This 2021 GMC Sierra 2500HD AT4 delivers the capability and refinement you expect from a premium heavy-duty truck. With its commanding presence and proven engineering, this truck is ready to handle whatever demands you place on it, whether that means navigating job sites or tackling weekend adventures with confidence.
- 6.6L V8 Engine with 6-Speed Automatic and 4WD
- X31 Off-Road Package with Hill Descent Control
- 20" Machined Aluminum Wheels with High Gloss Black Accents
- Preferred Equipment Group 4SB
- LED Smoked Amber Roof Marker Lamps
- Integrated Trailer Brake Controller with Hitch Guidance
- SiriusXM with 360L and Premium GMC Infotainment System
- Apple CarPlay and Android Auto Integration
- Heated and Ventilated Front Bucket Seats with Perforated Leather
- Heated 2nd Row Outboard Seats
- Spray-On Pickup Box Bed Liner with AT4 Logo
- HD Rear Vision Camera
- 4G LTE Wi-Fi Hotspot Capable
- Keyless Open and Start
- Remote Vehicle Starter System
New Brakes Installed
New Tires Installed
The AT4 package elevates this Sierra with purposeful design elements and functional upgrades specifically engineered for serious truck work. The off-road suspension, two-speed active transfer case, and Hill Descent Control work together to provide genuine capability on challenging terrain. Red recovery hooks, black surround grille, and rear wheelhouse liners contribute both form and function to this truck's rugged character.
Inside the cabin, you'll find a well-appointed space designed for long days on the road or the job site. The heated and ventilated front bucket seats with perforated leather deliver comfort in any season, while the premium GMC Infotainment System with Apple CarPlay and Android Auto keeps you connected. Dual-zone automatic climate control, a heated steering wheel, and multiple USB charge ports throughout the cabin mean you and your passengers stay comfortable during every drive.
The truck's versatility extends from the driver's seat to the bed. The 120-volt instrument panel power outlet and 120-volt bed-mounted power outlet let you power tools and equipment directly from your truck. The spray-on bed liner with AT4 branding protects your investment while maintaining a professional appearance. Integrated trailer brake controller with hitch guidance simplifies towing tasks, whether you're managing single trips or regular hauling duties.
This Sierra 2500HD represents a solid investment in a workhorse that balances raw capability with daily usability. With fresh brakes and tires already installed, you can drive home with confidence knowing this truck is ready for the road ahead. Visit us today to experience this truck's blend of power, connectivity, and practicality firsthand.
Used 2021 GMCSierra 2500HD AT4
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black
- Odometer
- 117,000 miles
- Body/Seating
- Truck/5 seats
- Seats
- 5 seats
- Transmission
- 6-Speed Automatic
- Drivetrain
- 4WD
- Engine
- 6.6L V8
- VIN
- 1GT49PE7XMF310214
- Stock Number
- 6GT0165A
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Ventilated front seats
- Perimeter/approach lights
- Remote keyless entry
Included Packages & Accessories
- 6 Speakers
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear window defroster
- Memory seat
- Power driver seat
- Power steering
- Power windows
- Remote keyless entry
- Steering wheel mounted audio controls
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Front anti-roll bar
- Front wheel independent suspension
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Pickup Box
- Brake assist
- Electronic Stability Control
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Speed control
- Heavy-Duty 80 Amp Battery
- Auto-dimming door mirrors
- Bumpers: body-color
- Front License Plate Kit
- Heated door mirrors
- LED Smoked Amber Roof Marker Lamps
- Power door mirrors
- Rear step bumper
- Turn signal indicator mirrors
- 2 USB Ports (1st Row)
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Compass
- Driver door bin
- Driver vanity mirror
- Front reading lights
- Heated steering wheel
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- Front Center Armrest
- Heated front seats
- Heated rear seats
- Perforated Leather-Appointed Front Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated front seats
- Passenger door bin
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
- 18" Machined Aluminum Wheels
- 20" Machined Aluminum Wheels
- Alloy wheels
- Variably intermittent wipers
- 3.73 Rear Axle Ratio
- BACKUP CAMERA
- BLUETOOTH WIRELESS / HANDS FREE
- NEW TIRES
- NEW BRAKES
- ***TOW PACKAGE / TRAILER HITCH***
- Preferred Equipment Group 4SB
- X31 Off-Road Package
- 6-Speaker Audio System Feature
- HD Radio
- Radio: AM/FM w/Premium GMC Infotainment System
- SiriusXM w/360L
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Power Windows w/Driver Express Up/Down
- Remote Vehicle Starter System
- Manual Tilt-Wheel/Telescoping Steering Column
- Off-Road Suspension
- Electrical Lock Control Steering Column
- Keyless Open & Start
- Power Door Locks
- Hill Descent Control
- Unauthorized Entry Theft-Deterrent System
- 2-Speed Active Transfer Case
- LED Cargo Area Lighting
- Painted Black Surround Grille
- Rear Wheelhouse Liners
- Red Recovery Hooks
- Spray-On Pickup Box Bed Liner w/AT4 Logo
- 2 USB Ports
- 2nd Row Dual USB Charge-Only Ports
- 4.2" Diagonal Color Display Driver Info Center
- 4G LTE Wi-Fi Hotspot Capable
- Compass Located In Instrument Cluster
- Floor-Mounted Center Console
- Front Prem Floor Liners w/Removable Carpet Insert
- GMC Connected Access Capable
- HD Rear Vision Camera
- OnStar & GMC Connected Services Capable
- Rear Prem Floor Liners w/Removable Carpet Insert
- Wireless Phone Projection
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front Bucket Seats
- Heated & Ventilated Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Heated Driver & Front Outboard Passenger Seats
- Integrated Trailer Brake Controller
- Deep-Tinted Glass
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Smart device integration: Android Auto/Apple CarPlay
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch receiver
- Trailer sway control
- Turn signal indicator mirrors
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,023mm (79.7")
- Exterior length: 6,352mm (250.1")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,013mm (39.9")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,037mm (158.9")
- Appearance: analog
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Standard Features
- 6-Speaker Audio System Feature
- SiriusXM w/360L
- HD Radio
- Radio: AM/FM w/Premium GMC Infotainment System
- Wireless Phone Projection
- Floor-Mounted Center Console
- Compass Located In Instrument Cluster
- 4.2" Diagonal Color Display Driver Info Center
- Electric Rear-Window Defogger
- Power Door Locks
- Remote Vehicle Starter System
- Keyless Open & Start
- Front Prem Floor Liners w/Removable Carpet Insert
- Rear Prem Floor Liners w/Removable Carpet Insert
- OnStar & GMC Connected Services Capable
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 2 USB Ports
- 2nd Row Dual USB Charge-Only Ports
- HD Rear Vision Camera
- Spray-On Pickup Box Bed Liner w/AT4 Logo
- Heated Driver & Front Outboard Passenger Seats
- Heated & Ventilated Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Steering Wheel Audio Controls
- Manual Tilt-Wheel/Telescoping Steering Column
- Electrical Lock Control Steering Column
- Unauthorized Entry Theft-Deterrent System
- Deep-Tinted Glass
- Painted Black Surround Grille
- Power Windows w/Driver Express Up/Down
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
- LED Cargo Area Lighting
- Red Recovery Hooks
- Rear Wheelhouse Liners
- X31 Off-Road Package
- Integrated Trailer Brake Controller
- 2-Speed Active Transfer Case
- 4G LTE Wi-Fi Hotspot Capable
- GMC Connected Access Capable
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Driver Memory
- Off-Road Suspension
- Hill Descent Control
Dealer Notes
KBB.com Consumer Reviews
