GMC Sierra 3500HD Double Cab
Full Specifications
Overview
| Models Car models are the different versions or designs of cars made by a manufacturer, each with unique features, styles, and configurations. | Cab Pro |
| Year typically refers to the model year of a vehicle, which indicates its design and production cycle rather than the actual manufacturing date. | 2025 |
| Drive Type A car's drive type refers to which wheels receive power from the engine. For example, front-wheel drive (FWD) powers the front wheels, rear-wheel drive (RWD) powers the rear, and all-wheel drive (AWD) or four-wheel drive (4WD) power all four wheels. | rear wheel drive |
| Total Seating Car total seating refers to the maximum number of passengers a car can accommodate, including the driver. | 6 |
| Bed length | 98.3 in. |
| Curb Weight Car curb weight is the weight of a vehicle with all standard equipment, fluids, and a full tank of fuel, but without passengers or cargo. | 6,798 lbs. |
| Basic Warranty A Basic Warranty is a manufacturer’s promise to repair or replace parts of a product if they prove defective within a specified period. | 3 yr./ 36,000 mi. |
| Towing Capacity | 20,000 lbs. |
| Payload Capacity | 4,464 lbs. |
| Dealerships Car dealerships are businesses that sell new or used vehicles directly to consumers, often providing financing, trade-ins, and maintenance services. |
Tampa, FL 33614, United States |
Fuel & MPG / Battery & Range
| Fuel type Fuel type refers to the kind of energy source used to power an engine or appliance, such as gasoline, diesel, electricity, or alternative fuels. | Regular unleaded |
| Range in miles (city/hwy) Car range refers to the distance a vehicle can travel on a full tank of fuel (or a full battery charge) and is usually measured separately for city driving—which often gives a lower range due to stop-and-go traffic—and highway driving, where steady speeds generally result in a higher range. | 0/0 mi. |
| Fuel tank capacity A car's fuel tank capacity is the maximum amount of fuel it can hold, usually measured in liters or gallons. | 36.0 gal. |
Engine
| Base engine size The car’s base engine size usually refers to its engine displacement, which is the total volume of all the cylinders (measured in liters or cubic centimeters). | 6.6 L |
| Cylinders Car cylinders are the chambers in an engine where the combustion of fuel occurs, driving pistons to create mechanical power. | V8 |
| Base engine type A car’s base engine type refers to its fundamental design—typically the configuration (like inline, V-type, or boxer) and the fuel it uses (gasoline, diesel, etc.). | Gas |
| Horsepower Car horsepower is a unit of power that measures how much work an engine can perform, with one horsepower roughly equal to 746 watts. | 401 hp @ 5,200 rpm |
| Torque Car torque is a measure of the engine's twisting force, indicating its ability to accelerate the vehicle and overcome resistance. | 464 lb-ft @ 4,000 rpm |
| Valves Car valves are engine components that control the intake of air and fuel and the exhaust of combustion gases. | 16 |
| Cam type generally refers to the configuration of an engine’s camshaft(s). For example, engines can have a single overhead cam (SOHC) or dual overhead cam (DOHC) layout, each affecting valve timing and engine performance differently. | Overhead valves (OHV) |
| Valve timing Valve timing is the process of precisely controlling when the engine's intake and exhaust valves open and close to optimize performance and efficiency. | Variable |
| Direct injection Direct injection is a fuel system that injects fuel directly into the engine’s combustion chamber, which improves efficiency, power, and fuel economy. | Standard |
Towing & Hauling
| Max Towing Capacity | 20,000 lbs. |
| Max Payload Capacity | 4,464 lbs. |
Drivetrain
| Transmission A car transmission is the system that transfers power from the engine to the wheels, using different gear ratios to control speed and torque. | 10-speed shiftable automatic |
| Drive Type A car's drive type refers to which wheels receive power from the engine. For example, front-wheel drive (FWD) powers the front wheels, rear-wheel drive (RWD) powers the rear, and all-wheel drive (AWD) or four-wheel drive (4WD) power all four wheels. | Rear wheel drive |
