The 2021 Ram ProMaster Window Van is available in two models. The 2500 is the standard model with and the 3500 has a longer rear body. Either way, both are equipped with the same naturally aspirated 3.6-liter V6 gas engine with 280 horsepower and 260 lb-ft of torque. The standard six-speed automatic transmission is also common to both.
Both 2500 and 3500 sit on the same wheelbase, the difference being in the rear overhang. The 2500's body is 236.2 inches long and the 3500's 250.6 inches. As a result the 2500 offers 420 cubic feet of cargo capacity and the 3500, 463 cu ft. Both models run on silver-painted 16-inch steel wheels and have manually adjustable exterior rear-view mirrors. Two cloth seats are fitted. An infotainment system with a five-inch screen and Bluetooth streaming is fitted as standard, as is air-conditioning, six airbags, and cross-wind assist.