Land Rover specifies an 88c thermostat for both the 300Tdi and the V8. 88C = 190F
The 300Tdi manual says the the thermostat should be fully open at 88, the V8 manual is a bit more vague. However, I don't see having some that are fully open at 88 and others that are only partly open at 88, it would be hard to be sure you have the correct thermostat.
From testing various US domestic thermostats I've found that the temp specified on them is the temp at which they start to open. They weren't fully open until the mid to high 190's.
To get one that is fully open at 88C I had to go with a 180F.
Apparently in the UK the temp of a thermostat is when it's fully open, in US it's when they start to open.
Four wheel drive allows you to get stuck
in places even more inaccessible.
62 88 Regular
67 109 6cyl NADA x2
74 Lightweight - The Antichrist
95 DI 5-speed
95 D90 5-speed
97 D1 Automatic