2025 GMC Sierra 2500 Performance Specs

Do you need a truck you can trust to have your back when you’re on the job in Crawfordville? Look no further than the 2025 GMC Sierra 2500! This powerhouse of a truck not only provides you with the safety you’re looking for but also the power. Dive into the details of this GMC with our guide outlining the following:

• GMC Sierra 2500 specs
• GMC Sierra 2500 engine options
• GMC Sierra 2500 mpg

When you’re ready to take the next step, contact us to schedule your test drive. We’re excited to get you behind the wheel of a GMC vehicle from Dale Earnhardt Jr Buick GMC that you’re sure to love for many miles to come.

GMC Sierra 2500 Engine Options

There are two GMC Sierra 2500 engine options available for 2025. Both boast plenty of horses under the hood and the torque to tow heavy loads—and while the GMC Sierra 2500 mpg hasn’t been released by the EPA yet, you can be sure that it won’t leave you stranded in Tallahassee:

6.6L V8 Engine

• Available On: Pro, SLE, SLT, AT4, Denali, AT4X
• Horsepower: 401 hp
• Torque: 464 lb-ft
• Fuel Tank Capacity: 36 gallons
• Transmission: Automatic, 10-speed

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: 36 gallons
• Transmission: Automatic, 10-speed

2025 GMC Sierra 2500 Specs: Towing Capacity

While many specs, like the GMC Sierra 2500 mpg, depend on the engine option you choose for your truck, its towing capacity depends on the truck’s weight—which means cab size. We’ve broken down the relevant 2025 GMC Sierra 2500 specs below:

Crew Cab

• Max Conventional Trailering: 20,000 pounds
• Max Gooseneck/5th-Wheel Trailering: 21,870 pounds
• Max GCWR: 30,000 pounds
• Max Payload: 3,859 pounds

Double Cab

• Max Conventional Trailering: 17,900 pounds
• Max Gooseneck/5th-Wheel Trailering: 18,600 pounds
• Max GCWR: 26,000 pounds
• Max Payload: 3,788 pounds

Regular Cab

• Max Conventional Trailering: 14,500 pounds
• Max Gooseneck/5th-Wheel Trailering: 22,390 pounds
• Max GCWR: 30,000 pounds
• Max Payload: 4,064 pounds

Explore Your GMC Sierra 2500 Engine Options at Dale Earnhardt Jr Buick GMC Today

No matter where life takes you in Thomasville, GA or Panama City, there’s a GMC truck to get you there safe and sound. Explore our new vehicle specials before you apply for financing online. You can also continue your research online with our manufacturer information, or contact us with any questions about your engine options.