2024 Gmc Sierra 2024 Diesel Specs. View detailed specs, features and options for the 2024 gmc sierra 1500 4wd crew cab 147 at4 at u.s. Research the 2024 gmc sierra 1500 at cars.com and find specs, pricing, mpg, safety data, photos, videos, reviews and local inventory.

2024 gmc sierra 1500 at4. Gmc’s heavy hauler, the sierra hd pickup with the diesel engine, is rated to tow up to 22,500 pounds conventionally or 36,000 with a gooseneck hitch fitted.