The isuzu part number is incorrect. I personally do not believe it is the same, as the pics for the 00 on ebay look like the old GM compressor, which is what I got from autozone. You would have to see a pic of the pulley face. If it has a series of clips that look like some sort of keltic design, thats the one on the 01, if its just plain, its the old style.
I am checking into another rumor, that the 01 trooper has the same compressor. That is what a junk yard told me, I will know thursday for sure when I get mine out and I compare side by side.