This listing is for a brand new Traxxas Velineon VXL-3s waterproof brushless motor and ESC for the Slash 4×4, Rustler 37076, and Slash 58024 models. The power source for this motor is electric, and it is a high-quality motor that is perfect for any Traxxas vehicle. This motor is a great upgrade from a stock brushed motor and will provide more power and speed. The motor is designed for a 1:10 scale and is a perfect fit for Traxxas vehicles. The part number for this motor is 3351R, and it is an excellent replacement for any damaged or worn-out motor. The ESC is also waterproof, which means that you can take your Traxxas vehicle through water and not worry about damaging the motor or ESC.