Product review (5 stars): Overhaul your dishwasher yourself
This replacement motor fits numerous GE dishwasher models made over the years, and it was an exact-fit replacement for my nine year old GE Nautilus' failing motor.  If you've correctly diagnosed your problem then this assembly should fix it without a hitch.

Installation was simple in my case, since the dishwasher was a relatively newer model.  If you have an older model with a different motor assembly this kit includes numerous fittings, adapters, and wires to attach it to just about any compatible GE or GE-made model from the last thirty years.  Just follow the instructions carefully and you shouldn't have any trouble.

My original motor was beginning to fail, requiring a "jump start" with one's finger to get it spinning.  After pulling the dishwasher from under the counter and removing the old motor assembly and hoses it was a simple matter of putting the new assembly into place and re-attaching the fittings.  Make sure you get everything back in the original places and that all connections are tight to prevent leaks, and you should be up and running again.

I've found the new motor to be much quieter than the old one, and the dishwasher has been performing flawlessly since I installed it.  So if you know your motor is bad, by all means save yourself the price of a service technician and tackle this job yourself.  It really isn't very hard if you take your time and follow the directions, and this replacement motor seems to be well made and quiet.