GMC Sierra 3500HD

Overview: Is the GMC Sierra 3500HD a Good Heavy-Duty Truck?

The GMC Sierra 3500HD is a formidable full-size heavy-duty pickup truck with even greater towing and hauling capabilities than its 2500HD sibling. Available in regular, double, and crew cab configurations, the Sierra 3500HD can accommodate between three and six passengers, depending on the chosen cab style. Buyers can select from powerful V8 gasoline and Duramax turbodiesel engines, which deliver power to the rear or all four wheels. The 3500HD lineup spans from basic work truck trims to the luxurious Denali Ultimate grade, catering to a wide range of needs and preferences. With a maximum towing capacity of up to 36,000 pounds when properly equipped, the Sierra 3500HD is well-suited for both recreational and commercial towing tasks.

This overview focuses on the following generations:

• Third-generation GMC Sierra 3500HD: 2007-2014
• Fourth-generation GMC Sierra 3500HD: 2015-2019
• Fifth-generation GMC Sierra 3500HD: 2020-Current

Note: Equipment, features, and trims can vary by model year. Always confirm these details when looking for used GMC Sierra 3500HD trucks for sale.

Find a used GMC Sierra 3500HD near me.

Related: Here Are The GMC Sierra Years To Avoid

Key Features

The GMC Sierra 3500HD offers:

• Full-size heavy-duty pickup truck body style
• Regular cab, double cab, or crew cab configuration
• Gasoline V8 or Duramax V8 turbodiesel engines
• Automatic transmission
• Rear-wheel drive (RWD) or four-wheel drive (4WD)
• Single rear wheel (SRW) or dual rear wheel (DRW/dually) configurations

Trims

Recent Sierra 3500HD trims include the Pro, SLE, SLT, AT4, Denali, AT4X, and the range-topping Denali Ultimate. Regular, double, and crew cabs provide varying levels of interior space, while long and standard cargo beds accommodate different hauling needs. Third and fourth-generation models offered slightly different trim lineups.

Comfort, Technology & Cargo

The Sierra 3500HD's comfort and technology features vary greatly depending on the trim. Entry-level Pro models focus on functionality, while the range-topping Denali Ultimate pampers occupants with premium materials and advanced amenities. Crew cab models provide the most spacious interiors. Earlier 3500HD models offered basic technology features, while newer iterations boast modern infotainment systems with touchscreens, smartphone integration, and available wireless charging. The MultiPro tailgate, introduced in the fifth generation, offers six distinct functions for easier cargo management. Maximum cargo bed volume reaches 83.5 cubic feet on long box configurations.

How It Drives

Fifth-generation GMC Sierra 3500HD models come standard with a 6.6-liter V8 gasoline engine producing 401 horsepower and 464 lb-ft of torque, providing strong acceleration. The available Duramax 6.6-liter turbodiesel V8 churns out an impressive 910 lb-ft of torque for even greater towing prowess. The 3500HD's ride can be somewhat stiff when unloaded due to its heavy-duty suspension, but it smooths out when hauling a substantial load or towing a hefty trailer. The optional AT4 Off-Road Package equips the truck with skid plates, twin-tube shocks, and all-terrain tires for improved off-road performance.

Safety

The National Highway Traffic Safety Administration (NHTSA) has not evaluated the GMC Sierra 3500HD for any generation.

Reviews

According to Kelley Blue Book's consumer reviews, the third-generation GMC Sierra 3500HD earned an average rating of 4.6 out of 5, with reliability, value, comfort, and performance being the standout attributes. The fourth generation's score dropped to 4.0 as some owners questioned the truck’s value. The ranking rebounded to 4.3 for the fifth generation.

Learn More: The 10 Best Trucks That Seat Six: The Whole Family Will Fit

FAQs

Is the GMC 3500HD gas or diesel?

The GMC Sierra 3500HD offers both gasoline and diesel engine options. The standard engine is a 6.6-liter gasoline V8, while a more powerful 6.6-liter Duramax turbodiesel V8 is available for enhanced towing capabilities.

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

The primary difference between the GMC Sierra 2500HD and 3500HD is their towing and payload capacities. The 3500HD boasts a stronger frame, upgraded suspension components, and an available dual rear wheel (dually) configuration, enabling it to handle heavier loads and tow larger trailers than the 2500HD.

How much will a GMC 3500 tow?

The maximum towing capacity of a GMC Sierra 3500HD varies depending on the engine, drivetrain, cab configuration, and rear wheel setup. When properly equipped with the available Duramax turbodiesel engine, a GMC 3500 dually can tow up to 36,000 pounds using a gooseneck or fifth-wheel trailer hitch.

How many miles per gallon does a GMC Sierra 3500HD get?

Fuel economy for the GMC Sierra 3500HD depends on factors such as engine choice, drivetrain, and rear wheel configuration. The EPA does not provide official fuel economy ratings for heavy-duty trucks like the 3500HD. However, real-world estimates suggest that gasoline-powered models typically achieve 10-15 mpg, while diesel-powered variants can reach 15-20 mpg, depending on driving conditions and load.

What is the top speed of the GMC 3500HD?

The top speed of the GMC Sierra 3500HD is electronically limited to ensure safe operation, considering the truck's size, weight, and intended use. While exact figures are not officially published, most heavy-duty trucks have a governed top speed of around 95-100 mph.

Check out a used GMC 3500HD for sale.