This is a 540-J size Stock Motor from Tamiya.
540 size, bushing construction, ideal for basic radio control vehicle
use
Yellow and Green motor wires with bullet connectors pre-installed
One 540-J size Stock Motor from Tamiya
Voltage Range: 7.2V-8.4V
RPM at Best Efficiency: 14500 RPM @ 7.2V
Torque at Best Efficiency: 255g-cm @ 7.2V
Current Consumption at Best Efficiency: 7.9A @ 7.2V