Vehicle Details

2021 GMC Sierra 2500HD AT4

Pre-Owned
Stock #: X250844B    VIN: 1GT49PEY8MF157213
$56,995

BASIC INFO
  • Condition Pre-Owned
  • Year 2021
  • Make GMC
  • Model Sierra 2500HD
  • Trim Level AT4
  • Engine Duramax 6.6L V8 Turbodiesel
  • Transmission 10-Speed Automatic
  • Body Style 4D Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents Leather
  • Mileage 71,308
  • Price $56,995
DEALER COMMENTS
Introducing the **2021 GMC Sierra 2500HD 4WD Crew Cab Standard Bed AT4**, a heavy-duty truck that perfectly merges luxury, safety, and advanced technology, making it an ideal choice for those who seek both power and comfort. This exceptional vehicle boasts a range of impressive packages, including the AT4 Premium Plus Package, Driver Alert Package I, Driver Alert Package II, Technology Package, Preferred Equipment Group 4SB, and AT4 Preferred Package.

The **AT4 Premium Plus Package** elevates your driving experience with its luxurious amenities and advanced safety features. Complemented by the Driver Alert Package I, this truck includes cutting-edge systems like Remote Activated Perimeter Approach Lighting and Lane Change Alert with Side Blind Zone Alert, enhancing your visibility and ensuring personal safety while driving. The Driver Alert Package II takes safety a step further with Predictive Brake Assist and Forward Collision Alert with Automatic Braking, keeping you and your passengers secure on the road.

For tech-savvy drivers, the **Technology Package** is a game-changer, featuring an auto-dimming rearview mirror, head-up display, and an HD Rear Vision Camera with Hitch View, which significantly simplifies parking and towing. The **Preferred Equipment Group 4SB** enhances your connectivity options with Apple CarPlay and Android Auto, allowing seamless integration with your favorite smart devices for a more enjoyable driving experience.

The **AT4 Preferred Package** takes luxury to the next level, incorporating premium Bose speakers and an extensive camera system that provides an aerial view, ensuring optimal visibility in all directions. Under the hood, the robust Duramax 6.6L V-8 diesel engine delivers a staggering 445HP, paired with an Allison 10-speed automatic transmission for smooth and responsive handling.

Innovative features such as a mobile hotspot keep you connected on the go, while ventilated front seats provide comfort during hot weather. The forward collision mitigation system continuously monitors your surroundings, preparing the vehicle to help prevent potential accidents, offering peace of mind for all passengers.

To summarize, the **2021 GMC Sierra 2500HD 4WD Crew Cab Standard Bed AT4** is a remarkable fusion of power, luxury, and cutting-edge technology. This truck is perfect for those who demand the best, whether for tough jobs or weekend adventures. Elevate your driving experience with this extraordinary vehicle, designed to impress and deliver outstanding performance at every turn.

Harbor Chevy is the top destination for used vehicles in Southern California. We provide an exceptional buying experience centered on quality, value, and trust.A Century of Trust: Family-owned and proudly serving Long Beach, Los Angeles, and Orange County since 1923.

Vast & Diverse Inventory: An extensive selection of high-quality used cars, SUVs, Certified Pre-Owned Hyundais, and commercial vehicles.

Guaranteed Quality: Every vehicle receives a certified multi-point inspection, professional detailing, and comes with a clean-title guarantee.

Exclusive Powertrain Warranty: Select vehicles include our complimentary Lifetime Powertrain Warranty for long-term peace of mind.

