2026 GMC Sierra 2500

KEY FEATURES INCLUDE 11,350 lbs (5,148 Kg) GVWR, 20 Bright Face Wheels with Dark Painted Pockets - Includes Wheel covers: Chrome hub wheel covers,Wheels: 20 x 8.5-inch front and rear machined w/painted accents aluminum wheels, 3.42 Axle Ratio, 4-Way Manual Passenger Seat Adjuster - Includes Passenger seat direction: Front passenger seat with 4-way directional controls,Manual passenger seat controls: Passenger seat manual reclining and fore/aft control, 6 Rectangular Chromed Tubular Assist Steps, AM/FM Stereo with Premium GMC Infotainment System - Includes 6-Speaker Audio System Feature,Voice activated audio: Voice activated audio controls,Wireless streaming: Bluetooth® wireless audio streaming,Primary display size: 13.4 inch primary display,Primary display touchscreen: Primary monitor touchscreen,Handsfree: Bluetooth® handsfree wireless device connectivity, Black Badging Package - Includes Black Sierra Nameplates,Black GMC Emblems, Dual 220-Amps Primary and 170-Amps Auxiliary Alternators - Includes Alternator Type: Dual alternator, Duramax 6.6L Turbo-Diesel V8 Engine - Includes Capped Fuel Fill,10-Speed Automatic Transmission,Transmission: Allison 10-speed automatic,Overdrive transmission,Lock-up transmission,Transmission electronic control,Transmission Type: Automatic,Dual Heavy-Duty 70 Amp Battery,Battery type: Dual lead acid batteries,Battery run down protection,Accessory power: Retained accessory power,Engine Location: Front mounted engine,Fuel Type: Diesel,Ignition: Compression ignition system,Engine Mounting direction: Longitudinal mounted engine,Engine block material: Iron engine block,Cylinder head material: Aluminum cylinder head,DEF fluid gauge: Diesel exhaust fluid (def) gauge,Low level warnings: Low level warning for oil, coolant, fuel, washer fluid, brake fluid and diesel exhaust fluid (DEF),Engine: Duramax 6.6L V-8 diesel direct injection, intercooled turbo, diesel, engine with 470HP,Engine Short: Duramax 6.6L V-8,Engine Configuration: Duramax V8,Compressor: Intercooled turbo, Engine Block Heater, Exhaust Brake, Federal Emissions Requirements, Front 40/20/40 Split-Bench Seats - Includes Split front seats: 40-20-40 split-bench front seat,Under seat tray front: Locking front under seat tray,Front seat type: Split-bench front seat,Armrests front center: Front seat center armrest,Armrests front storage: Front seat armrest storage, Front License Plate Kit, Gooseneck/5th Wheel Prep Package - Includes Towing wiring harness: Trailer wiring harness,Towing prep: 5th wheel and gooseneck prep, LT275/65R20 AT BW Tires - Includes Tires: LT275/65SR20 AT BSW front and rear tires, LT275/70R18 AT BW Spare Tire, Pickup Box, Preferred Equipment Group 3SA - Includes OnStar Services Capable,120-Volt Bed Mounted Power Outlet,4-Way Manual Driver Seat Adjuster,2-Speed Electronic Shift Transfer Case,Transfer case: Electronic transfer case shift,Two-Speed Transfer Case,SiriusXM with 360L Trial Subscription,Deep-Tinted Glass,Chrome Surround Grille with Chrom