Reduced by $4,000 since Jun 28, 2026

2021 GMC Sierra 1500 AT4



  • $7,773 SAVINGS
    $29,990 LORENZO'S PRICE

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Vehicle Information

VIN: 3GTP9EED7MG456866
Stock #: SJ228196B
Model Code: TK10543
  • Condition Used
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents, Perforated Leather Front Seat Trim
  • Mileage 102,702
  • Fuel Economy
    City/Highway 14/19 MPG
  • Engine Engine: 5.3L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
  • Transmission Automatic
  • Fuel Type Gasoline Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.
  • Bluetooth®
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Leather Seats
  • Cruise Control

Dealer Comments

ONE OWNER AT4 4WD LOADED! GREAT DEAL! CREW CAB, LEATHER SEATS, PREMIUM SOUND SYSTEM, INTEGRATED TRAILER BRAKE CONTROLLER, REARVIEW CAMERA, COLOR TOUCH-SCREEN INCLUDES MULTI-TOUCH DISPLAY AM/FM STEREO, SIRIUSXM, STEERING WHEEL MOUNTED CONTROLS, PREMIUM WHEELS, RUNNING BOARDS, KEYLESS ENTRY, KEYLESS START, TOW PACKAGE, DUAL CLIMATE CONTROL, POWER SEAT WITH ADJUSTABLE LUMBAR, HEATED/COOLED SEATS, REAR STEP BUMPER, BRAKE ASSIST, AND MANY MORE OPTIONS!


Sierra 1500 AT4, 4D Crew Cab, EcoTec3 5.3L V8, 10-Speed Automatic, 4WD, Onyx Black, Jet Black With Kalahari Accents Leather. CARFAX One-Owner. Clean CARFAX. Onyx Black 2021 GMC Sierra 1500 AT4 EcoTec3 5.3L V8 10-Speed Automatic

Preferred Equipment Group 4SB (12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 2 USB Ports, 2 USB Ports (1st Row), 4.2" Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Body-Color Surround Grille, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, Front Prem Floor Liners w/Removable Carpet Insert, GMC Connected Access Capable, HD Rear Vision Camera, Heated Driver & Front Outboard Passenger Seating, Heavy-Duty Air Filter, Hill Descent Control, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, ProGrade Trailering System, Rear Dual USB Charging-Only Ports, Rear Prem Floor Liners w/Removable Carpet Insert, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Theft Deterrent System (Unauthorized Entry), and Ventilated Driver & Front Passenger Seats), Trailering Package (Hitch Guidance), Sierra 1500 AT4, 4D Crew Cab, EcoTec3 5.3L V8, 10-Speed Automatic, 4WD, Onyx Black, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 18" x 8.5" Machined Aluminum Wheels, 3.23 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, All-Weather Floor Liners w/AT4 Logo (LPO), Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, AT4 High Clearance Step (LPO), Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Brake assist, Bumpers: body-color, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated front seats, Heated steering wheel, Illuminated entry, Low tire pressure warning, Memory seat, Not Equipped w/Automatic Stop/Start, Not Equipped w/HD Radio, Not Equipped w/Heated 2nd Row Outboard Seats, Occupant sensing airbag, Off-Road Suspension, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Premium audio system: GMC Infotainment System, Radio data system, Radio: Premium GMC Infotainment Sys w/Multi-Touch, Rear reading lights.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 14 MPG
    • Hwy: 19 MPG
    • Combined: 16 MPG
  • Fuel System
    • Fuel System: Direct Injection
  • Fuel Tank Capacity
    • Fuel Tank Capacity: 24 gal
  • Fuel Type
    • Fuel Type: Gasoline Fuel
  • Horse Power
    • Horse Power: 355
  • Rear Wheel
    • Rear Wheel: Single
  • Trailering Capacity
    • Trailering Capacity: 0
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To receive the price shown you must trade a vehicle 2015 or newer with a clean title. All prices are valid until the end of the month, depending on vehicle availability. Contact dealer for most current information. Prices do not include additional fees and costs of closing, including government fees and taxes, any finance charges, a dealer documentation fee of $995, Dealer Prep of $689, Electronic Filing Fee of $498.75 and any emissions testing fees. Special finance rates available on approved credit through GM Financial.

The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.