2021 GMC Sierra 1500 AT4
- Used
- Diesel
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The overview
- Exterior Color
- Onyx Black
- Interior Color
- JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHE
- Odometer
- 118,581 miles
- Fuel Economy
- 14/19 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: Duramax 3.0L, Turbo-Diesel, Inline 6 Cylinder
- VIN
- 3GTU9EET8MG400364
- Stock Number
- K29009B
The full specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 24 gal
- Horsepower: 277
Notes from the dealer
This 2021 GMC Sierra 1500 AT4 combines rugged capability with refined comfort in a truck built for both work and weekend adventures. The Crew Cab Short Box design offers versatile cargo space while maintaining excellent maneuverability, and the striking black exterior with Jet Black interior accented in Kalahari creates a premium aesthetic. Powered by a 3.0L I-6 Diesel Turbocharged engine delivering EPA-estimated 22 city / 26 highway MPG with 10-speed automatic transmission and 4WD, this Sierra handles challenging terrain with confidence. Actual mileage may vary.- Spray-On Pickup Bed Liner w/AT4 Logo- ProGrade Trailering System with Integrated Trailer Brake Controller- 20 Machined Aluminum Wheels with Carbon Grey Metallic Accents- Heated and Ventilated Front Seats with Perforated Leather Trim- Remote Vehicle Starter System with Keyless Open & Start- Power Windows (Front and Rear with Express Controls)- 120-Volt Bed and Instrument Panel Power Outlets- Hill Descent Control and Auto-Locking Rear Differential- 4G LTE Wi-Fi Hotspot and GMC Connected Services Capable- Steering Wheel Audio Controls with SiriusXM and Premium Infotainment SystemThis AT4 is loaded with premium features that elevate everyday driving and serious towing. The Preferred Equipment Group 4SB and Trailering Package deliver comprehensive capability whether you're hauling equipment or exploring backcountry, while the engine block heater and auxiliary transmission oil cooler ensure reliable performance in demanding conditions. With over 118,000 miles, this truck has proven durability and is ready for your next chapter.We invite you to visit our showroom to experience the Sierra 1500 AT4 firsthand and discuss financing options that work for you.