2021 GMC Yukon AT4
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2021 GMC Yukon AT4

The 2021 GMC Yukon AT4 offers a single engine choices:

5.3-Liter Ecotec3 L84 V8 (Gasoline) – Features variable valve-timing and direct injection, and produces an SAE-certified 355 horsepower / 265 kilowatts @ 5600 RPM with 383 lb-ft / 519 newton meters of torque @ 4100 RPM.