{"product_id":"uf247-ignition-coils-and-4503-spark-plugs-compatible-with-toyota","title":"UF247 Ignition Coils and 4503 Spark Plugs Compatible with Toyota","description":"\u003cp\u003eOur review of the UF247 Ignition Coils and 4503 Spark Plugs looks at this paired replacement kit for 1.8L four-cylinder engines. The bottom line: this kit is best for owners of Toyota Celica, Corolla, Matrix, MR2 Spyder, Pontiac Vibe and Chevrolet Prizm who need a straightforward, OE-level coil and iridium spark plug swap that restores reliable starting and reduces misfires. It stands out because the coils use heavy-duty materials and the plugs use an iridium electrode, which together deliver improved cold-start performance and smooth running without a high price or complicated installation.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect fitment:\u003c\/strong\u003e Designed for multiple 1.8L L4 models so buyers can expect a direct replacement for original coil packs and spark plugs without major modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable coil construction:\u003c\/strong\u003e Coil packs use silicon steel, Japan-imported rubber and Germany-varnished wire to resist heat and extend service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIridium spark plugs:\u003c\/strong\u003e The 4503 spark plugs use an iridium electrode and specialized ceramic for quicker starts and responsive acceleration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE-level compatibility:\u003c\/strong\u003e Listed to match several OE numbers so mechanics can verify fit and avoid ordering the wrong part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMisfire prevention:\u003c\/strong\u003e Built to avoid misfire after testing and to maintain smooth idle and fuel economy over many miles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIYers and independent shops replacing worn ignition coils and plugs on Toyota Celica (2000-2005), Corolla (1999-2008), Matrix (2003-2008), MR2 Spyder (2000-2005) and companion models Pontiac Vibe and Chevrolet Prizm with the 1.8L L4 engine. It is especially appropriate for owners who want a cost-effective alternative to dealer parts while keeping OE-level durability and materials.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include drivers with engines outside the listed model years or non-1.8L engines, and anyone who requires factory-branded parts for warranty or dealership service reasons. Also confirm OE cross-reference numbers before ordering to ensure a proper electrical connector match.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eQuality materials in coils help resist heat and provide long service life.\u003c\/li\u003e\n\u003cli\u003eIridium plugs offer improved cold starts and stronger throttle response.\u003c\/li\u003e\n\u003cli\u003eGenerally straightforward installation and good value compared to OEM pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users reported occasional issues with plug connector fit, so OE verification is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eIgnition coils and spark plugs kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible engines\u003c\/td\u003e\n\u003ctd\u003e1.8L L4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment highlights\u003c\/td\u003e\n\u003ctd\u003eToyota Celica, Corolla, Matrix, MR2 Spyder; Pontiac Vibe; Chevrolet Prizm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark plug type\u003c\/td\u003e\n\u003ctd\u003eIridium electrode, ceramic insulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil materials\u003c\/td\u003e\n\u003ctd\u003eSilicon steel, Japan-imported rubber, Germany-varnished wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE cross references\u003c\/td\u003e\n\u003ctd\u003eUF247, UF315, C1249 and other listed OE numbers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe UF247 coils and 4503 iridium spark plugs are a sensible replacement package for owners of compatible 1.8L Toyota-family vehicles who want reliable starting, fewer misfires and durable coil construction at a competitive price. Confirm OE fitment for the electrical connector before ordering, but for the right models this kit restores drivability and offers strong value compared with dealer parts.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these coils and plugs fit my Corolla?\u003c\/strong\u003e\u003cbr\u003eThey fit Corolla models with the 1.8L L4 listed in the product fitment (1999-2008); verify OE cross numbers to be certain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the spark plugs a direct replacement?\u003c\/strong\u003e\u003cbr\u003eYes, the 4503 plugs use an iridium electrode and are intended as direct replacements for the listed OE numbers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long will the coils last?\u003c\/strong\u003e\u003cbr\u003eCoils are built with durable materials and are reported to perform well beyond initial miles; regular inspection is still recommended.\u003c\/p\u003e","brand":"TAUXMZ","offers":[{"title":"Default Title","offer_id":48202390700251,"sku":"B0DP29GSXQ","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61vKHUyPovL._AC_SL1500.jpg?v=1770226535","url":"https:\/\/gearmusthave.com\/products\/uf247-ignition-coils-and-4503-spark-plugs-compatible-with-toyota","provider":"GearMustHave","version":"1.0","type":"link"}