By 90 000 miles all the early failures should have been sorted. I had the transfer case failure and gearbox replacement for difficult engagement of 1st gear (manual).
My car has 165 000 km done , roughly equals 100 000 miles. 2008 model.
The 2006 model, I believe had head problems, check the service books, this might have been done.
The engine is stronger than ever, but a valve or two are leaking a bit , which you can see and hear when parked on a slope in a gear (without the hand brake on).
The hand brake never worked well.
The clutch was always suspect but to my surprise survived. Still the original one.
Many of the little lights in knobs and buttons of the radio, heater etc. stopped working, and.... sometimes work ok, only to fail again. A bit annoying.
This car did more than half of its mileage on dirt roads of Australia and many challenging off road treks.
I run 35inch tyres with the rims a bit offset, so naturally I was always concerned about the wheel bearings and the tie rods, but so far nothing has failed.
I never used car seat covers and the beige leather interior still looks fresh (we have nasty red dust here in Australia that can quickly hurt the looks of any car's interior).
Have I mentioned dogs travelling in the car daily?
The 4WD switches sticking and throwing off codes.
The steering rack bracket going loose, once replaced , once reinforced, now waiting for replacement again.
I really like it.
My family like it.
I can't imagine what would be the replacement for a H3.
On road a comfortable cruiser.
Off road unstoppable.
Go for it , buy one and enjoy it.
How long will it last? Don't have a clue