Product review (5 stars): Replacement was a match for what came out. Working great now
Yes, solved the post wash loud humm from my GE dishwasher. Getting the dishwasher door facade off to get to the motor was relatively easy, and getting to the plastic mount I had to remove the motor from was also easy (turn of the dishwasher breaker, remove the dishwasher door facade by the philips screws around the outside of the door and 2 self tapping hex heads on the bottom of the door, unplug the motor, remove the plastic blower motor carrier, exchange the blowers and mount the carrier back onto the back of the dishwasher door, plug the motor in, re-assemble, power on and test). The challenges I ran into were:
  -  the ribbon cable from the dishwasher door facade to the control unit would not unplug from the control unit - the release tab broke off, the cable was stuck (so I worked with the door partially in the way, being careful not to break the ribbon cable)
  - lots of lime/calcium/soap buildup on the interior vent and motor carrier (requiring scraping/cleaning  - make sure you mount the vent so the 2 drain slots are facing down - same way it came out - maybe easier to just dot the top  with a permanent marker if you don't see the 2 drain vents)
  - rust on the door facade (sand and paint with white rust paint), and rust on the stainless steel (I lightly sanded the rust off with a 100 grit sandpaper).

Looks like the brass brushing in the black rubber wears out and allows the blower to resonate when running. Given the high humidity environment, I suspect I will need to continue to replace this every 5 years or so as the replacement blower is an exact match for what came out - still cheaper than a new dishwasher.

Only take this on yourself is you are handy/not afraid of using tools.