Hey, I'm looking for the same pot for my Onkyo A-8190 that you were looking for 5 years ago! I found a couple sources that have part of the part number but not all of it. The whole part number is 4004-100KBX4 and these sources say just 100KBX4. Do you have any idea whether they would work? Did you ever get yours to work? What did you end up doing?