High-strength pinion gear created from tough 7075 T6 aluminum and specially hardcoated for superior strength, light weight, and high durability. Developed on a unique gear machine, all pinions feature ultra-precise enamel shaping and ultra-true operating for vibration-free operation. Fine internal threading allows simple installation. Each pinion is fine etched because of the tooth number for quick & easy recognition. Fits GTXE automobiles.