Take a look at the link I gave. Then click "motor guide" at the top of the list. You might need adobe acrobat pdf reader to view it. Once you find the motor you want, then go to the online catalog and enter the model number and it should come up with a price. The whole thing can get a bit tricky so just ask if you need help.
[URL unfurl="true"]http://www.hescoinc.com/vacuum_cleaner_parts/ametek.html[/URL]
