Originally Posted by rgardjr1
We had to replace the water pump in our 2006 LX470 at around 80K because it was leaking. I think Toyota's maintenance schedule is around 120K. We did it at the 100K service (timing chain) on our 2000 LX470 since they were already in there and the labor would be negligible. Only issue we had with the 2000 was the starter, but that was an easy fix.
A little FYI for you-
In the Toyota 4.7 V8, the waterpump should be replaced at the timing belt change not just because "you're in there" but because the timing belt usually fails due to waterpump failure.
The timing belt tensioner, and the idler pulley should also be changed. Some dealerships skimp on this.
The timing belt itself will last far beyond the 90k mile interval, but contamination from leaking coolant or oil will kill it quick.