Core, Heater: Description
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
The heater core (1) is a heat exchanger made of rows of tubes and fins and is located at the front of the HVAC housing. The heater core tubes (2) are attached to the front of the heater core and are secured to the HVAC housing by a flange.
The heater core can be serviced by removing the HVAC housing assembly from the vehicle.