7L Turbo I4 6. 2L V8 Maximum Towing Capacity 7,600 lbs 13,300 lbs Maximum Payload Capacity 1,610 lbs 1,730 lbs GVWR 6,935 lbs 7,035 lbs The AT4 package further enhances capability with its Multimatic DSSV dampers, which provide exceptional control over body roll and pitch, whether on the highway or rough terrain.
2020 GMC Sierra 1500 AT4 Bed Configuration Options
The signature black grille, paired with unique LED headlamps and fender flares, immediately signals its off-road pedigree. Performance and Capability Under the hood, the 2020 Sierra 1500 AT4 offers compelling power and efficiency with its standard 2.
This specific trim level targets buyers who refuse to compromise, demanding a vehicle that performs impeccably whether navigating urban commutes or tackling challenging backcountry terrain. The 2020 GMC Sierra 1500 AT4 represents the pinnacle of full-size truck capability, merging robust towing capacity with refined on-road dynamics and serious off-road readiness.
2020 GMC Sierra 1500 AT4 Bed Configuration Options
7-liter turbocharged four-cylinder engine, producing 310 horsepower and 400 lb-ft of torque. Distinctive Styling Elements Black-finished front and rear bumpers with integrated protection.
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