Genuine HPI quality spare part for easy maintenance and repairs.Fits right into all HPI electric cars and trucks! The lower the number of turns, the more powerful the motor is - this motor is much more powerful and the Saturn 27T and 20T motors!Note: Before purchasing this motor, you must make sure that your electronic speed controller (ESC) is capable of handling motors as powerful as 15-turn motors. ESCs that are not rated for powerful motors will be damaged and will need to be replaced. The #72341 SC-15 Electronic Speed Control is able to power 15-turn motors, however the #340 EN-1 is not.