Many options can be considered as a cure before they broke of, but they broke




And they got loose
But I need the gasket, 2 dollar part with 20 dollar shipping or more.
My parts guy is retired since this month

, but no more knowledge from him
HJ60 thermostat part number# 16341-68010 gasket thermostat upper toyota landcruiser HJ47 HJ75 HJ60 HJ61
Bolt is M8x1.25 partnumber 9161160822
And the housing got out fine, tapping with a teflon hammer:
I rather weld with fluxcore wire for this as the wire it thin and far easier to work with, get the bolt on as far as possible (but left and right turn must be possible to start release with T-handle) and weld red hot in one fluid action, more than you think it can handle.
A bigger nut has more room for a nice pile of red hot weld, less chance the wrench does not fit over it anymore:
This summer we will visit Croatia again so a long trip with trailer trough the alps and I could never have removed the thermostat if needed/overheating so I think removing the housing as maintenance is good practice.
Topics about thermostat gasket leaking (warped housing)
Thermostat housing gasket leak
And thermostat broken bolt:
broken thermostat bolt, Please Help!