1790 1993-2003 Jeep Grand Cherokee Wagoneer Dodge Ram 239, 318, 360 408 3.9L 5.2L 5.9L water pumpFlowkooler high flow pump 1790 for Jeep ZJ and Dodge Magnum blocks end overheating. It has a CNC machined billet impeller designed with an increased vane count and a reduced impeller clearance to achieve greater flow rates, higher block pressure. A Type II Class II military grade anodize surface coating protects against corrosive fluids. We developed this hi flow pump because Jeeps tend to overheat in traffic and on the trail. Tight engine space and