For 2013, diesel models get a long list of improvements. All Ram Heavy Duty diesel models get a new cooling system that includes a high-efficiency fan, dual radiators, dual transmission coolers and a charge air cooler for 25 percent more heat-rejection capability and better durability. Diesel models also get a new Ram Active Air intake, as well as a larger exhaust-gas recirculation (EGR) cooler plus selective catalyst reduction; and they get a new capless fuel filler. Also for 2013, grille designs are new; the quad-headlight design has a new beam pattern and the premium headlamp system has a new bi-halogen projector-beam setup with LEDs for running lamps and turn signals. Inside, the center console area and front seating configurations have been redesigned; there are all-new ventilation and A/C controls, and new Uconnect connectivity and entertainment systems have been added. For 2013 the remote central locking system now includes the RamBox cargo management system and tailgate locks. A new remote start system now allows starts from up to 300 feet away.
Unparalleled torque and pulling power of Cummins diesel; the tow king, with ratings up to 30,000 pounds; choice of transmissions; improved fuel economy; luxurious new cabins; available Uconnect touch-screen connectivity and infotainment
The big Cummins diesel 6-cylinder that's available in 2500 and 3500 HD models is unlike anything else on the market--with the attitude and torque curve of a tractor-trailer engine. It, plus a number of other upgrades for 2013, give the heavy-duty Ram 3500 editions an astonishingly high maximum tow rating of 30,000 pounds. Ram 2500 models are intended for the most extreme personal-towing needs, while the 3500 models are aimed at heavy commercial use by ranchers or construction crews. With diesel models' 10-percent gain in fuel efficiency, as well as other maintenance-related improvements, running costs should be down versus these trucks' predecessors. Even compared to the other latest heavy-duty trucks, the Ram 2500 and 3500 HD models have some of the best-appointed, most luxurious and most attractive interiors, picking up much of the look and some of the high-line materials from the latest light-duty Ram trucks.