High-strength pinion gear created from tough 7075 T6 aluminum and especially hardcoated for superior energy, lightweight, and high durability. Developed on a specific gear product, all pinions work ultra-precise enamel shaping and ultra-true operating for vibration-free procedure. Fine inside threading permits effortless installation. Each pinion is fine etched due to enamel volume for fast & effortless recognition. Fits GTXE automobiles.