{"product_id":"trq-iridium-spark-plugs-tune-up-ignition-kit-12-piece-set-v12-fit","title":"TRQ Iridium Spark Plugs Tune Up Ignition Kit 12 Piece Set - V12 Fit","description":"\u003cp\u003eIn this review the TRQ Iridium Spark Plugs 12 piece ignition kit is judged on fit, longevity and value for owners of late 20th century Jaguar V12 cars. It is aimed at DIY mechanics and professional shops that need a direct fit, vehicle specific tune-up kit for 1982-1996 Jaguar XJS and XJ12 models. The single biggest reason to buy is the combination of an iridium tip rated for longer life and exact OE replacement fitment that removes fit guesswork for these older V12 engines.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fit:\u003c\/strong\u003e Each plug is made to match OE specifications so installation is straightforward on compatible Jaguar V12 engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIridium Tip:\u003c\/strong\u003e The iridium tip is designed to provide longer service life than platinum alternatives, helping maintain ignition performance for many miles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e The set includes 12 spark plugs so a full V12 tune-up is possible without buying individual parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Suppression:\u003c\/strong\u003e Built-in resistor design reduces electromagnetic interference that can affect radio or sensitive electronics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Range Tested:\u003c\/strong\u003e Manufactured to specific heat range standards to support reliable combustion and stable idle under normal driving.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis kit is best for owners and mechanics working on 1982-1996 Jaguar V12 cars (including XJS and XJ12 models) who want a straightforward, OE-replacement style tune-up. It suits anyone who prefers replacing all plugs at once with a matched set designed to the vehicle reference numbers provided in the listing.\u003c\/p\u003e\u003cp\u003eIt is less suitable for drivers of non-V12 Jaguars or other makes, and for those who require specialty racing or custom electrode designs outside the specified heat ranges. If you need a different plug gap, type or non-iridium material, choose a product made for those specific needs.\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 quality and reliable fit for the listed Jaguar V12 engines, making installation simple for DIYers and shops.\u003c\/li\u003e\n\u003cli\u003eIridium tip offers extended life and can help sustain fuel efficiency over time.\u003c\/li\u003e\n\u003cli\u003eComplete 12-piece kit provides value by covering a full V12 tune-up in one purchase.\u003c\/li\u003e\n\u003cli\u003eResistor built in to reduce electromagnetic interference and support stable electronics operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome owners report mixed performance results on initial fitment, so proper gap checking and installation technique remain important.\u003c\/li\u003e\n\u003cli\u003eCompatible only with the specified Jaguar models, so buyers must verify fitment before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e12 Piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpark Plug Type\u003c\/td\u003e\n\u003ctd\u003eIridium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHex Size\u003c\/td\u003e\n\u003ctd\u003e16 MM \/ 5\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Engines\u003c\/td\u003e\n\u003ctd\u003eJaguar V12 5.3L and 6.0L (1982-1996 models listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE Reference Numbers\u003c\/td\u003e\n\u003ctd\u003eIncludes multiple OE references such as 12571165, 12571533, 19185432\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003eResistor included; heat range tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe TRQ Iridium 12-piece kit is a practical, cost-effective choice for Jaguar V12 owners who want an OE-style replacement set that supports longer service life and consistent fit. It offers clear value as a single-purchase tune-up option, though careful installation and fitment verification are advised to ensure optimum performance.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these plugs fit my V12 Jaguar?\u003c\/strong\u003e\u003cbr\u003eThey are intended for the listed 1982-1996 XJS and XJ12 V12 models; always check the vehicle specific fitment information in the product listing before purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long will the iridium tips last?\u003c\/strong\u003e\u003cbr\u003eTRQ states iridium tips provide longer life than platinum and are designed to deliver extended service life under normal driving conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to gap these plugs before installation?\u003c\/strong\u003e\u003cbr\u003ePlugs are manufactured to OE specs but it is good practice to verify and adjust the gap during installation for best ignition performance.\u003c\/p\u003e","brand":"TRQ","offers":[{"title":"Default Title","offer_id":48250022887643,"sku":"B09HNL7G57","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81JtWG1ATjL._AC_SL1500.jpg?v=1771083200","url":"https:\/\/gearmusthave.com\/products\/trq-iridium-spark-plugs-tune-up-ignition-kit-12-piece-set-v12-fit","provider":"GearMustHave","version":"1.0","type":"link"}