trainstar replacement motor

hi I am after a new replacement motor for trainstar tough trainer I seen the b4023
you have listed but it has longer shaft with thread , and the one with the kit has short shaft and adapter for prop https://www.hobbyking.com/hobbyking/store/44927D4023_850_Out_Runner_Motor_AU_Warehouse_.html

will this one fit and do I need to get any adaptor if it does .
cheers