Replace your damaged intercooler and get your 1994-1998 Dodge 5.9L Diesel back up and running. When replacing your intercooler, you can find factory-style units as well as upgraded versions that offer increased strength to handle more pressure. An intercooler is an important part of the turbocharger system on your turbo-diesel engine. The intercooler cools down the charge air before entering the intake manifold, after it is pressurized by the turbocharger. You'll find top manufacturers such as AFE, Banks Power, CSF, XDP, and Mishimoto to choose from.