2026 GMC Sierra 3500 HD Crew Cab AT4 4WD
2026 GMC Sierra 3500 HD Crew Cab AT4 4WD
Pricing
Base MSRP$75,395
Powertrain & Performance
Engine6.6L V8
Displacement6.6
Cylinder ConfigurationV8
Horsepower401 hp
Horsepower Peak RPM401 hp @ 5200
Torque464 lb-ft
Torque Peak RPM464 lb-ft @ 4000
ValvetrainVVT
Fuel InjectionDirect injection
Forced InductionNaturally aspirated
Recommended FuelRegular unleaded
Fuel Tank Capacity36 gal
Transmission & Drivetrain
Transmission10-Speed automatic
Final Drive Ratio3.73
Drive Type4WD
Electrified Powertrain
Powertrain TypeICE
Capability & Weights
Towing Capacity43500 (max for 6.6L config)
Payload4,334 lbs
Curb Weight6,823 lbs
GVWR10,950 lbs
Dimensions
Exterior Length250.75 in
Exterior Width81.85 in
Exterior Height80.87 in
Wheelbase159 in
Turning Diameter52.7 ft
Ground Clearance11.18 in
Interior Room
Seating Capacity6
Front Headroom43.03 in
Rear Headroom40.12 in
Front Legroom44.53 in
Rear Legroom43.40 in
Front Shoulder Room66.02 in
Rear Shoulder Room65.30 in
Front Hip Room61.18 in
Rear Hip Room60.24 in
Chassis & Suspension
SteeringSteering, Digital Variable Steering Assist, this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
BrakesBrakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Wheels20"
TiresTires, LT275/65R20 all-terrain, blackwall 1. Requires single rear wheels. 2. Requires single rear wheels. Included with (RFX) X31 Off-Road and Protection Package,
AWD / Drive SystemFour-wheel drive
Interior & Comfort
Driver SeatStandard
Ventilated SeatsStandard
Steering WheelStandard
Power Liftgate/TailgateStandard
Auto-Dimming MirrorStandard
Sunroof / MoonroofAvailable (optional)
Wireless Phone ChargingStandard
Air FilterStandard
Technology & Entertainment
Screen Size13.4"
NavigationStandard
OnStar / Connected ServicesStandard
Steering Wheel Audio ControlsStandard
Safety & Driver Assistance
AirbagsStandard
ABSStandard
Stability ControlStandard
Traction ControlStandard
Forward Collision AlertStandard
Automatic Emergency BrakingStandard
Adaptive Cruise Control / Super CruiseStandard
Lane Departure WarningStandard
Rear Vision / Surround Vision CameraStandard
Tire Pressure MonitorStandard
Rear Child Safety LocksStandard
Security SystemStandard
Exterior & Lighting
HeadlightsStandard
Daytime Running LightsStandard
Brake LightsStandard (LED)
GrilleAvailable (optional)
Warranty
Basic3 yr/36,000 mi
Powertrain5 yr/60,000 mi
Corrosion6 yr/100,000 mi
Roadside Assistance5 yr/60,000 mi
Packages & Options
Package 1Technology Package
Package 1 — IncludesTechnology Package, includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15" Diagonal Head-Up Display 1. Requires (PDO) AT4 Preferred Package. Included with (PDG) AT4 Premium Plus Package. 2. Included with (PEC) Denali Reserve Package.
Package 2Safety Alert Seat 1. Included and only available with (PED)
Package 2 — IncludesSafety Alert Seat 1. Included and only available with (PED) Sierra HD Pro Safety Plus Package. Requires (PCY) SLT Convenience Package and (A50) bucket seat.
Package 3Rear Cross Traffic Alert 1. Included and only available with
Package 3 — IncludesRear Cross Traffic Alert 1. Included and only available with (PQA) 1SA Pro Safety Plus Package. 2. Included and only available with (PED) Sierra HD Pro Safety Plus Package.
Available Colors
Exterior ColorsCoastal Dune; Onyx Black; Summit White; Cardinal Red; Sterling Metallic; Downpour Metallic; Titanium Rush Metallic; Glacier White Tricoat; Onyx Black; Sterling Metallic; Volcanic Red Tintcoat; Downpour Metallic; Titanium Rush Metallic
Interior ColorsJet Black; Dark Walnut / Slate; Jet Black with Kalahari accents; Atmosphere/Brownstone; Alpine Umber