Transparent Pricing & Easy Financing: We offer upfront, market-based prices and a streamlined financing process for all credit situations.
  • Equipment & Features
  • AT4 Preferred Package
  • AT4 Premium Plus Package
  • Driver Alert Package I
  • Driver Alert Package II
  • Preferred Equipment Group 4SB
  • Technology Package
  • X31 Off-Road Package
  • 6 Speakers
  • 6-Speaker Audio System Feature
  • AM/FM radio: SiriusXM with 360L
  • Bose Premium 7 Speaker Sound System
  • HD Radio
  • Premium audio system: Premium GMC Infotainment System
  • Radio: AM/FM w/Premium GMC Infotainment System
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • 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 steering
  • Power windows
  • Power Windows w/Driver Express Up/Down
  • Remote keyless entry
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Universal Home Remote
  • 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
  • Electrical Lock Control Steering Column
  • Front anti-roll bar
  • Front wheel independent suspension
  • Keyless Open & Start
  • Low tire pressure warning
  • Occupant sensing airbag
  • Overhead airbag
  • Power Door Locks
  • Power Sunroof
  • Pickup Box
  • Brake assist
  • Electronic Stability Control
  • Lane Departure Warning System
  • Hill Descent Control
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Panic alarm
  • Security system
  • Unauthorized Entry Theft-Deterrent System
  • Speed control
  • 2-Speed Active Transfer Case
  • 220 Amps Alternator
  • Engine Block Heater
  • Exhaust Brake
  • Heavy-Duty 80 Amp Battery
  • AT4 High Clearance Step (LPO)
  • Auto-dimming door mirrors
  • Bumpers: body-color
  • Heated door mirrors
  • IntelliBeam Automatic High Beam On/Off
  • LED Cargo Area Lighting
  • LED Smoked Amber Roof Marker Lamps
  • Painted Black Surround Grille
  • Power door mirrors
  • Power-Retractable Black Assist Steps
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Spray-On Pickup Box Bed Liner w/AT4 Logo
  • Turn signal indicator mirrors
  • Winter Grille Cover
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • 2nd Row Dual USB Charge-Only Ports
  • 4.2 Diagonal Color Display Driver Info Center
  • 4G LTE Wi-Fi Hotspot Capable
  • 8 Multicolor Driver Information Center
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Automatic Emergency Braking
  • Bed View Camera w/2 Trailer Camera Provisions
  • Compass
  • Compass Located In Instrument Cluster
  • Driver door bin
  • Driver vanity mirror
  • Floor-Mounted Center Console
  • Following Distance Indicator
  • Forward Collision Alert
  • Front Prem Floor Liners w/Removable Carpet Insert
  • Front reading lights
  • GMC Connected Access Capable
  • HD Rear Vision Camera
  • HD Surround Vision
  • Heated steering wheel
  • Illuminated entry
  • Inside Rearview Auto-Dimming Rear Camera Mirror
  • Lane Change Alert w/Side Blind Zone Alert
  • Multicolor 15 Diagonal Head-Up Display
  • OnStar & GMC Connected Services Capable
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Cross Traffic Alert
  • Rear Prem Floor Liners w/Removable Carpet Insert
  • Rear reading lights
  • Rear seat center armrest
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Ultrasonic Front & Rear Park Assist
  • Voltmeter
  • Wireless Charging
  • Wireless Phone Projection
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • Front Bucket Seats
  • Front Center Armrest
  • Heated & Ventilated Front Bucket Seats
  • Heated 2nd Row Outboard Seats
  • Heated Driver & Front Outboard Passenger Seats
  • Heated front seats
  • Heated rear seats
  • Perforated Leather-Appointed Front Seat Trim
  • Power passenger seat
  • Safety Alert Seat
  • Split folding rear seat
  • Ventilated front seats
  • Passenger door bin
  • Hitch Guidance w/Hitch View
  • In-Vehicle Trailering System App
  • Integrated Trailer Brake Controller
  • 18 Machined Aluminum Wheels
  • 20 Machined Aluminum Wheels
  • Alloy wheels
  • Deep-Tinted Glass
  • Power Front Passenger Windows w/Express Up/Down
  • Power Rear Windows w/Express Down
  • Power Sliding Rear Window w/Defogger
  • Variably intermittent wipers
  • **LOCAL TRADE**
  • **FRESH OIL CHANGE**
  • **FRESHLY DETAILED**
  • **PASSED DEALER INSPECTION**
  • **NEW TIRES**
Recently Viewed Vehicles
Harbor Chevrolet makes no representations, expressed or implied, to any actual or prospective purchaser or owner of this vehicle as to the existence, ownership, accuracy, description or condition of the listed vehicle's equipment, accessories, price or any warranties. Any and all differences must be addressed prior to the sale of this vehicle. Vehicle pricing and availability subject to change without notice. All Pricing expires at midnight 02/05/2026. The price for listed vehicles as equipped does not include charges such as: Government fees and/or state or local taxes, license fee, registration fee, dealer documentary fee, finance charges, emissions testing fees, compliance fees, credit investigation, credit insurance, physical damage of liability insurance or delivery fees. WalkTheLot.com is not responsible for typographical or other possible errors. Please confirm all displayed data with the dealership.
LOCATION
Harbor Chevrolet
3770 Cherry Ave
Long Beach, CA. 90807
Google Map

(562) 485-9036

Contact: Matt Hibben

Email Us
https://www.walkthelot.com/inventory/detail/?aid=2119&did=2773&vin=1GT49PEY8MF157213
Printed 02/04/2026 12:47 PM Eastern
Print Send to a Friend
Share This Vehicle
EMAIL HARBOR CHEVROLET
Financing Calculator