The 2015 Ram 2500 is a heavy-duty pickup truck powered by a 5.7-liter V8 in base form, with optional 6.4-liter V8 and 6.7-liter turbocharged six-cylinder diesel engines available. The Ram 2500 is available with standard, extended and larger Mega cab variants and either rear-wheel or four-wheel drive.
The standard 5.7-liter V8 used in the 2015 Ram 2500 produces 383 horsepower and 400 foot-pounds of torque when mated to the standard six-speed automatic transmisison. The larger 6.4-liter V8 puts out 410 horsepower and 429 foot-pounds of torque and comes with an automatic transmission as standard. The turbocharged diesel engine for the Ram 2500 is available with either a six-speed manual or heavy-duty automatic transmission; paired with the former, this engine produces 350 horsepower and 660 foot-pounds of torque, while the automatic allows the six-cylinder diesel to output 370 horsepower and 800 foot-pounds of torque. The diesel and automatic transmission configuration maximizes the towing power of the truck at 17,790 pounds when properly equipped for towing, as compared to 13,870 pounds for a Ram 2500 fitted with the standard V8.
Trim levels for the Ram 2500 include the relatively spartan Tradesman, which is intended for work trucks, and the more luxurious SLT and Laramie trims. The Power Wagon trim is intended for off-road driving and incorporates unique 17-inch wheels, four-wheel drive and a 6.4-liter V8 as standard equipment. The Laramie trim is only available in crew and Mega Cab configurations, while the Power Wagon is only available with a crew cab.