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2021 GMC Sierra 3500HD AT4

SOLD

52,365 Miles
1GT49VEY1MF122341
Stock #: KM122341
Drivetrain   4WD
Transmission   Allison 10-Speed Shiftable Automatic
Engine   8cyl - 6.6L
Fuel Type   Bio_diesel
Interior   Jet Black w/Kalahari Accents
Exterior   Summit White

Elevate your driving experience with the robust and refined 2021 GMC Sierra 3500HD AT4, a powerhouse of performance and luxury that stands out in its Summit White exterior. Designed for those who demand strength without compromising style, this truck features a Crew Cab configuration providing spacious comfort for all passengers. Equipped with a formidable Duramax 6.6L Biodiesel Turbo V8 engine producing an impressive 445hp and 910 ft-lb of torque, paired with an Allison 10-Speed Shiftable Automatic transmission, it's ready to tackle any challenge on or off-road.

The Sierra AT4 isn't just about power; it's also about pioneering technology and convenience. With features like the Rear Camera Mirror offering an auto-dimming rearview mirror that doubles as a camera display, you gain enhanced visibility for safer maneuvering. The Gooseneck/5th Wheel Package adds versatility for towing heavy loads seamlessly while ensuring safety with its Trailer Tire Pressure Monitor System. Additionally, enjoy the luxury of heated seats wrapped in leather, remote start capability, and a panoramic sunroof that brings natural light into the cabin at your command.

This vehicle is not only equipped to handle rugged landscapes but also designed to provide storage solutions such as Rear Under-Seat Storage and innovative utility through its Bed View Camera – perfect for keeping tabs on cargo or aiding in trailer hookups. With no accidents reported on CARFAX and thoughtful additions like Off-Road Assist Steps and Bluetooth connectivity enhancing both practicality and entertainment options onboard—every detail ensures peak satisfaction.

Experience what uncompromised capability feels like by visiting us today to test drive this exceptional GMC Sierra 3500HD AT4—the ultimate partner in reliability whether you're navigating city streets or exploring new terrains!

Call us today at (720) 390-7910 to speak with one of our Customer Experience Specialists, and schedule your private test drive appointment.

Optional Equipment

Engine
220 Amp Alternator
Safety
Rear Camera Mirror
Includes inside rearview auto-dimming rear camera mirror with full camera display.
Packages
Gooseneck / 5th Wheel Package
Includes hitch platform with tray to accept trailer ball, gooseneck or 5th wheel hitch, bed mounted 7-pin trailer harness, and bed view camera.
Drivetrain
3.42 Rear Axle Ratio
Roof and Glass
Power Sunroof
Tires and Rims
Trailer Tire Pressure Monitor System
Includes module and set of 4 sensors.
Exterior Features
Off-Road Assist Steps
Includes 3 in. black round tubular assist steps. Limited Promotion Option.
Towing and Hauling
Bed View Camera
Includes camera in the CHMSL which shows a view of the cargo bed and two trailer camera provisions.
Convenience Features
Rear Under-Seat Storage
Includes composite storage bin with lockable lid under the rear seat. Limited Promotion Option.

Equipment 

Please Note: The equipment listed above and below is the configuration of the vehicle as originally sold. While we make every effort to provide accurate information, some features listed may vary due to features being added, changed or removed during previous ownership. It is the buyer's responsibility to verify all desired features and equipment are present prior to purchase.


