Shop Nilight Radiator for Dodge Ram 1500 2002 2003 2004 2005 2006 2007 2008, Ram 3500 2500 2003 3.7 V6 4.7 5.7 5.9L V8 4WD RWD Performance Aluminum Replacement OEM in high quality. 100% leak tested to prevent coolant loss and keep the engine running efficiently. Increases the boiling point of the engine coolant to maintain efficiency. Maintains the pressure of the cooling system to keep the vehicle safe and well sealed.