Thermostat housing blew after coolant leaking and car overheating

Hi:

Can you take a picture of the part you are referring to? The thermostat housing and water pump are not physically connected, so I'm a bit confused. Also, the Chrysler 200 wasn't offered in 2003. Please confirm year or model.

I attached a pic of the thermostat housing for a 2013 just in case that is what you meant. There is what is called a secondary thermostat which attaches to the water pump inlet tube. Is that what you are referring to

I will watch for your reply.

Joe