These prices will get you a Ram Heavy Duty with the standard 410-horsepower 6.4-liter gas-powered V8. For the entry-level Cummins diesel engine with 370 horsepower and 850 pound-feet of torque, you'll need to add $9,100. The high-output Cummins engine with 400 horsepower and 1,000 pound-feet of torque is naturally even more expensive at $11,795.
Now we also know that full-size trucks can get pretty expensive, and the Ram Heavy Duty is no exception. The most expensive starting price is for the Ram 3500 Limited with the Mega Cab and four-wheel-drive, at $67,050. Adding the high-output Cummins engine would bring that to $78,845. We don't know what options will be available, but we wouldn't be surprised if that particular truck could crest $80,000 with a few extras.