High-strength pinion gear created from tough 7075 T6 aluminum and particularly hardcoated for superior power, lightweight, and high durability. Produced on a unique gear unit, all pinions work ultra-precise enamel shaping and ultra-true running for vibration-free procedure. Fine interior threading enables easy installation. Each pinion is ok etched with all the current tooth number for quick & simple recognition. Fits GTXE automobiles.