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APR EA888.3/4/EA855.2/EA824 Iridium Pro Spark Plug - Heat Range 9 - 14mm x 26.5mm x 16mm - SINGLE - Z1003100
$31.95
$35.94
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. Always 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. Features & Benefits 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum. Heat range 9 spark plug (Similar: Bosch 3, Brisk 10, Denso 27, and NGK 9) Optimized electrode design for hard to ignite fuels, such as ethanol Designed for high performance / tuned vehicle applications Cooler operating temperature than stock plugs Resists preignition better than stock plugs An excellent match for APR ignition coils Stronger than copper and platinum Perfect for upgraded APR vehicles Lower required supplied voltage Non-projected insulator design Thread diameter: 14mm Install Torque: 25 Nm Thread reach: 26.5mm Seat Type: Gasket Made in the EU Hexagon: 16mm Downloads & ResourcesVideo File...