2025 GMC Sierra 2500 Performance

Tackle your toughest tasks with a rugged pickup truck in Edmonton when you invest in a GMC Sierra 2500 from Capital GMC Buick. You have a choice of two GMC Sierra 2500 engine options, both of which have different tow ratings. With a max tow rating of over 9,000 kilograms, you can handle livestock trailers and equipment with ease. For something in the lighter range, consider a GMC Sierra 1500.

Keep reading our guide to the 2025 GMC Sierra 2500 specs for the engine options and towing capacity. Then, reach out to our team near Sherwood Park when you’re ready to see this pickup truck in action.

GMC Sierra 2500 Engine Options

As we stated, there are two GMC Sierra 2500 engine options available for 2025. Both have outstanding towing capabilities. One thing to note is that the official fuel economy numbers aren’t listed because these are heavy-duty trucks. However, we can give you an estimate of the GMC Sierra 2500 mpg (fuel efficiency) for driving in and around Leduc based on what actual drivers say.

See this list of the 2025 GMC Sierra 2500 specs for the engines for more details:

6.6L V8 Engine

• Available On: Pro, SLE, SLT, AT4, Denali, AT4X
• Horsepower: 401 hp
• Torque: 464 lb-ft
• Fuel Tank Capacity: 136 litres
• Transmission: Automatic, 10-speed
• GMC Sierra 2500 MPG ( Fuel Efficiency, est.): 14.7 to 16.8 litres/100 kilometres

6.6L Duramax V8 Turbo-Diesel Engine

• Available On: Pro, SLE, SLT, AT4, Denali, AT4X, Denali Ultimate
• Horsepower: 470 hp
• Torque: 975 lb-ft
• Fuel Tank Capacity: 136 litres
• Transmission: Automatic, 10-speed
• GMC Sierra 2500 MPG (Fuel Efficiency, est): 14.7 to 16.8 litres/100 kilometres

2025 GMC Sierra 2500 Specs: Towing Capacity

The 2025 GMC Sierra 2500 specs for the towing capacity depend on which cab size you choose because the cab changes the weight of the pickup truck. But don’t worry. Any of the towing capacity figures deliver outstanding numbers for tasks in St. Albert:

Crew Cab

• Max Conventional Trailering: 9,072 kilograms
• Max Gooseneck/5th-Wheel Trailering: 9,920 kilograms
• Max GCWR: 13,608 kilograms
• Max Payload: 1,750 kilograms

Double Cab

• Max Conventional Trailering: 8,119 kilograms
• Max Gooseneck/5th-Wheel Trailering: 8,437 kilograms
• Max GCWR: 11,793 kilograms
• Max Payload: 1,718 kilograms

Regular Cab

• Max Conventional Trailering: 6,577 kilograms
• Max Gooseneck/5th-Wheel Trailering: 10,156 kilograms
• Max GCWR: 13,608 kilograms
• Max Payload: 1,843 kilograms

Test-Drive the GMC Sierra 2500 at Capital GMC Buick

Ready to see what this pickup truck can do? Contact us or call 825-901-4058 to schedule a test drive with our team. In the meantime, look at our new vehicle specials to see what kind of deal you could get on your next new pickup truck.