2021 GMC Sierra 1500 AT4 and 2021 GMC Sierra 1500 with Turbodiesel engine

What are the Differences Between the 2021 GMC Sierra 1500 and Sierra 1500 Diesel?

2021 GMC Sierra 1500 vs 2021 GMC Sierra 1500 Diesel

In addition to its many standard gasoline internal combustion engine options, the 2021 GMC Sierra 1500 pickup truck model also offers its drivers a Duramax Turbo-Diesel engine option. So, how does this diesel engine option compare to the rest of the Sierra 1500 model’s gasoline engines? We’ll take a look at engine power, fuel economy, towing capacity, and more! It’s the 2021 GMC Sierra 1500 vs the 2021 GMC Sierra 1500 Diesel!


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2021 GMC Sierra 1500 Engine Options – Engine Power

Engine Option4.3L V62.7L Turbocharged Inline 45.3L V83L Turbo-Diesel Inline 6
Horsepower285 hp310 hp355 hp277 hp
Torque305 lb-ft348 lb-ft383 lb-ft460 lb-ft

2021 GMC Sierra 1500 Engine Options – Fuel Economy

Engine Option4.3L V62.7L Turbocharged Inline 45.3L V83L Turbo-Diesel Inline 6
City Fuel Economy (2WD)16 MPG20 MPG17 MPG23 MPG
City Fuel Economy (4WD)15 MPG19 MPG16 MPG22 MPG
Highway Fuel Economy (2WD)21 MPG23 MPG23 MPG30 MPG
Highway Fuel Economy (4WD)20 MPG22 MPG22 MPG26 MPG
Combined Fuel Economy (2WD)17 MPG20 MPG19 MPG26 MPG
Combined Fuel Economy (4WD)17 MPG20 MPG18 MPG24 MPG
2021 GMC Sierra 1500 new and updated trailering technology on camera display showing road

2021 GMC Sierra 1500 new and updated trailering technology on camera display

2021 GMC Sierra 1500 Engine Options – Payload and Towing Capacities

Engine Option4.3L V62.7L Turbocharged Inline 45.3L V83L Turbo-Diesel Inline 6
Maximum Payload Capacity2,240 lbs2,060 lbs2,120 lbs1,830 lbs
Maximum Towing Capacity10,000 lbs11,300 lbs12,100 lbs9,100 lbs

What is the GMC Denali Line of Vehicles?


To learn more about the 2021 GMC Sierra 1500 pickup truck model’s engine options, trim levels, special editions, and more, continue to read our blog, browse through our online inventory, and contact us here at the Palmen GM dealership of Kenosha, Wisconsin!