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Basics
Condition
Interior Color
Exterior Color
Drivetrain
Transmission
Fuel
Engine
VIN
Stock Number
Mileage
Features
Safety
Backup Camera
Exterior
Alloy Wheels
Sunroof/Moonroof
Features
- 8 Cylinder Engine
- AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package (PQB) Driver Alert Package I (PDJ) Driver Alert II (PYU) 20 (50.8 cm) machined aluminum wheels with high gloss Black accents (CF5) power sunroof (CWM) Technology Package and (VXW) AT4 high clearance step LPO
- AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package
- (PQB) Driver Alert Package I
- (PDJ) Driver Alert II
- (PYU) 20" (50.8 cm) machined aluminum wheels with high gloss Black accents
- (CF5) power sunroof
- (CWM) Technology Package and (VXW) AT4 high clearance step
- LPO
- Back-Up Camera
- Diesel Fuel
- ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (445 hp [332 kW] @ 2800 rpm 910 lb-ft of torque [1220 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
- ENGINE
- DURAMAX 6.6L TURBO-DIESEL V8
- B20-DIESEL COMPATIBLE (445 hp [332 kW] @ 2800 rpm
- 910 lb-ft of torque [1220 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
- Sunroof / Moonroof
- Turbo/Supercharged
Seller's Comments
2021 GMC Sierra 2500HD AT4 -- Fully Loaded, Duramax Diesel Power, Off-Road Ready
Built for those who demand power, capability, and luxury, this 2021 GMC Sierra 2500HD AT4 is an off-road beast with premium refinements. Finished in Onyx Black, this heavy-duty truck is powered by the legendary 6.6L Duramax Turbo-Diesel V8, delivering 445 horsepower and a massive 910 lb-ft of torque. With its factory AT4 Premium Plus Package, Technology Package, and Driver Alert Packages, plus custom upgrades including 35-inch Nitto Ridge Grappler tires, 20-inch Fuel wheels, and FOX shocks, this Sierra 2500HD is ready for any adventure.
Power & Performance
- 6.6L Duramax Turbo-Diesel V8 -- Produces 445 hp and 910 lb-ft of torque for best-in-class towing capability.
- 10-Speed Automatic Allison® Transmission -- Provides smooth shifts and superior performance under heavy loads.
- B20-Diesel Compatible -- Designed for efficiency and durability.
- FOX Shocks -- Enhances off-road capability and ride quality.
- 35-Inch Nitto Ridge Grappler Tires -- Delivers exceptional traction on any terrain.
Rugged & Refined Exterior
- Onyx Black Paint -- A bold and commanding look.
- AT4 Premium Plus Package, including:
- 20-Inch Machined Aluminum Wheels with High Gloss Black Accents -- Sporty and aggressive styling.
- AT4 High Clearance Step (LPO) -- Provides easier cab access and rugged styling.
- Power Sunroof -- Adds an open-air experience to your drives.
- Wheelhouse Liners, Rear -- Protects against debris and enhances durability.
- Off-Road Ready -- Factory AT4 off-road suspension for superior performance.
Premium Interior & Comfort Features
- Wireless Phone Projection -- Seamless Apple CarPlay® & Android Auto? integration.
- Power Windows -- Driver's express up/down, front passenger express up/down, rear express down for added convenience.
- USB Ports (First & Second Row) -- Dual charge-only ports in the rear and two additional ports in the front for easy connectivity.
- AT4 Exclusive Interior Styling -- Premium materials with off-road-inspired accents.
Advanced Technology & Safety
- Technology Package, featuring:
- HD Surround Vision -- Provides a 360-degree view around the truck.
- Rear Camera Mirror -- Displays a live camera feed in the rearview mirror for better visibility.
- Head-Up Display (HUD) -- Projects essential driving information onto the windshield.
- Driver Alert Package I & II, including:
- Lane Departure Warning & Forward Collision Alert -- Keeps you aware of your surroundings.
- Rear Cross-Traffic Alert & Blind Zone Monitoring -- Enhances safety when maneuvering.
- Adaptive Cruise Control -- Maintains a safe following distance on the highway.
Why Choose This 2021 GMC Sierra 2500HD AT4?
This Sierra 2500HD AT4 is the ultimate combination of heavy-duty capability, premium luxury, and off-road toughness. With the Duramax Diesel
View More6720 Market Street
Wilmington, North Carolina 28405
(910) 218-1487
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