The thermostat in a 2006 Chrysler 300 is located inside the thermostat housing attached to the engine at the end of the upper radiator hose; the exact spot depends on whether your car has the 3.5L V6 or the 5.7L Hemi, but both are on the front of the engine and accessible from the engine bay.
To locate it, open the hood and trace the thick upper radiator hose from the radiator toward the engine. The point where the hose ends and connects to a metal/plastic housing on the engine is the thermostat housing. Depending on the engine, you may need to remove some intake components for better access.
Engine variants and thermostat location
The following outlines the typical thermostat housing locations for the two engines offered in the 2006 Chrysler 300.
- 3.5L V6: Thermostat housing is mounted on the front of the engine, where the upper radiator hose meets the engine. It is generally accessible from the top of the engine bay.
- 5.7L Hemi: Thermostat housing sits at the front of the engine near the water outlet; access is usually from the top of the engine and may require removal of some intake components for clearance.
When replacing the thermostat, replace the gasket and ensure the cooling system is bled of air after refilling. Properly torquing the housing bolts helps prevent leaks.
Access and replacement tips
Plan for some clearance work in the engine bay. Let the engine cool before working on the cooling system, relieve pressure safely, and follow the vehicleâs bleed procedure after refilling coolant to avoid air pockets that can cause overheating.
Summary
In summary, the thermostat on a 2006 Chrysler 300 sits inside the thermostat housing attached to the engine at the end of the upper radiator hose. The exact position varies by engine: the 3.5L V6 and the 5.7L Hemi share the same general mounting concept on the front of the engine, with access through the engine bay for replacement.