Just here to spread some additional info on the Quest alternator upgrade. Going through some files and found this info again, so i figured I post it. I don't post much on forums, but I hope this info helps someone.
This Alternator was fitted on the 3.3L (VG33E) engines.
1996–2000 Nissan Pathfinder
1996–2004 Nissan Pathfinder In Australian Models
1997–2000 Infiniti QX4
1999–2004 Nissan Frontier
2000–2004 Nissan Xterra
1997–2002 Nissan Elgrand
1999–2002 Nissan Quest/Mercury Villager
1999–2004 Nissan Paladin
So in case the Quest specific alternators are hard to find, there are other options.
Anyone looking for a high output alternators, companies such as Mechman and DCPowerInc makes 250+ amp ones for the VG33E. It will definitely suit people who have demanding systems. They're a bit pricey, but You surely won't have any power issues. DCPower also makes a RB specific 180amp alternator seen HERE.