2025 GMC Sierra 1500 Engine Specs

Do you need a workhorse for job sites around Baytown and beyond? Any GMC Sierra 1500 engine options will perform admirably for whatever tasks you need. The GMC Sierra 1500 towing capacity tops above 10,000 pounds, so you’ll have enough punch to haul plenty of cargo in the bed or behind you. 

Learn more about the 2025 GMC Sierra 1500 performance with the team at Big Star Buick GMC. We’ll cover the GMC Sierra 1500 engine specs, towing capacity, and other numbers. You’ll also gain insights into the GMC Sierra 1500 mpg.

2025 GMC Sierra 1500 Engine Options  

Select from four 2025 GMC Sierra 1500 engine options to handle tasks around Channelview. Depending on your preferred engine, you will see varying numbers for the GMC Sierra 1500 towing capacity. No matter which one is ideal, you’ll have awesome engine and towing specs. See the 2025 GMC Sierra 1500 engine specs with this list here:

2.7L TurboMax™ I4 Engine

Available On: Pro, SLE, Elevation

• Horsepower: 310 hp

• Torque: 430 lb-ft

• GMC Sierra 1500 Towing Capacity: 9,500 pounds

• Transmission: 8-speed automatic transmission

5.3L EcoTec3 V8 Gas Engine

Available On: Pro, SLE, Elevation, SLT. Denali

• Horsepower: 355 hp

• Torque: 383 lb-ft

• GMC Sierra 1500 Towing Capacity: 11,200 pounds

• Transmission: 10-speed automatic transmission

Duramax® 3.0L Turbo Diesel I6 Engine

Available On: SLE, Elevation, SLT, Denali, AT4, AT4X, Denali Ultimate

• Horsepower: 305 hp

• Torque: 495 lb-ft

• GMC Sierra 1500 Towing Capacity: 13,200 pounds

• Transmission: 10-speed automatic transmission

6.2L EcoTec3 V8 Gas Engine

Available On: SLT, Denali, AT4, AT4X, Denali Ultimate

• Horsepower: 420 hp

• Torque: 460 lb-ft

• GMC Sierra 1500 Towing Capacity: 13,000 pounds

• Transmission: 10-speed automatic transmission

2025 GMC Sierra 1500 MPG Ratings 

While the 2025 GMC Sierra 1500 engine specs show each model to pack a powerful punch. You might be surprised by the GMC Sierra 1500 mpg ratings. They’re exceptionally efficient for the half-ton truck segment. Remember that your fuel efficiency numbers will change based on how much cargo you’re hauling and the trim level you select.

• Pro: 18 mpg city/21 mpg highway

• SLE: 18 mpg city/21 mpg highway

• Elevation: 18 mpg city/21 mpg highway

• SLT: 16 mpg city/20 mpg highway

• AT4: 22 mpg city/26 mpg highway

• Denali: 16 mpg city/20 mpg highway

• AT4X: 19 mpg city/20 mpg highway

• Denali Ultimate: 15 mpg city/19 mpg highway

Test-Drive the 2025 GMC Sierra 1500 for Sale in Baytown

Ready to get behind the wheel of a rugged pickup truck for sale near Crosby? Contact us or call (281) 245-0298 to schedule a test drive at your convenience. In the meantime, develop a monthly budget with our payment calculator that converts a vehicle price into a manageable figure for your situation. Discover the latest GMC Sierra 1500 near Houston with Big Star Buick GMC!