RS390 Toy Gearbox Universal Electric Motor Drive Engine 6V/12V 12000 20000RPM for Kids Car Replacement Model Building Motors(6V 18000RPM)

This is a high-qualIty electric gearbox for children's cars. It is suitable for the modification of cars, remote control cars and motorcycles, ATVs, go-karts, children's cars, etc. The intermediate gear is made of metal for durability and low noise. The higher the motor speed of the same model, the faster the speed. The RS550 drive engine uses high-strength plastic plates and high-quality motors. Please confirm that the motor model matches the toy car you need to modify before purchasing. The gearbox has a wide range of applications, reasonable design, low noise, and easy replacement and installation. You can choose from 2 different voltages and 4 different speeds to create your ideal toy for your child.