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

Payload capacity also depends on 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.

• 12,000-pound GCWR
• 8,550 to 9,350-pound GVWR range
• 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

Cargo space length varies by configuration, with Ram listing load floor measurements of 106.3, 124.1, 147.1, and 161.5 inches. These correspond to available 8-foot, 10-foot, 12-foot, and 13-foot cargo length options.

The 2026 Ram ProMaster Cargo Van is also available with 118-inch, 136-inch, and 159-inch wheelbases. Depending on the setup, overall length measures 195.5, 213.2, 236.3, or 250.6 inches.

• 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

For upfit planning, cargo organization, and storage solutions, one of the most useful measurements is the 56-inch cargo width between the wheel wells. This helps when planning shelving, tool boxes, equipment racks, and cargo layouts.

On the outside, the 2026 Ram ProMaster measures 82.1 inches wide without mirrors. With mirrors extended, width increases to 97.8 inches with short-arm mirrors or 112.4 inches with long-arm mirrors.

• 56-inch cargo width between 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
• 36.3, 40.7, or 46.8-foot turning diameter, depending on configuration

For standard 2026 Ram ProMaster Cargo Van models, seating capacity depends on the front-seat layout selected. Ram lists configurations that accommodate up to one, two, or three occupants.

Businesses that need additional passenger space can choose the available Crew Van Package. When equipped on High Roof Van models, this package provides seating for up to 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