If the thermostat is exposed but it just won't come out, it might just be stuck with a little gasket sealer. If that's the case, you might need to 'persuade' the thermostat a little.
Where the lower hose goes on the engine, it is under that housing.
It is next to the thermostat housing on top of the engine.
The thermostat on a 3.7L V6 is under the housing where the lower radiator hose attaches to the engine.
It is under the housing where the upper radiator hose attaches to the engine.
It is under the housing that the lower rad hose hooks to.
behind the thermostat housing,two wires
The thermostat is under the housing where the upper radiator hose attaches to the engine.
It is under the housing that the lower radiator hose hooks to on the engine.
Follow the lower radiator hose to the engine, it is there.
It is the two wire sensor next to the thermostat housing.
1992 dodge Dakota 5.2l 318....192 F thermostat
On the 3.7L and 4.7L the thermostat is under the housing where the lower radiator hose hooks to the engine.