| Rear limited slip differential | Standard |
Suspension
| Four-wheel independent suspension | Standard |
| Front and rear stabilizer bar | Standard |
Dimensions
| Length | 257.2 in. |
| Overall width with mirrors | 81.9 in. |
| Height | 80.9 in. |
| Wheelbase A car's wheelbase is the distance between the centers of its front and rear wheels. | 162.0 in. |
| Maximum payload | 4,464 lbs. |
| Turning circle The car turning circle is the smallest circular path a vehicle can complete, reflecting its maneuverability. | 53.9 ft. |
| Ground clearance he distance from the lowest part of the car to the ground. This measurement is important because it determines how well a car can handle rough or uneven terrain. | 11.2 in. |
| Curb Weight Car curb weight is the weight of a vehicle with all standard equipment, fluids, and a full tank of fuel, but without passengers or cargo. | 6,798 lbs. |
| Maximum towing capacity | 20,000 lbs. |
| Gross weight Car gross weight is the total weight of the vehicle including passengers, cargo, fuel, and all additional equipment. | 11,300 lbs. |
| Country of final assembly A car’s country of final assembly is the nation where the vehicle is put together into its final form, regardless of where its parts were produced. | United States |
Front Seat Dimensions
| Front head room | 43.0 in. |
| Front leg room | 44.5 in. |
| Front shoulder room | 66.0 in. |
| Front hip room | 61.2 in. |
| 8-way manual passenger seat adjustment | Standard |
Rear Seat Dimensions
| Rear head room | 39.9 in. |
| Rear leg room | 35.2 in. |
| Rear shoulder room | 64.9 in. |
| Rear hip room | 60.2 in. |
| Split-folding rear seatback | Standard |
In-Car Entertainment
| Display size | 7.0" |
| Total speakers | 6 |
| AM/FM stereo | Standard |
| USB connection | Standard |
| USB with external media control | Standard |
| Satellite radio satellite radio | Standard |
| 3 months of provided satellite radio service | Standard |
Power Feature
| 4 one-touch power windows | Standard |
| Power door locks | Standard |
| Heated mirrors | Standard |
Instrumentation
| Trip computer | Standard |
| Compass | Standard |
| Tachometer | Standard |
| External temperature display | Standard |
| Clock | Standard |
Tires & Wheels
| Tires Size | LT275/70R18 |
| Wheels Size | 18 |
| Steel wheels | Standard |
| Painted steel wheels | Standard |
| Fullsize matching spare tire | Standard |
| Underbody mounted spare tire | Standard |
Telematics
| Emergency Service | Standard |
| Airbag Deployment Notification | Standard |
| Vehicle Alarm notification | Standard |
| Stolen Vehicle Tracking/Assistance | Standard |
| Roadside Assistance | Standard |
Warranty
| Basic | 3 yr./ 36,000 mi. |
| Drivetrain | 5 yr./ 100,000 mi. |
| Rust | 6 yr./ 100,000 mi. |
| Roadside Assistance | 5 yr./ 60,000 mi. |
PROS
- Strong 6.6L V8 engine with a 10-speed automatic transmission provides reliable performance and smooth power delivery.
CONS
- Large size and turning circle can make maneuvering in tight urban areas more challenging.
The 2025 GMC Sierra 3500HD Double Cab Pro pickup delivers serious work capability with a 6.6-liter V8 gas engine producing 401 hp and 464 lb-ft of torque, paired with a 10-speed automatic transmission and rear-wheel drive. Built for demanding tasks, it offers a maximum towing capacity of 20,000 lbs and an impressive 4,464-lb payload, making it ideal for hauling equipment, trailers, or heavy cargo.
With six-passenger seating, a 98.3-inch bed, and rugged dimensions including 11.2 inches of ground clearance and a 162-inch wheelbase, this truck balances work-ready durability with practical cabin space. Assembled in the United States and backed by a 3-year/36,000-mile basic warranty, it’s a powerful, dependable option for drivers who need serious capability in a full-size work truck.
Your question is: GMC Sierra 3500HD Double Cab Pro?
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It comes with a 6.6-liter V8 gasoline engine that produces 401 horsepower and 464 lb-ft of torque.