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What is the towing capacity of the 2019 GMC Sierra 2500HD 6.6 Duramax?

The 2019 GMC Sierra 2500HD 6.6 Duramax has a maximum towing capacity of 20,000 pounds when properly equipped. This powerful heavy-duty pickup truck is designed to handle heavy loads and trailers with ease.


Detailed Towing Capacity Breakdown


The 2019 GMC Sierra 2500HD 6.6 Duramax is available with a 6.6-liter Duramax turbo-diesel V8 engine that produces 445 horsepower and 910 lb-ft of torque. This engine, paired with a heavy-duty Allison 10-speed automatic transmission, gives the Sierra 2500HD impressive towing capabilities.



  • Maximum Towing Capacity: 20,000 pounds

  • Maximum Payload Capacity: 3,979 pounds

  • Gross Combined Weight Rating (GCWR): 27,500 pounds


The towing capacity of the 2019 GMC Sierra 2500HD 6.6 Duramax can vary depending on the specific configuration, such as the cab style, bed length, and whether it's a 2WD or 4WD model. It's important to consult the vehicle's owner's manual or a GMC dealer to determine the exact towing capacity for your specific Sierra 2500HD model.


Key Features for Towing


The 2019 GMC Sierra 2500HD 6.6 Duramax comes equipped with several features that enhance its towing capabilities:



  • Trailer Sway Control: Helps maintain control of the vehicle and trailer by detecting trailer sway and applying the brakes accordingly.

  • Integrated Trailer Brake Controller: Allows the driver to adjust the trailer brake settings directly from the dashboard.

  • Trailering Camera System: Provides multiple camera views to help the driver maneuver the vehicle and trailer with greater visibility.

  • Tow/Haul Mode: Adjusts the transmission and engine settings to optimize performance and control when towing heavy loads.


These features, combined with the Sierra 2500HD's robust construction and powerful Duramax engine, make it a capable and reliable choice for towing heavy trailers, fifth-wheels, or other large loads.

What is the max trailering package on the 2019 GMC Sierra?


12,200 LBS MAX TRAILERING CAPABILITY The Next Generation Sierra with the available 6.2L V8 and Max Trailering Package confidently trailers up to 12,200 lbs1 with the Double Cab and 12,100 lbs1 with the Crew Cab.



How big of a fifth wheel can a GMC 2500 pull?


The maximum towing capacity of the 2021 GMC 2500 HD comes in at an unbelievable 14,500 pounds for conventional gas engine towing and 18,510 pounds for 5th wheel towing when properly outfitted. Curious?



What is the towing capacity of the 6.6 Duramax 2500?


2024 Chevy Silverado 2500 HD Engine Differences

Engine6.6L gas V86.6L Duramax turbo diesel V8
Torque464 lb.-ft.975 lb.-ft.
Max. Conventional Towing16,000 lbs.20,000 lbs.
Max. Gooseneck/Fifth-Wheel Towing18,700 lbs.22,430 lbs.
Max. Payload3,689 lbs.3,615 lbs.



How much can a 2019 GMC 2500 Duramax tow?


Or, for those who want the maximum power, there's the Duramax 6.6-liter V8 Turbo Diesel engine. When properly equipped and with this engine boasting 445 horsepower and 910 lb-ft of torque, the 2019 GMC Sierra HD can tow up to 23,100 pounds and haul a payload of up to 6,112 pounds!



What is the towing capacity of the 2018 GMC Sierra 2500HD engine 6.6 L V8 diesel?


14,500 pounds
With a conventional trailer, the Sierra 2500 HD can tow up to 14,500 pounds or add a fifth wheel/gooseneck trailer for a maximum of 18,100 pounds of towing capacity.



What is the strongest Duramax engine?


L5P
Producing 470 hp and 975 lb-ft of torque, the L5P is the strongest Duramax yet.



What is a GMC Max trailering package?


An Automatic Locking Rear Differential for improved traction and stability, especially in challenging terrains. A Handling/Trailering Suspension Package for a smoother ride and enhanced stability under heavy loads. Upgraded shock tuning and rear springs for improved load-carrying capacity and shock absorption.



How many horsepower is a 2019 GMC Sierra 2500HD with a Duramax diesel?


445 hp
The available Duramax 6.6-liter turbocharged diesel V8 engine generates 445 hp and 910 lb. -ft.



What is the towing capacity of the Duramax compared to the Cummins?


For example, some Ram models with the Cummins engine can tow up to 37,100 pounds when properly equipped, making it an ideal choice for heavy-duty hauling. While the Duramax doesn't quite reach those numbers, it still offers impressive towing capabilities, with many Chevy and GMC trucks able to tow up to 36,000 pounds.



How big of a fifth-wheel can a 2500HD pull?


The Chevy Silverado 2500 towing capacity is 14,500 pounds with conventional towing and 18,100 pounds with fifth-wheel/gooseneck towing.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.