I'm pretty sure that it was an SG-2100, so I ordered a replacement as a birthday present to myself. The upside is that I have a box of usable spare parts (motor, gears, etc) if this one craps out after the warranty is up. Another nice this is that I didn't remove the mount from the pole, or the shaft from the dish, so I can just attach the dish to the new motor, and mount the motor to the old marks. In a perfect world (I WANT A PERFECT WORLD), that should be the end of it and happiness will reign supreme again.