2026 GMC Sierra 3500 HD

Condition New
Exterior Black
Transmission Automatic
Drive Train Four-wheel Drive
Trim AT4
Engine Diesel
6.6L V8
Brakes 4-Wheel Anti-Lock Brakes

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2026 Sierra 3500 HD

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Vehicle Overview

Practical, stylish, Onyx Black utility

Introducing the 2026 AT4 in striking Black — the perfect balance of rugged capability and premium comfort. Built for the trail and the commute: standard 4WD with locking differential, traction and stability control, and ABS for confident handling. Step inside to heated leather front seats, a heated leather-wrapped steering wheel, power-adjustable seats with lumbar support, and a premium subwoofer for crisp sound. Convenience features like keyless entry and remote start with climate control, automatic headlights, LT275/65R20 tires and a full‑size spare round out the package. Backed by strong warranties (3yr/36k basic, 5yr/60k powertrain, 6yr/100k rust) — stop in today and experience the AT4 in Black for yourself.
  • Checkmark Bold, sleek stance
  • Checkmark Striking, premium vibe
  • Checkmark Beastly performance
  • Checkmark Head-turning silhouette

Vehicle Equipment

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    Child Safety Door Locks
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    Keyless Entry
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    Air Conditioning
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    Front Heated Seat
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    Leather Seat
Standard Equipment
Child Safety Door Locks
Vehicle Anti-Theft
4WD/AWD
ABS Brakes
Locking Differential
Traction Control
Vehicle Stability Control System
Driver Airbag
Front Side Airbag
Front Side Airbag With Head Protection
Front Side Airbag With Head Protection
Passenger Airbag
Electronic Parking Aid
Keyless Entry
Remote Ignition
Air Conditioning
Separate Driver/Front Passenger Climate Controls
Cruise Control
Tachometer
Heated Steering Wheel
Leather Steering Wheel
Steering Wheel Mounted Controls
Telescopic Steering Column
Tire Pressure Monitor
Trip Computer
AM/FM Radio
Subwoofer
Driver Multi-Adjustable Power Seat
Front Heated Seat
Front Power Lumbar Support
Leather Seat
Passenger Multi-Adjustable Power Seat
Automatic Headlights
Daytime Running Lights
Full Size Spare Tire
Power Windows
Heated Exterior Mirror
Electrochromic Interior Rearview Mirror
Anti-Brake System
4-Wheel ABS
Steering Type
R&P
Front Brake Type
Disc
Rear Brake Type
Disc
Front Suspension
IND
Rear Suspension
IND
Front Spring Type
Coil
Rear Spring Type
Coil
Tires
Lt275/65r20
Front Headroom
43.00 In.
Rear Headroom
40.10 In.
Front Legroom
44.50 In.
Rear Legroom
43.40 In.
Front Shoulder Room
66.00 In.
Rear Shoulder Room
65.30 In.
Front Hip Room
61.20 In.
Rear Hip Room
60.20 In.
Curb Weight-automatic
7,417 Lbs
Overall Length
250.80 In.
Wheelbase
159.00 In.
Ground Clearance
11.20 In.
Overall Length
250.80 In.
Standard Seating
5

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