Price includes dealer fee of $799. Does not include state tax, title and license fees.
- 3.0L Duramax Diesel I-6 Engine with 277 hp and 460 lb-ft of torque
- 10-Speed Automatic Transmission with 4WD
- All-Weather Floor Liners with AT4 Logo
- Spray-On Pickup Bed Liner with AT4 Logo
- ProGrade Trailering System with Integrated Trailer Brake Controller
- Heated and Ventilated Premium Leather Front Seats
- GMC Infotainment System with Apple CarPlay and Android Auto
- SiriusXM Satellite Radio with 360L
- Remote Vehicle Starter System
- Rear Underseat Storage with Lockable Composite Bin
- Heated Steering Wheel
- Auto-Dimming Rear-View Mirror
- HD Rear Vision Camera
- 18-Inch Machined Aluminum Wheels with Goodyear Wrangler Duratrac Tires
- Hill Descent Control and Off-Road Suspension
This 2021 GMC Sierra 1500 AT4 delivers the capability you need with a refined diesel engine that provides impressive torque for hauling and towing. The Duramax turbocharged I-6 engine combines efficiency with the pulling power serious truck owners demand, achieving 22 city and 26 highway mpg while maintaining substantial work capacity.
The AT4 trim is engineered for adventure beyond the pavement. With off-road suspension, hill descent control, and red recovery hooks, this truck handles challenging terrain with confidence. The four-wheel-drive system ensures traction in varied conditions, while the integrated trailer brake controller and hitch guidance technology make towing straightforward and safe.
Inside, you'll find comfort features designed for long drives and daily use. The heated and ventilated leather seats adjust to your preference, while the heated steering wheel adds warmth during cold starts. The GMC infotainment system connects seamlessly with your smartphone through Apple CarPlay and Android Auto, and SiriusXM satellite radio keeps you entertained on any journey.
Practicality is built into every detail. The spray-on bed liner protects your cargo area, while underseat storage provides secure spaces for tools and gear. All-weather floor liners preserve your interior, and the rear underseat storage bin offers convenient lockable compartments for valuables.
This Sierra AT4 arrives ready for work and weekend adventures. Whether you're managing job site demands or exploring remote trails, this truck combines diesel efficiency with genuine off-road capability and modern comfort.
We invite you to experience this capable truck firsthand. Contact us today to schedule a test drive and discover why the Sierra 1500 AT4 is the right choice for your needs.
Used 2021 GMCSierra 1500 AT4
- Diesel
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Odometer
- 129,623 miles
- Body/Seating
- Truck/5 seats
- Seats
- 5 seats
- Fuel Economy
- 16/21 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- I-6 cyl
- VIN
- 1GTU9EET4MZ414522
- Stock Number
- RT058663Q
Highlighted Features
- Leather upholstery
- Automatic temperature control
- 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
- Heated steering wheel
Included Packages & Accessories
- Preferred Equipment Group 4SB
- Trailering Package
- 6 Speakers
- 6-Speaker Audio System Feature
- AM/FM radio: SiriusXM with 360L
- Not Equipped w/HD Radio
- Premium audio system: GMC Infotainment System
- Radio data system
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- SiriusXM w/360L
- Steering Wheel Audio Controls
- Air Conditioning
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Memory seat
- Power driver seat
- Power Front Passenger Windows w/Express Up/Down
- Power Front Windows w/Driver Express Up/Down
- Power Rear Windows w/Express Down
- Power steering
- Power windows
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Auto-Locking Rear Differential
- Electrical Lock Control Steering Column
- Manual Tilt-Wheel & Telescoping Steering Column
- Off-Road Suspension
- 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
- Keyless Open & Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Power Door Locks
- Brake assist
- Electronic Stability Control
- Hill Descent Control
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Theft Deterrent System (Unauthorized Entry)
- Speed control
- 170 Amp Alternator
- 220 Amp Alternator
- Auxiliary External Transmission Oil Cooler
- Engine Block Heater
- Heavy-Duty Air Filter
- Auto-dimming door mirrors
- Body-Color Surround Grille
- Bumpers: body-color
- Front License Plate Kit
- Heated door mirrors
- LED Cargo Area Lighting
- Power door mirrors
- ProGrade Trailering System
- Rear step bumper
- Rear Wheelhouse Liners
- Spray-On Pickup Bed Liner w/AT4 Logo
- 2 USB Ports
- 2 USB Ports (1st Row)
- 4.2" Diagonal Color Display Driver Info Center
- 4G LTE Wi-Fi Hotspot Capable
- All-Weather Floor Liners w/AT4 Logo (LPO)
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Color-Keyed Carpeting Floor Covering
- Compass
- Driver door bin
- Driver vanity mirror
- Floor-Mounted Center Console
- Front Prem Floor Liners w/Removable Carpet Insert
- Front reading lights
- GMC Connected Access Capable
- HD Rear Vision Camera
- Heated steering wheel
- Illuminated entry
- Not Equipped w/Heated 2nd Row Outboard Seats
- OnStar & GMC Connected Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Dual USB Charging-Only Ports
- Rear Prem Floor Liners w/Removable Carpet Insert
- Rear reading lights
- Rear seat center armrest
- Rear Underseat Storage (LPO)
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front Bucket Seats
- Front Center Armrest
- Heated Driver & Front Outboard Passenger Seating
- Heated front seats
- Perforated Leather-Appointed Front Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated Driver & Front Passenger Seats
- Ventilated front seats
- Passenger door bin
- Hitch Guidance
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
- Integrated Trailer Brake Controller
- Red Recovery Hooks
- Trailer Tire Pressure Monitor System
- 18" x 8.5" Machined Aluminum Wheels
- Alloy wheels
- Deep-Tinted Glass
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
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
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front 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 deactivation
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 18mpg
- Fuel economy highway: 21mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 276mm (10.9")
- 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
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,990mm (78.3")
- Exterior length: 5,885mm (231.7")
- 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: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,655mm (65.2")
- Wheelbase: 3,744mm (147.4")
- 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