Forest River Transmission oil cooler
I have a 2004 Georgetown with the V10. I looked all over for a replacement cooler. I really wanted to replace it with the original but could not find it. I ended up ordering a Tru-Cool Max Transmission Oil Cooler - Heavy Duty 40,000 GVW Model LPD47391
Low and behold, this is the direct replacement. You have to drill out the rivets on the brackets and reinstall them.
Hope this helps someone