HVAC Heater Core. 1994-2001 Dodge Ram 3500 Engine: 5.9L L6 DIESEL;. 1994-2001 Dodge Ram 3500 Engine: 5.9L V8 GAS;. 1994-2001 Dodge Ram 3500 Engine: 8.0L V10;. Heater Core. IMPORTANT: To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.
