{"product_id":"apr-ea888-3-4-ea855-2-ea824-iridium-pro-spark-plug-heat-range-9-14mm-x-26-5mm-x-16mm-single","title":"APR EA888.3\/4\/EA855.2\/EA824 Iridium Pro Spark Plug - Heat Range 9 - 14mm x 26.5mm x 16mm - SINGLE","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\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nCarb Acknowledgement Required: false\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Y\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nRegular Stock: t\u003cbr\u003e\nUnits Per Sku: 1","brand":"APR","offers":[{"title":"Default Title","offer_id":49301609971931,"sku":"aprZ1003100","price":31.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/8559\/1003\/files\/0a1087829c1f5f30af9cd03bb7c48944L.jpg?v=1789234818","url":"https:\/\/hnbperformance.com\/products\/apr-ea888-3-4-ea855-2-ea824-iridium-pro-spark-plug-heat-range-9-14mm-x-26-5mm-x-16mm-single","provider":"Hellnback Offroad \u0026 Performance","version":"1.0","type":"link"}