High-strength pinion gear made from tough 7075 T6 aluminum and particularly hardcoated for superior power, lightweight, and high durability. Produced on a distinctive gear product, all pinions work ultra-precise enamel shaping and ultra-true operating for vibration-free procedure. Fine interior threading enables effortless installation. Each pinion is ok etched with the enamel number for quick & effortless recognition. Fits GTXE cars.