High-strength pinion gear made from tough 7075 T6 aluminum and specially hardcoated for superior energy, light-weight, and high durability. Produced on an original gear unit, 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 with the enamel volume for fast & easy recognition. Fits GTXE cars.