2003 cummings diesel according to SAM
Three variations of the venerable 5.9-liter I-6 Cummins turbodiesel motivate the HD. A standard output model produces 250 horsepower/460 lb-ft of torque through an NV4500 HD five-speed manual or 47RE or 48RE four-speed automatic. Next up is the High Output, common-rail-injected 305-horsepower packing 555 lb-ft of mammoth torque. It boasts a 350K miles-to-overhaul interval. To harness that much power, Dodge pairs this engine with the NV5600 six-speed manual, replete with a 5.71:1 granny first gear (a heavy-duty version of the four-speed automatic will see its way to the HO diesel by mid-2003). With California's stricter diesel-emission requirements, residents of the Golden State have a right to feel neglected, as they're offered only the leftovers from last year: the 235-horse 460 lb-ft version of the low-pressure
Read more: http://www.motortrend.com/oftheyear/...#ixzz1gALXY32y
Dodge Ram Heavy Duty now offered a new 48RE automatic tranmission, expanding the capability of the Cummins High Output Turbo Diesel. Built to a durability test aimed directly at commercial customer use, the Ram Heavy Duty was tested in conditions ranging from -40°F to +50°F and running the equivalent of 150,000 miles at 95 percent of their on-the-job abuse level.
350,000 miles is what the Cummings engine can do before a rebuild, if it was properly maintained.
after rebuilding it a couple times, it can be re-sleeved & start all over again