2019 Peterbilt 389 Towing Capacity & Payload

The 2019 Peterbilt 389 is a heavy-duty commercial truck designed for serious hauling, and its towing capacity is substantial, but it's crucial to understand that its "towing capacity" is typically referred to in terms of Gross Combination Weight Rating (GCWR) rather than a conventional hitch-based tow rating like lighter-duty consumer trucks.

Quick Answer

• Max Towing Capacity: Not applicable in the traditional sense for consumer trucks. Instead, consider GCWR, which can exceed 80,000 lbs depending on configuration and local regulations.
• Max Payload: This varies significantly based on chassis, axle configuration, and body type. It can range from over 20,000 lbs to well over 50,000 lbs.
• GVWR (Gross Vehicle Weight Rating): Highly variable, typically ranging from 33,000 lbs to over 60,000 lbs, depending on the number of axles and their ratings.
• GCWR (Gross Combination Weight Rating): Can exceed 80,000 lbs, determined by engine, transmission, axle ratios, and federal/state regulations for commercial vehicles.
• Curb Weight: Varies significantly based on spec, but typically begins around 18,000 lbs for a day cab tractor and can exceed 25,000 lbs for a sleeper model with heavy-duty components.
• Hitch Class: Not applicable in the consumer sense. The 389 is designed for fifth-wheel or gooseneck coupling for semi-trailers.

Tow Ratings by Engine & Trim

For a truck like the Peterbilt 389, "tow ratings" are defined by its GCWR, which is the maximum allowable weight of the fully loaded truck (including body, equipment, fuel, driver, etc.) plus the fully loaded trailer it is pulling. These figures are not typically broken down by "trim" in the consumer sense, but rather by the specific powertrain and chassis configurations. Due to the highly customizable nature of commercial trucks, it's essential to consult the vehicle's specific build sheet, door jamb sticker, and regulatory plates for exact figures.

Note: These are approximations. Actual capacities are determined by specific axle ratings, tire ratings, suspension, and overall vehicle configuration, as well as federal and state weight limits. Always refer to the vehicle's specific documentation.