New 2026 Gmc Sierra 2500 HD AT4

Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel Compatible, At4 Premium Plus Package, Assist Steps; Power Retractable; Black, Technology Package, Sunroof; Power, Sun/Moonroof, Leather Seats, Navigation System, At4 Preferred Package, Alternator; 220 Amp, Engine Block Heater, Keyless Start, Lamps; Smoked Amber Roof Marker; (LED), Cooled Front Seat(S), At4 Preferred Equipment Group, Audio System; 13.4" Diagonal Premium GMC Infotainment System With Google Built In Apps Such As Navigation And Voice Assistance, Emissions Override; California, Emissions; Federal Requirements, Exhaust Brake, Gvwr; 11;350 Lbs. (5148 Kg), Jet Black With Kalahari Accents; Perforated Front Leather Seat Trim, Rear Axle; 3.42 Ratio, Rear Camera Mirror, Seats; Front Bucket, Summit White, Tires; Lt275/65R20 All-Terrain; Blackwall, Transmission; 10-Speed Automatic, Wheels; 20" (50.8 Cm) High Gloss Black Aluminum Wheels, Window; Power; Rear Sliding With Rear Defogger, Winter Grille Cover.