Swap out the leaking radiator in your 1994-1998 Dodge 5.9L 12V Cummins with a new durable replacement. Shop now at XDP and make sure your cooling system and radiator can handle the heat! Find high-quality replacement Radiators from brands such as XDP X-TRA Cool, Mishimoto, CSF, AFE, and Flex-A-Lite. Over time your factory radiator can require replacement due to leaks, clogs, front-end collisions, and many other reasons. A radiator serves as a type of heat exchanger and as hot coolant flows through it, the outside air passes over the radiator fins allowing heat to dissipate.