Across the 2026 Ram ProMaster lineup, Ram lists a gross combined weight rating of 12,000 pounds. Gross vehicle weight ratings range from 8,550 to 9,350 pounds, depending on the model selected.

Payload capacity also varies by body style. Cargo Van models offer payload ratings from 3,871 to 4,746 pounds, while Cutaway models provide higher ratings ranging from 5,236 to 5,315 pounds.

• 8,550 to 9,350-pound GVWR range
• 12,000-pound GCWR
• 3,871 to 4,746-pound Cargo Van payload range
• 5,236 to 5,315-pound Cutaway payload range
• 4,629-pound front GAWR
• 5,004 to 5,291-pound rear GAWR range

Inside the cargo area, the 2026 Ram ProMaster offers load floor lengths of 106.3, 124.1, 147.1, and 161.5 inches. These measurements align with available 8-foot, 10-foot, 12-foot, and 13-foot cargo length configurations.

For the exterior, Cargo Van models are available in overall lengths of 195.5, 213.2, 236.3, and 250.6 inches, depending on the setup. Wheelbase choices include 118-inch, 136-inch, and 159-inch configurations.

• 118-inch wheelbase
• 136-inch wheelbase
• 159-inch wheelbase
• 195.5-inch overall length
• 250.6-inch longest listed overall length
• 106.3 to 161.5-inch load floor length range
• 8-foot, 10-foot, 12-foot, and 13-foot cargo lengths

The 2026 Ram ProMaster measures 82.1 inches wide without mirrors. With mirrors extended, Ram lists the width at 97.8 inches with short-arm mirrors and 112.4 inches with long-arm mirrors.

For upfits, storage systems, shelving, cargo bins, and tool organization, the interior width between the wheel wells is especially important. The ProMaster Cargo Van provides 56 inches of cargo width between the wheel wells.

• 82.1-inch body width without mirrors
• 97.8-inch width with short-arm mirrors extended
• 112.4-inch width with long-arm mirrors extended
• 56-inch cargo width between wheel wells
• 36.3, 40.7, or 46.8-foot turning diameter, depending on configuration

Seating in the 2026 Ram ProMaster Cargo Van depends on the front-seat arrangement chosen. Ram lists Cargo Van seating configurations for up to one, two, or three occupants.

Business owners who need room for additional passengers can choose the available Crew Van Package. This package is offered on High Roof Van models and increases seating capacity to as many as six people.

• Cargo Van seating for up to one, two, or three occupants
• Available Crew Van Package
• Seating for up to six with Crew Van Package
• Four-way manual-adjust driver’s bucket seat
• Available passenger double seat
• Available driver and passenger swivel seats