003eThe kit includes standard OE 8mm 748UU wires suitable for typical driving and replacement needs, but buyers seeking premium or race wires may prefer an upgraded separate set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I do during installation to avoid damage?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer recommends spraying silicone on the coil rubber during assembly to prevent cracking and using original tools where possible to avoid damaging components.\u003c\/p\u003e","brand":"SPARKWHIZ","offers":[{"title":"Default Title","offer_id":48261320835291,"sku":"B0BHX4VQ8M","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71lKeBx1T8L._AC_SL1500.jpg?v=1778227188","url":"https:\/\/gearmusthave.com\/products\/uf413-square-ignition-coils-with-8mm-748uu-spark-plug-wires-coil","provider":"GearMustHave","version":"1.0","type":"link"}