{"product_id":"uf271-square-ignition-coils-and-spark-plugs-748ee-wires-set","title":"UF271 Square Ignition Coils and Spark Plugs \u0026 748EE Wires Set","description":"\u003cp\u003eOur review of the UF271 Square Ignition Coils and Spark Plugs \u0026amp; 748EE Wires Set finds it a practical, budget-friendly ignition repair kit for owners of compatible GM V8 trucks and SUVs. The package combines square UF271 coil packs, eight spark plugs and 8mm 748EE spark plug wires so a technician or DIYer can replace a full bank of ignition components in one go. The single biggest reason to buy is the matched set approach: coils and wires designed to work together, which reduces compatibility guesswork when you confirm your vehicle uses the SQUARE coil shape.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare coil design:\u003c\/strong\u003e Includes UF271\/D581 square ignition coils to match vehicles that use that specific coil shape and avoid fitment issues when verified in the engine bay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatched ignition components:\u003c\/strong\u003e The kit ships with coils, 8 spark plugs and 8mm 748EE wires so timing and connection integrity are restored across one bank at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable coil construction:\u003c\/strong\u003e Coils are wound with German copper and wrapped in polyester rubber for heat and vibration resistance under typical driving conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide OEM cross-reference:\u003c\/strong\u003e Lists many replacement numbers that help verify compatibility with original equipment part numbers before purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad vehicle coverage:\u003c\/strong\u003e Specified for many Chevrolet, GMC, Hummer, Savana and other GM-family models from late 1990s to mid 2000s, which is useful for older trucks and SUVs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIY mechanics and independent shops working on GM 4.8L, 5.3L and 6.0L engines that require the square UF271\/D581 coil style. It is especially useful when a full-bank ignition service is planned, because it supplies coils, wires and plugs together so components age consistently.\u003c\/p\u003e\n\u003cp\u003eOwners who are unsure about coil shape should not buy without visually confirming the square coils in their engine compartment, and drivers of newer vehicles or non-GM engines should look elsewhere for a direct-fit ignition solution.\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 kit approach restores coils, spark plugs and spark plug wires at once for consistent ignition performance.\u003c\/li\u003e\n\u003cli\u003eCoils built with copper windings and polyester rubber for durability in typical road use.\u003c\/li\u003e\n\u003cli\u003eExtensive cross-reference list makes it easier to confirm fitment against OEM numbers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnly compatible with the SQUARE UF271\/D581 coil shape, so buyers must check their engine before ordering.\u003c\/li\u003e\n\u003cli\u003eOlder vehicle coverage means not suitable for late model or non-GM engines that use different coil designs.\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\u003eUF271 \/ D581 (square)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded components\u003c\/td\u003e\n\u003ctd\u003e8 coils?8 spark plugs?8mm 748EE spark plug wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible engines\u003c\/td\u003e\n\u003ctd\u003e4.8L, 5.3L, 6.0L GM V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle coverage\u003c\/td\u003e\n\u003ctd\u003eSelected Chevrolet, GMC, Hummer, Savana, Mercruiser years (see fitment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement numbers\u003c\/td\u003e\n\u003ctd\u003e12556893, 12558693, C1208 and cross references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe UF271 Square Coil, Spark Plug and 748EE Wire Set is a sensible value for owners of older GM trucks and SUVs who need a coordinated ignition service. When the square coil shape is confirmed in the engine bay, this matched kit reduces installation guesswork and replaces multiple wear items at once, making it a good buy for DIY repair and routine maintenance.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm this fits my vehicle?\u003c\/strong\u003e\u003cbr\u003eOpen the engine compartment and visually confirm your vehicle uses square UF271\/D581 style coils; the listing is specifically for the square variant.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include all parts for a full bank replacement?\u003c\/strong\u003e\u003cbr\u003eYes, the package includes UF271 ignition coils, 8 spark plugs and 8mm 748EE spark plug wires to service a full bank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these OEM parts?\u003c\/strong\u003e\u003cbr\u003eThe kit lists many OEM cross-reference numbers to aid fitment, but the components are sold under the SPARKWHIZ brand as aftermarket replacements.\u003c\/p\u003e","brand":"SPARKWHIZ","offers":[{"title":"Default Title","offer_id":48608835240155,"sku":"B0DSZLR6L8","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71TVx_2aivL._AC_SL1500.jpg?v=1778410427","url":"https:\/\/gearmusthave.com\/products\/uf271-square-ignition-coils-and-spark-plugs-748ee-wires-set","provider":"GearMustHave","version":"1.0","type":"link"}