The Traxxas 4996 Idler Gear Steel 16-T and Hardware TRX4996 is a high-quality replacement part designed specifically for Traxxas RC model vehicles. This steel idler gear is compatible with a 1:6 scale and comes with the necessary hardware for easy installation. Perfect for hobbyists looking to maintain or upgrade their chassis, drivetrain, and wheels, this product ensures smooth transmission and reliable performance for a seamless racing experience.