How do you replace thermostat housing on 2009 dodge charger 3.5 liter?

To replace the thermostat housing on a 2009 Dodge Charger with a 3.5-liter engine, first ensure the engine is cool, then disconnect the negative battery cable. Drain the coolant and remove any components obstructing access, such as the intake manifold if necessary. Unbolt the thermostat housing, replace the thermostat, and install a new gasket. Reassemble everything, refill the coolant, and reconnect the battery.