Heater core on Dodge Ram 3500 vehicles is part and parcel of climate control system to supply hot air to the cabin during heating operation. Like the radiator in a vehicle, the Heater Core uses a blend of water and anti-freeze to take extra heat from the engine and circulate it inside the car. It is made from aluminum or brass and has fins to increase heat transfer rate, the coolants that circulate through it flows from the engine while air is forcibly passed through by a fan of the vehicle. Some of the possible factual sites of temperature manipulation in Dodge Ram 3500 models are a valve that allows the control of coolant circulation and electromechalcial systems with actuators for setting the temperature finely. However, the Heater Core contributors to general warming of the cabin and can also contribute to engine cooling and in improving the effects of air dehumidification in air conditioned autos. Symptoms that hint at Heater Core problems include when it clogs, when its sealed units are leaking or when it has rusted and this is bad news because the dashboard requires a lot of disassembly when making repairs to a Heater Core.