Review on Enhanced Brushless Cooling Upgrade: The Ultimate Replacement Nominal by Dave Brummet

I received this motor to replace a failed 550 motor on my AquaCraft Atlantic RC Tugboat. I use it at 12 volts which gives more torque than the old motor. The shaft is a few millimeters shorter than stock but still sticks out 1/8" beyond the U-coupling set screw. It's also cheaper than an OEM motor. For you diesel guys familiar with tow engines, I couldn't resist painting the engine tank yellow and putting a "Caterpillar 3512" sign on it.