2025 GMC Sierra 1500 Engine Specs

2025 GMC Sierra 1500 AT4X

The 2025 GMC Sierra 1500 is a rugged, durable truck ready to tackle any road in Raleigh and the surrounding areas. Discover what makes this pickup truck performance-ready with the team at Hendrick Buick GMC Cary today. We discuss the 2025 GMC Sierra 1500 specs in detail, including the GMC Sierra 1500 engine options, mpg ratings, and more. Contact our dealership in Cary if you want to test-drive a GMC Sierra 1500 trim level! We think you will love getting behind the wheel of this truck and making it your new go-to ride for work and play. 

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2025 GMC Sierra 1500 Engine Options

In total, there are four powertrains for our Apex neighbors to consider. The 2025 GMC Sierra 1500 towing capacity and other GMC Sierra 1500 specs vary, depending on which engine you equip your Sierra with. Let’s compare the 2025 GMC Sierra 1500 engine specs and trim compatibility for each powertrain: 

2.7L TurboMax™ I4 Engine

Available On: Pro, SLE, Elevation

  • Horsepower: 310 hp
  • Torque: 430 lb-ft
  • Max 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
  • Max 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
  • Max 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
  • Max Towing Capacity: 13,000 pounds
  • Transmission: 10-speed automatic transmission

2025 GMC Sierra 1500 MPG Ratings 

While the 2025 GMC Sierra 1500 engine options are remarkably powerful, you’ll be surprised when you view the GMC Sierra 1500 mpg ratings below. They’re exceptionally efficient for the half-ton truck segment. 

  • 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

Experience the 2025 GMC Sierra 1500 Engine Options! 

Are you ready to see how the 2025 GMC Sierra 1500 handles? Contact our dealership near Holly Springs today! Call (919) 342-8196 or message us online to make your appointment. We look forward to answering your questions and showing you what this formidable pickup truck can do! For more information about the GMC Sierra 1500, review our interior and trim level guides.

Hendrick Vehicle Disclaimer:

 

$799.00 Dealer Administrative Fee included in advertised price.

All prices exclude all taxes, tag, title, registration fees and government fees. Out of state buyers are responsible for all taxes and government fees and title/registration fees in the state where the vehicle will be registered. All prices include all manufacturer to dealer incentives, which the dealer retains unless otherwise specifically provided. Dealer not responsible for errors and omissions; all offers subject to change without notice; please confirm listings with dealer.

All vehicles may not be physically located at this dealership but may be available for delivery through this location. Transportation charges may apply. Please contact the dealership for more specific information. All vehicles are subject to prior sale.

 

Additional Disclaimers:

 


Well-qualified customers who purchase a new, used, or certified pre-owned vehicle, 4 model years or newer with less than 60K miles between June 2, 2026 and July 31, 2026, and finance through a participating dealer and lender have the option to defer monthly payments for 90 days from contract date. Excludes Hendrick Performance vehicles. Finance charges begin to accrue on the date you sign the Retail Installment Sale Contract at the Annual Percentage Rate (APR) disclosed in the contract. May not be combined with other preferred lender financing offers. 75 months maximum term limit. Equal monthly payments only. Not available to Pennsylvania residents; see your dealer for details. Must take retail delivery by July 31, 2026. See dealer for complete down payment and interest rate options and details. Financing available to qualified buyers. Some exclusions apply. See dealer for complete details. 

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #ZT20735. See dealer for details. Take retail delivery by 6/30/26. **Length of contract limited. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. ***Deferred monthly payments for 90 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #ZT21070. See dealer for details. Take retail delivery by 6/30/26. **Monthly payment is $16.67 for every $1,000 you finance. Average example down payment is 10.3%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. ***Deferred monthly payments for 130 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #ZT20201. See dealer for details. Take retail delivery by 6/30/26. **Length of contract limited. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. ***Deferred monthly payments for 120 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #ZT21070. See dealer for details. Take retail delivery by 6/30/26. **Monthly payment is $16.67 for every $1,000 you finance. Average example down payment is 10.3%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. ***Deferred monthly payments for 130 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #ZT21070. See dealer for details. Take retail delivery by 6/30/26. **Monthly payment is $16.67 for every $1,000 you finance. Average example down payment is 10.3%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. ***Deferred monthly payments for 130 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #T21144. See dealer for details. Take retail delivery by 6/30/26. **Monthly payment is $18.37 for every $1,000 you finance. Example down payment is 28.3%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. ***Deferred monthly payments for 130 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

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