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2021 GMC SIERRA 1500 AT4 4WD 3.0L DURAMAX DIESEL AT4 PREFERRED PACKAGE BOSE AUDIO PROGRADE TRAILERING SUMMIT WHITE LANCASTER PA
This 2021 GMC Sierra 1500 AT4 4WD is powered by the 3.0L Duramax turbo-diesel paired with a 10-speed automatic transmission. Finished in Summit White with a Jet Black and Kalahari leather interior, this well-equipped AT4 features the Preferred Package, ProGrade Trailering System, Bose premium audio, navigation, and heated and ventilated front seats.
The 3.0L Duramax produces 277 horsepower and 460 lb-ft of torque, delivering excellent low-end pulling power and impressive fuel efficiency. Rated at 22 MPG city and 26 MPG highway, this diesel is an excellent choice for buyers who want strong towing performance and comfortable long-distance driving.
The AT4 is built for more than just highway travel. Its factory off-road suspension, automatic locking rear differential, Hill Descent Control, heavy-duty air filter, and signature red recovery hooks provide added capability for hunting properties, campsites, and rough terrain.
Inside, the AT4 offers a premium cabin with distinctive Jet Black and Kalahari leather seating, heated and ventilated front seats, a heated steering wheel, and a spacious center console. The power-sliding rear window and remote start add convenience throughout the year.
The AT4 Preferred Package adds desirable technology and comfort features, including a premium Bose 7-speaker sound system, wireless charging, and additional convenience equipment. GMC's premium infotainment system with navigation keeps you connected wherever the road takes you.
For towing, this Sierra is exceptionally well-equipped with the ProGrade Trailering System, integrated trailer brake controller, Hitch Guidance with Hitch View, and an in-vehicle trailering app. These features make connecting and managing a trailer easier, whether you're hauling equipment, a boat, or a camper.
Additional equipment includes a factory spray-on bedliner with AT4 logo, LED cargo lighting, 120-volt bed and interior outlets, rear wheelhouse liners, premium all-weather floor liners, and rear USB charging ports.
One of the biggest highlights of this truck is its exceptionally low mileage. The odometer is an impressive 45,007 miles below the market average, a major advantage when shopping for a 2021 diesel pickup.
With its 3.0L Duramax, AT4 off-road capability, premium leather interior, ProGrade towing technology, and remarkably low mileage, this Sierra offers an outstanding combination of comfort, efficiency, and versatility.
See it today at Mark Martin Motors in Ephrata, serving Lancaster, Lititz, Lebanon, and York. Call or message us to check availability or schedule your test drive.