Thermostat Housing
Engine Valve Cove
Intake Manifold
Expansion Tanks
Variable Valve Timing (VVT)

EGR Valve
Secondary Air Pump
Oil Cooler
Blower Resistor
Heater Valve
Throttle Body
Ignition Coil
Nitrogen Oxygen Sensor
Headlight Leveling Sensor
Oxygen Sensor
Temperature Sensor
Brake Light Switch
Fuel Pressure Regulator
Mass Air Flow Sensor
Oil Pressure Switch
ABS Sensor
Auxlliary Water Pump

Thermostat Housing (Coolant thermostat housing, Thermostat housing Assembly, Water Outlet)

The thermostat housing serves as the coolant outlet and is located on either the cylinder block or intake manifold. Coolant typically flows out of the housing, through a large hose, and into the radiator. These housings hold the thermostat that regulates the flow of coolant through the engine and radiator.