GMC Sierra 4WD 2021
Versions : Auto 10-spd, 8 cyl, 6.2 L, SIDI; Stop-Start
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About the 2021 GMC Sierra 4WD
The 2021 GMC Sierra 4WD is an SUV or crossover that offers 16/20 MPG city/highway, plus a 17 MPG combined estimate. Available trim information includes Auto 10-spd, 8 cyl, 6.2 L, SIDI; Stop-Start, which helps narrow the exact configuration when comparing listings.
Under the hood, it features an 8-cylinder 6.2L engine paired with an Automatic 10-spd transmission. The 4-Wheel Drive drivetrain and Premium fuel setup give shoppers a quick snapshot of expected driving feel, ownership costs, and everyday usability.
With a Premium engine and 4-Wheel Drive drivetrain, the 2021 GMC Sierra 4WD is suited for family trips, cargo flexibility, and all-weather errands. Before buying, compare service history, real-world MPG, tire condition, and feature differences across trims so the listing matches the specs shown here.
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Find This Car
Ready to buy? Find a 2021 GMC Sierra 4WD near you.
Compare live listings, check current asking prices, and see what is available before you head to a dealership.