Yes, that is the motor. We are reversing the shaft and there is no pesky E-clip only two screws to loosen and tighten. Shaft is fairly loose. Seems like a couple whacks with the handle of a screw driver while holding it in my hand is all it takes unlike the Turnigy 35-30A.
Shaft is 3mm so everything from the red motor transfers over no problem and the motor mounts on the Assassin kit supplied motor mount.
The motor is being used on 4 different Assassins. No burn out motors or ESCs. We broke a motor with a loose set screw hiding in the magnets and windings and also a bent shaft after a hard landing.
At first start up the motor with a fresh 3S battery puts out 250 watts with the 7X6 prop.
The Turnigy 28-26, that has been suggested as a replacement to the red motor-FC 28-12, will burn up if you try to use the 7X6 prop. Of course the 28-26 is listed as a 140 watt motor and the Tower Pro 2409-12D is listed as a 200 watt motor on the Hobby King website.