2019 International MV Towing Capacity

The 2019 International MV Series, a versatile medium-duty truck, offers a maximum conventional towing capacity of up to 20,000 pounds when properly equipped.

Quick Answer

• Max Tow Capacity: 10,000–20,000 lbs
• Max Payload: Up to 19,891 lbs
• GVWR (Gross Vehicle Weight Rating): 21,000 to 37,500 lbs
• GCWR (Gross Combination Weight Rating): Up to 40,000 lbs
• Curb Weight: Varies significantly by configuration (cab, chassis, body, etc.)
• Hitch: Varies by upfit (typically Class V or specialized pintle hitches)

Tow Ratings by Engine & Drivetrain

As a commercial chassis-cab, the MV Series' ratings depend entirely on the specific configuration ordered by the customer, including the frame rails, rear axle ratio, and selected powertrain. The table below represents common configurations.

Note: These figures are for conventional towing. Always verify the specific ratings listed on the driver-side door jamb sticker, as they are unique to your truck's build specification.

Tow Package Contents

Unlike consumer trucks, the International MV doesn't have a simple "tow package." All components are ordered a la carte to meet the specific needs of the buyer. However, essential towing components factory-installed on most MVs include:

• Transmission Cooler: An auxiliary transmission fluid cooler is standard with the Allison automatic transmissions to manage heat during heavy-hauling operations.
• Integrated Brake Controller: International trucks are equipped with a dash-integrated air brake or electric brake controller system to synchronize the truck and trailer brakes.
• 7-Pin Connector: A heavy-duty 7-pin wiring connector is standard to power trailer lights and brakes.
• Engine Braking: The Cummins engines feature an integrated engine exhaust brake, which is critical for controlling speed on long downgrades with a heavy trailer.

5th-Wheel & Gooseneck Towing

The International MV is primarily designed for conventional and fifth-wheel towing. While gooseneck hitches can be fitted, fifth-wheel setups are far more common for the heavy loads this truck is built to handle. The maximum fifth-wheel towing capacity is dictated by the truck's GCWR. To calculate it, you subtract the curb weight of the truck from the GCWR. Given the MV's GCWR can reach up to 40,000 lbs, it can handle substantial fifth-wheel trailers, limited only by the specific frame and axle ratings.

Weight Distribution & WDH Requirements

For a truck in this class, a Weight Distribution Hitch (WDH) is less common for conventional towing than with light-duty pickups. The MV's sheer mass and stiff chassis handle heavy tongue weights more effectively. However, for extremely heavy conventional loads (15,000+ lbs), a WDH can still provide an added margin of stability and safety. The primary focus for the MV is ensuring the pin weight of a fifth-wheel or the tongue weight of a conventional trailer does not exceed the rear axle's Gross Axle Weight Rating (GAWR).

Real-World Towing Tips for the 2019 International MV

• Use the Engine Brake: The Cummins engine brake is your best friend. Activate it on downhill grades to maintain control and save your service brakes from overheating.
• Plan Your Fuel Stops: The MV has large fuel tanks, but consumption while towing heavy can be significant. Plan your routes, especially in rural areas.
• Know Your Dimensions: The MV is a tall, wide vehicle. Be mindful of your total height, especially when towing tall fifth-wheel trailers, to avoid low bridges and overhangs.
• Pre-Trip Inspections are Critical: Beyond standard checks, pay close attention to air lines for brakes, the fifth-wheel locking mechanism, and tire pressures on both the truck and trailer.

Common Towing-Related Issues

• Air System Leaks: The air brake system is robust, but leaks can develop over time. Listen for the compressor cycling frequently, which can indicate a leak that needs to be addressed for safe braking.
• Aftertreatment System Faults: The complex emissions (DEF/DPF) system on the Cummins engine can sometimes throw faults, potentially derating the engine's power. This is a common issue on modern diesels and requires proper diagnosis.
• Transmission Overheating: While equipped with a cooler, exceptionally heavy loads in hot climates on steep grades can still tax the Allison transmission. Monitoring the transmission temperature gauge is crucial.

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