Cummins 600 5.9L I6 DI 24V High-Output Turbodiesel. Let's get to work! Dependable champ! You won't find a better truck than this hard-working 2004 Dodge Ram 2500. This Ram 2500 has a great cockpit layout, with all the controls easy to find and right where you need them. J.D. Power and Associates gave the 2004 Ram 2500 4.5 out of 5 Power Circles for Overall Initial Quality Design. New Car Test Drive said it ''...offers a much smoother ride and a bigger, more comfortable, and more convenient cab. But all this refinement doesn't mean the Dodge Ram has gone soft...also delivers improved towing and hauling capability, plus more powerful and efficient engines...''