Where is the thermostat on a 2002 V6 Dodge Dakota?

The thermostat on a 2002 Dodge Dakota V6 is located on the engine, at the lower end of the engine block, behind the water pump. You'll likely need to remove some components (like the water pump cover in some cases) to access it. Because it's not readily visible, you'll need a repair manual specific to your year and engine (3.9L or 3.7L V6) to be certain about the precise location and removal procedure.