Case Upper: Contains the air inlet housing, blower motor resistor recirc door and motor.

Rotary Mode Valve and Seal Assembly: Cloth covered air distribution valve contained within its own case or housing.

Heater Valve and Seal: Part of Mode Valve case assembly.

Case Cover Heater Core: Contains the Heater Core and pipe assembly.

Case Lower: Contains the Heater Tube Case Cover, Blower Motor, Temperature Valve and Seal Assembly, Evaporator Core and Filter assembly.