Open Today Sales: 9 AM-7 PM
The 2024 GMC Sierra 2500 offers two commanding engine options, each with their own strengths. There’s the standard 6.6L V8 engine, which produces the power you need to take on most tasks, and the turbo diesel 6.6L Duramax® V8, which takes the performance capabilities to the next level. For detailed engine specs, read through this 2024 GMC Sierra 2500 engines guide crafted by the Fox Valley Buick GMC team.
If you’re interested in getting behind the wheel of this GMC truck, head over to our new GMC Sierra 2500 inventory and couple your favorite model with a finance or lease offer. Have questions? Give our St. Charles, IL, dealership a call at (630) 439-7445 or message us through our online form.
Whether you select the standard 6.6L V8 or available 6.6L Duramax turbo diesel V8 engine offered for the 2024 GMC Sierra 2500, you’ll find ample power under the hood. Both engines come with the efficient ten-speed Allison® automatic transmission.
What are some key differences between the two engines? The available 6.6L Duramax turbo diesel engine boasts an all-new turbocharger that improves the performance capabilities, especially when it comes to low-end torque, exhaust brake performance, and engine braking. Tow up to 22,430 pounds when you utilize fifth-wheel/gooseneck towing on the 6.6L Duramax. The 6.6L Duramax also has a maximum payload capacity of 4,178 pounds.
Meanwhile, the standard 6.6L V8 engine can achieve a maximum conventional towing capacity of 14,500 pounds and produces up to 464 pound-feet of torque.
View full GMC Sierra 2500 engine specifications in the accompanying table.
| 6.6L V8 | Engine | 6.6L Duramax turbo diesel |
|---|---|---|
| 401 HP | Horsepower | 470 HP |
| 464 lb.-ft. | Torque | 975 lb.-ft. |
| 14,500 lbs. | Conventional Towing | 20,000 lbs. |
The available 6.6L Duramax turbo diesel V8 can be paired with the entire 2024 GMC Sierra 2500 model lineup, and is the only available engine on the Denali Ultimate. The standard 6.6L V8 engine is offered across most of the GMC Sierra 2500 lineup, with the exception of the Denali Ultimate.
Are you interested in more detailed information regarding the 2024 GMC Sierra 2500? Be sure to take a look at our other research pages!