{"product_id":"apr-iridium-pro-spark-plug-ea888-3-4-ea855-2-ea824-heat-range-9-14mm-thread-26-5mm-reach","title":"APR Iridium Pro Spark Plug EA888.3\/4\/EA855.2\/EA824 - Heat Range 9, 14mm Thread, 26.5mm Reach","description":"Refresh your ignition system in one shot with APR Iridium Pro Spark Plugs and pair with APR Ignition Coils – engineered to work together for a stronger, more consistent spark. Each is a direct-fit upgrade designed to support smoother idle, sharper throttle response, and reliable performance under heat and load—whether you’re stock or running higher boost and power upgrades.\n14X26.5X16MM - Heat Range 9\nAlways check sizes, gap, and heat range specs before installing. Installation of the wrong length plug can cause damage to the engine. You must verify this before installing the plug.\n\u003cul\u003e\n  \u003cli\u003e152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum.\u003c\/li\u003e\n  \u003cli\u003eHeat range 9 spark plug (Similar: Bosch 3, Brisk 10, Denso 27, and NGK 9)\u003c\/li\u003e\n  \u003cli\u003eOptimized electrode design for hard to ignite fuels, such as ethanol\u003c\/li\u003e\n  \u003cli\u003eDesigned for high performance \/ tuned vehicle applications\u003c\/li\u003e\n  \u003cli\u003eCooler operating temperature than stock plugs\u003c\/li\u003e\n  \u003cli\u003eResists preignition better than stock plugs\u003c\/li\u003e\n  \u003cli\u003eAn excellent match for APR ignition coils\u003c\/li\u003e\n  \u003cli\u003eStronger than copper and platinum\u003c\/li\u003e\n  \u003cli\u003ePerfect for upgraded APR vehicles\u003c\/li\u003e\n  \u003cli\u003eLower required supplied voltage\u003c\/li\u003e\n  \u003cli\u003eNon-projected insulator design\u003c\/li\u003e\n  \u003cli\u003eThread diameter: 14mm\u003c\/li\u003e\n  \u003cli\u003eInstall Torque: 25 Nm\u003c\/li\u003e\n  \u003cli\u003eThread reach: 26.5mm\u003c\/li\u003e\n  \u003cli\u003eSeat Type: Gasket\u003c\/li\u003e\n  \u003cli\u003eMade in the EU\u003c\/li\u003e\n  \u003cli\u003eHexagon: 16mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your vehicle's ignition system with the APR EA888.3\/4\/EA855.2\/EA824 Iridium Pro Spark Plug, engineered for high-performance applications and reliable, consistent sparks. Designed to support smoother idling, sharper throttle response, and enhanced performance under heat and load conditions, this spark plug is ideal for both stock setups and vehicles with higher boost or power modifications. Its durable construction and optimized electrode design ensure optimal ignition even with challenging fuels like ethanol, making it a perfect match for APR upgraded vehicles.\u003cbr\u003eManufactured in the EU, this spark plug features a thread diameter of 14mm, a thread reach of 26.5mm, and a gasket seat type, providing a secure fit for a wide range of high-performance engines. The non-projected insulator design helps improve ignition efficiency, while the cooler operating temperature and resistance to pre-ignition give added reliability during demanding driving conditions. The spark plug’s design also supports lower voltage requirements, reducing stress on your vehicle’s ignition system. Proper installation torque of 25 Nm ensures optimal performance and safety, and the 16mm hexagon design allows for easy installation and removal.\u003cbr\u003eWhether you're upgrading your vehicle for racing, tuning, or everyday performance, the APR Iridium Pro Spark Plug offers superior durability and efficiency. It provides a significant upgrade over standard copper or platinum plugs with its 152% higher melting point, ensuring longevity and resistance to extreme heat. Compatible with APR ignition coils, this spark plug is an excellent choice for enthusiasts seeking to maximize engine responsiveness and reliability in high-stress driving conditions. Regular maintenance and proper size and gap verification are recommended to ensure optimal operation and engine health.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHigh-performance Iridium construction with a 152% higher melting point than silver\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHeat range 9 spark plug designed for demanding applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized electrode for igniting challenging fuels like ethanol\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCooler operating temperature compared to stock plugs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eResists pre-ignition, improving engine stability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePerfect match for APR ignition coils\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eLower voltage requirement for efficient ignition\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eNon-projected insulator design for better spark delivery\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSecure gasket seat type for reliable sealing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEasy installation with 16mm hexagon and specified torque\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":50978802204924,"sku":"Z1003100","price":31.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/0a1087829c1f5f30af9cd03bb7c48944L.jpg?v=1786680279","url":"https:\/\/diycustoms.store\/products\/apr-iridium-pro-spark-plug-ea888-3-4-ea855-2-ea824-heat-range-9-14mm-thread-26-5mm-reach","provider":"diycustoms.store","version":"1.0","type":"link"}