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What is the towing capacity of the 6.6 Duramax diesel?

The 6.6 Duramax diesel engine is a powerful and capable powerplant found in many heavy-duty trucks and SUVs. One of the key specifications that potential buyers are interested in is the towing capacity of vehicles equipped with this engine. According to the information gathered from various sources, the towing capacity of the 6.6 Duramax diesel can vary depending on the specific vehicle model and configuration.


Towing Capacity Breakdown


The 6.6 Duramax diesel engine is available in several General Motors vehicles, including the Chevrolet Silverado HD, GMC Sierra HD, and Chevrolet Suburban. The towing capacity for these vehicles can range from around 14,500 pounds to as high as 35,500 pounds, depending on the specific model, trim level, and other factors.



  • Chevrolet Silverado HD with 6.6 Duramax: Up to 35,500 pounds towing capacity

  • GMC Sierra HD with 6.6 Duramax: Up to 35,500 pounds towing capacity

  • Chevrolet Suburban with 6.6 Duramax: Up to 14,500 pounds towing capacity


It's important to note that the towing capacity can also be influenced by factors such as the vehicle's GVWR (Gross Vehicle Weight Rating), GCWR (Gross Combined Weight Rating), and the specific equipment and options installed on the vehicle. Buyers should always refer to the manufacturer's specifications and recommendations for the exact towing capacity of their particular vehicle model and configuration.


Factors Affecting Towing Capacity


The towing capacity of a vehicle equipped with the 6.6 Duramax diesel engine can be affected by several factors, including:



  • Engine Specifications: The specific engine configuration, horsepower, and torque output can impact the towing capacity.

  • Transmission: The type of transmission (manual or automatic) and the number of gears can influence the towing capacity.

  • Axle Ratio: The rear axle ratio can affect the towing capacity, with higher ratios generally providing more towing capability.

  • Payload Capacity: The vehicle's payload capacity, which is the maximum weight it can carry, including passengers and cargo, can also impact the towing capacity.

  • Trailer Type and Weight: The type and weight of the trailer being towed can affect the towing capacity, as heavier trailers may require a higher-capacity vehicle.


It's essential for buyers to carefully consider these factors when selecting a vehicle equipped with the 6.6 Duramax diesel engine to ensure they choose a model that meets their specific towing needs.

Which Silverado can tow 10,000 lbs?


5.3L V8 Engine with Direct Fuel Management: The Chevy Silverado 1500 towing capacity reaches 11,500 pounds (Note: the same engine with active fuel management tows up to 10,000 pounds).



What is the towing difference between 2500 HD and 3500HD?


While the 2500 HD is capable of towing up to 18,510 lbs. the 3500HD can tow up to 36,000 lbs. With the dual rear wheels and the gooseneck hitch this allows the 3500HD to carry an enormous amount of weight.



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.



What is the max towing package on a Silverado 2500?


The max towing package on a 2024 Chevy Silverado 2500 is formally called the "Max Trailering Package." It's an essential option for those who want to reach the maximum tow rating of 22,500 pounds. This package includes driveline and safety features that make the maximum rating possible.



How much can a 6.6 l Duramax tow?


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.



What's better, 6.6 gas or diesel?


Diesel Engine (6.6L Duramax V8):
Higher towing capacity (up to 22,430 lbs) Significantly more torque (975 lb-ft) Better fuel efficiency. Longer engine lifespan.



How many miles per gallon does a 2024 Chevy Silverado 2500HD Duramax get?


Check Out the 2024 Chevrolet Silverado's Miles Per Gallon
Depending on the trim, you can get anywhere from 16 mpg to 18 mpg in the city and 18 mpg to 21 mpg on the highway.



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.



What is the towing capacity of the Chevy 2500HD vs 3500HD?


One of the biggest differences is that with the much wider chassis with the 3500HD with available dual rear wheels this truck is capable of towing much more weight. The dual rear wheels deliver much more power to the pavement. While the 2500 HD is capable of towing up to 18,510 lbs. the 3500HD can tow up to 36,000 lbs.



What is the towing capacity of the 2024 Chevy 2500 6.6 diesel?


18,500 pounds
Chevy Silverado Towing Capacity: Duramax 6.6L Turbo-Diesel V8 Engine. With this diesel V8 configuration, the Chevy Silverado 2500 towing capacity is 18,500 pounds when fully equipped with the towing package.


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.