Description: two-way brush BEC 3A 6V ESC 40A speed controller replacement parts. Specially designed for 1:16 1:18 electric monster truck, short course truck, crawler car, rc tank truck parts. Precision balanced rotor, smoothness for best reliability and maximum RPM. Support 2-3s Lipo or 5-9s NiMH. with JST plug brush ESC speed controller replacement parts. High precision manufacturing ensures stable performance and excellent function. Specification: Material:Electronic component Size: 70x100x35mm / 2.76x3.94x1.38inch Forward:Continuous current: 40A; peak current:160A Reverse:Continuous current: 20A; peak current:80A BEC Output:3A/6V(Switch voltage regulator mode) Working Mode:One way/two way/climbing Package Includes: 1 Piece 40A Brush ESC : Please allow slight dimension difference due to different manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.