To further complicate things, the AndyMark "Motor" (AM-0912) linked above is not the "Motor" on the AndyMark Gearmotor combo.
Aye...
It looks like a Banebots
http://banebots.com/pc/MOTOR-BRUSH/M5-RS775-12 motor is the actual one (based on the specs) that is pre-installed on the Andymark Gearmotor.
That ALSO said, the Andymark "Motor" (AM-0912) can be also be used in place of the Banebots motor on the AM-0914 assembly.
I've hypothesized this by reading the motor stats & am waiting for someone to disprove this theory... Any takers?