The 2025 Ram 2500 Power Wagon and 2500 Rebel HD arrive with their own refresh. Both feature design and technology updates, while the Rebel gets major enhancements to its available turbodiesel engine option.
The 2500 Power Wagon continues to be available only with a tried, true, and at this point old 6.4-liter V-8 rated at 405 hp and 429 lb-ft of torque. It’s fine, but Ford’s 7.3-liter Godzilla V-8 is more modern, more powerful, and more refined.
The Rebel HD soldiers on with the gas V-8 as the standard engine, but it’s the optional $12,595 6.7-liter Cummins inline-6 turbodiesel that makes Power Wagon buyers take pause. It’s not the 430-hp rating, but the 1,075 lb-ft of torque that appeals to those who buy their trucks to do work. That’s more than Chevy’s 975 lb-ft but less than Ford’s 1,200 lb-ft. The Cummins turbodiesel has been heavily revised for 2025 with a new turbocharger and intake manifold, glow plugs replacing the old grid heater, a top-loading cartridge-style oil filter, and two top-mounted fuel filters. Ram also ditched the old 6-speed automatic transmission paired with the turbodiesel and replaced it with an 8-speed automatic.