{"product_id":"uf651-ignition-coil-double-iridium-spark-plug-9723-compatible","title":"UF651 Ignition Coil \u0026 Double Iridium Spark Plug 9723 Compatible","description":"\u003cp\u003eIn this review the UF651 Ignition Coil \u0026amp; Double Iridium Spark Plug 9723 compatible kit is assessed for drivers who need a straightforward replacement for Hyundai and Kia 1.8L and 2.0L engines. The review's bottom line: this kit is for owners who want a like-for-like ignition solution built to OE form and fit, offering improved cold starts and potential fuel economy gains. The set includes four ignition coil packs and four double iridium spark plugs, and the single biggest reason to buy is its clear focus on compatibility and long-life spark plugs that aim to reduce misfires and rough idle.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect compatibility:\u003c\/strong\u003e The kit is designed to fit a wide range of Hyundai and Kia 1.8L and 2.0L models, reducing guesswork at purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble iridium spark plugs:\u003c\/strong\u003e The spark plugs use double iridium electrodes for longer life and consistent spark delivery, claimed to last up to 100000 kilometers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE-style ignition coils:\u003c\/strong\u003e Coils match or improve on OE design with advanced thermoplastic connector and stainless-steel spring for reliable high-voltage transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced radio interference:\u003c\/strong\u003e Internal ferrite noise suppressor in the coil helps prevent radiofrequency interference during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete pack:\u003c\/strong\u003e Includes four ignition coil packs and four spark plugs, providing a full-bank replacement for many common engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter-sales support:\u003c\/strong\u003e The seller offers 24-hour customer service and a one year product service period for installation or quality questions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is best for Hyundai and Kia owners with 1.8L and 2.0L L4 engines who need a full bank replacement of ignition coils and spark plugs and prefer parts that align closely with OE part numbers such as UF651 and NGK 9723. It also suits DIYers who want relatively quick installation and the potential for smoother idle and better fuel economy.\u003c\/p\u003e\u003cp\u003eIt is less appropriate for vehicles outside the listed model years or for owners who require factory-branded original equipment; shoppers should confirm their vehicle connector type (2-pin or 4-pin in some 2017-2018 models) by checking the product images and part numbers before ordering.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood fit and build quality that many customers described as easy to install and matching OE fit.\u003c\/li\u003e\n\u003cli\u003eDouble iridium plugs provide longer service life and consistent spark for improved cold-start performance.\u003c\/li\u003e\n\u003cli\u003eComplete kit of four coils and four spark plugs gives a convenient one-purchase repair solution.\u003c\/li\u003e\n\u003cli\u003eAfter-sales support and one year product service provide extra peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMixed feedback on long-term durability of some spark plugs means some buyers may prefer OEM-branded plugs.\u003c\/li\u003e\n\u003cli\u003eCompatibility requires careful checking of connector pin count for certain 2017-2018 vehicles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded parts\u003c\/td\u003e\n\u003ctd\u003eIgnition Coil Packs x4, Double Iridium Spark Plug x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary compatible engines\u003c\/td\u003e\n\u003ctd\u003e1.8L L4 and 2.0L L4 Hyundai\/Kia models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM reference numbers\u003c\/td\u003e\n\u003ctd\u003eUF651, NGK 9723, 27300-2E000, 18846-11070\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark plug type\u003c\/td\u003e\n\u003ctd\u003eDouble iridium, claimed up to 100000 km life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil features\u003c\/td\u003e\n\u003ctd\u003eStainless-steel spring, ferrite noise suppressor, thermoplastic connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService \u0026amp; support\u003c\/td\u003e\n\u003ctd\u003e24-hour customer service, 1 year product service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe UF651 ignition coil and double iridium spark plug kit is a practical, value-minded replacement for owners of Hyundai and Kia 1.8L and 2.0L models who need a full-bank ignition refresh. It delivers reliable fit, potential fuel efficiency improvements, and long-life plugs while including basic support from the seller, making it a sensible choice for DIY maintenance and routine repair work.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this kit fit my 2016 Elantra?\u003c\/strong\u003e\u003cbr\u003eCheck the compatibility list and engine size; the kit covers 2014-2016 Elantra SE and other Elantra variants with 1.8L engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the spark plugs OEM-grade?\u003c\/strong\u003e\u003cbr\u003eThe plugs are double iridium and reference NGK 9723 among other cross numbers; they are designed for long life but some customers report mixed durability impressions compared to OEM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include installation instructions?\u003c\/strong\u003e\u003cbr\u003eThe package does not include an instruction manual, but customers noted the parts are generally easy to install for those with basic mechanical experience.\u003c\/p\u003e","brand":"X4XZ","offers":[{"title":"Default Title","offer_id":48617888350427,"sku":"B0CB9THKK7","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61Dm27ayHoL._AC_SL1500.jpg?v=1778428412","url":"https:\/\/gearmusthave.com\/products\/uf651-ignition-coil-double-iridium-spark-plug-9723-compatible","provider":"GearMustHave","version":"1.0","type":"link"}