How the 3500 configurations differ
Every 2025 ProMaster 3500 shares the same 276-horsepower V6, 9-speed automatic, and 9,350-lb GVWR; what changes is the box behind the seats. The 136-inch wheelbase comes as a low roof with 307.5 cu ft or a high roof with 357.3 cu ft, and the shorter, lighter low roof body is where the maximum 4,680-lb payload lives. The 159-inch wheelbase high roof grows to 425.9 cu ft with a 4,430-lb payload and a 6,480-lb tow rating. The extended-body EXT versions are exclusive to the 3500: the 159-inch EXT high roof holds 468.9 cu ft, and the EXT super high roof tops the class at 524 cu ft with 86.4 inches of interior standing height. Ram also sells the 3500 as a chassis cab and cutaway for box bodies and service upfits.

