2025 GMC Sierra 2500 Performance

If you require a truck with serious towing power to streamline jobs around Milford and the surrounding areas, the 2025 GMC Sierra 2500 is here for you. This heavy-duty truck features engine specs that allow drivers to complete assorted tasks efficiently. Learn about the 2025 GMC Sierra 2500 specs with Kent County Motors, which includes the specs for both engine options. The GMC Sierra 2500 is available with a high-powered V8 engine and a turbo-diesel engine. Contact us to test-drive a GMC Sierra 2500 in Dover! 

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:

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

Discover Your GMC Pickup at Kent County Motors Today

Does a GMC Sierra 2500 sound ideal for projects in Smyrna and Middletown? Do you have questions about the GMC Sierra 2500 engines? Call (302) 316-4808 or contact us online today to arrange your test drive. We look forward to showing you the many features that make up this powerful HD truck. For more informative reads, review our GMC truck engine and GMC Sierra customization guides!