Does a 2003 Chrysler sebring have 2 piece thermostat housing?

The 2003 Chrysler Sebring's thermostat housing design isn't universally a single or two-piece design. It depends on the engine. The 2.4L and 2.7L engines have different designs. Some sources suggest a two-piece design is more common for at least one of the engines in that year, but definitive confirmation requires checking a parts diagram specific to the *exact* engine code (found on the engine itself). You should consult a parts diagram for your specific vehicle's engine to be sure.