I have a 2001 xterra 4x4 with a 3.3l and I wanted to know if it was possible to install the stock supercharger on it, and if so what has to be done?

Hmm, now there's an original idea... :rolleyes:

Possible? Sure, anything is possible if you spend enough money.
Practical? No. It's been a possibility for over 5 years, and I haven't heard of anyone actually going through with it to completion.
Worth it? The time and money needed can't possibly be worth the modest boost in power. You'd be better off just pulling a supercharged engine out of a wreck and swapping it in.

i have the same problem, but i got the superchrage hella cheap....it wasnt til later i found out i would have 2 spend about 6 or 7 g's i replace parts that would allow the charge to be compatible with a 2001 3.3l v6 xe....i decided the cheapest route to having my 2001 body style and a superchrager would be to find a wrecked already charged xterra and pull and engine swap....i need input because this is what ive wanted for a very long time