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