Seats
Driver seat: heated, ventilated
Driver seat power adjustments: height, lumbar, reclining, 10
Front headrests: adjustable, 2
Front seat type: bucket
Passenger seat: heated, ventilated
Passenger seat power adjustments: height, lumbar, reclining, 10
Rear headrests: adjustable, 3
Rear seat: heated
Rear seat folding: folds up
Rear seat type: 60-40 split bench
Upholstery: leather-trimmed
Upholstery accents: perforated
Brakes
ABS: 4-wheel
Braking assist:
Electronic brakeforce distribution:
Electronic parking brake: auto off
Front brake diameter: 14.0
Front brake type: ventilated disc
Front brake width: 1.57
Power brakes:
Rear brake diameter: 14.2
Rear brake type: ventilated disc
Rear brake width: 1.34
Engine
Alternator: 170 amps
Auxiliary oil cooler:
Battery: heavy duty, maintenance-free
Battery rating: 720 CCA
Battery saver:
Lights
Daytime running lights: LED
Exterior entry lights: approach lamps, puddle lamps
Front fog lights: LED
Headlights: LED, auto delay off, auto on/off, wiper activated
Taillights: LED
Safety
Camera system: rearview
Check rear seat reminder:
Child safety door locks:
Child seat anchors: LATCH system
Programmable safety key:
Rearview monitor: in dash
Airbags
Airbag deactivation: occupant sensing passenger
Front airbags: dual
Side airbags: front
Side curtain airbags: front, rear
Mirrors
Side mirror adjustments: power, power folding, power telescoping, reverse gear tilt
Side mirrors: auto-dimming, heated, integrated turn signals
Towing mirrors:
Windows
Front wipers: variable intermittent
Power windows: safety reverse
Tinted glass:
Window defogger: rear
Security
Anti-theft system: alarm, vehicle immobilizer
Power door locks: anti-lockout, auto-locking
Seatbelts
Emergency locking retractors: front
Front seatbelts: 3-point
Rear seatbelts: 3-point
Seatbelt pretensioners: front
Seatbelt warning sensor: front
Drivetrain
4WD selector: electronic hi-lo
4WD type: part time w/ on demand setting
Axle ratio: 3.73
Locking differential: rear
Suspension
Front shock type: twin-tube gas
Front spring type: torsion bars
Front stabilizer bar: diameter 35 mm
Front suspension classification: independent
Front suspension type: upper and lower control arms
Rear shock type: twin-tube gas
Rear spring type: leaf
Rear suspension classification: solid live axle
Rear suspension type: multi-leaf
Tuned suspension: off-road
Telematics
Driver assistance app: roadside assistance
Electronic messaging assistance: voice operated, with read function
Phone: voice operated
Satellite communications: OnStar, voice guided directions
Smart device app compatibility: myGMC with Connected Access
Smart device app function: maintenance status
Wifi: hotspot
Wireless data link: Bluetooth
Audio System
Antenna type: diversity, mast
Auxiliary audio input: Bluetooth, USB, iPod/iPhone, jack, memory card slot
Radio: AM/FM, HD radio, touch screen display, voice operated
Radio data system:
Satellite radio: SiriusXM
Speed sensitive volume control:
Total speakers: 6
Tires and Rims
Spare tire mount location: underbody
Spare tire size: full-size
Spare wheel type: steel
Tire Pressure Monitoring System:
Tire type: all terrain
Wheels: painted aluminum
Instrumentation
Clock:
Compass:
Digital odometer:
Engine hour meter:
External temperature display:
Fuel economy display: MPG, range
Gauge: oil pressure, tachometer
Instrument cluster screen size: 4.2 in.
Multi-function display:
Trip odometer:
Warnings and reminders: coolant temperature warning, lamp failure, low battery, low fuel level, low oil pressure, maintenance due
Air Conditioning
Air filtration:
Front air conditioning: automatic climate control
Front air conditioning zones: dual
Rear vents: second row
Comfort Features
Armrests: rear center with cupholders, rear folding
Door trim: leather
Floor mat material: rubber/vinyl
Floor material: carpet
Floor mats: front, rear
Heated steering wheel:
Steering wheel trim: leather
Exterior Features
Bumper detail: rear step
Door handle color: body-color
Exhaust tip color: stainless steel
Fender lip moldings: black
Front bumper color: body-color
Grille color: black, black surround
Hood scoop:
Mirror color: black
Pickup bed light: LED
Pickup bed liner: spray-on
Rear bumper color: body-color
Skid plate(s): front, rear
Tailgate: lift assist, multi-function split-folding, power locking, power open, removable, step
Window trim: black
Towing and Hauling
Auxiliary transmission fluid cooler:
Pickup bed cargo management: tie-down anchors
Tow hooks: front
Tow/Haul mode:
Trailer brake controller:
Trailer hitch:
Trailer wiring: 4-pin, 7-pin
Convenience Features
Assist handle: front, rear
Capless fuel filler system:
Center console: front console with armrest and storage
Cruise control:
Cupholders: front, rear
Easy entry: power driver seat
Memorized settings: 2 driver, driver seat, side mirrors
Multi-function remote: panic alarm, proximity entry system
One-touch windows: 4
Overhead console: front
Power outlet(s): 115V cargo area, 115V front, 12V front, 12V rear, USB front, USB rear
Power steering: variable/speed-proportional
Power windows: lockout button
Push-button start:
Reading lights: front, rear
Rearview mirror: auto-dimming
Remote engine start:
Steering wheel: tilt and telescopic
Steering wheel mounted controls: audio, cruise control, multi-function, phone, voice control
Storage: door pockets, front seatback, under rear seats
Vanity mirrors: dual illuminating
In Car Entertainment
Connected in-car apps: app marketplace integration
Infotainment: GMC Infotainment System
Infotainment screen size: 8 in.
Smartphone integration: wireless Android Auto, wireless Apple CarPlay
Stability and Traction
Hill holder control:
Off-road driving assist: hill descent
Roll stability control:
Stability control:
Traction control:
Trailer stability control:
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