Used 2021 GMCSierra 2500 HD AT4

  • Diesel
Located at
Baytown GMC Buick
    Exterior Color
    Onyx Black
    Interior Color
    Jet Black
    Odometer
    60,966 miles
    Body/Seating
    Truck Crew Cab/5 seats
    Transmission
    Automatic
    Drivetrain
    4x4
    Engine
    V-8 cyl
    VIN
    1GT19PEY9MF298343
    Stock Number
    298343A
    GMC Sierra 2500 HD

    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

    • Front License Plate Kit
    • Transmission: Allison 10-Speed Automatic
    • GVWR: 10,000 lbs
    • Winter Grille Cover
    • Radio: AM/FM w/Premium GMC Infotainment System
    • 6-Speaker Audio System Feature
    • SiriusXM w/360L
    • HD Radio
    • Engine Block Heater
    • Front Bucket Seats
    • 10-Way Power Driver Seat Adjuster w/Lumbar
    • 10-Way Power Passenger Seat Adjuster w/Lumbar
    • Driver Memory
    • Preferred Equipment Group 4SB
    • 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
    • 4G LTE Wi-Fi Hotspot Capable
    • GMC Connected Access 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
    • Off-Road Suspension
    • Hill Descent Control
    • Skid Plates
    • Integrated Trailer Brake Controller
    • ProGrade Trailering System
    • Hitch Guidance w/Hitch View
    • In-Vehicle Trailering System App
    • Engine: 6.6L V8 w/Direct Injection & VVT
    • Heavy-Duty 80 Amp Battery
    • GVWR: 10,650 lbs
    • 2-Speed Active Transfer Case
    • 3.42 Axle Ratio
    • Engine: Duramax 6.6L Turbo-Diesel V8
    • Capped Fuel Fill
    • 220 Amps Alternator
    • Dual Heavy-Duty 70 Amp Battery
    • Exhaust Brake
    • GVWR: 11,350 lbs
    • Wheels: 18" Machined Aluminum
    • Pickup Box
    • Tires: LT275/70R18E AT BW
    • Spare LT275/70R18 AT BW Tire

    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
    • Block heater
    • Compressor: intercooled turbo
    • Cylinder configuration: V-8
    • Drive type: four-wheel
    • Engine liters: 6.6L
    • Engine location: front
    • Fuel tank capacity: 36.0gal.
    • Horsepower: 445hp @ 2,800RPM
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Number of valves: 32
    • Rear locking differential
    • Recommended fuel: Diesel
    • Standard fuel economy fuel type: gasoline
    • Torque: 910 lb.-ft. @ 1,600RPM
    • Transmission: 10 speed automatic
    • 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
    • Compression ratio: 16.00 to 1
    • Curb weight: 3,515kg (7,749lbs)
    • Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
    • Engine displacement: 6.6 L
    • Engine horsepower: 445hp @ 2,800RPM
    • Engine torque: 910 lb.-ft. @ 1,600RPM
    • 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")
    • GVWR: 4,536kg (10,000lbs)
    • Payload: 1,616kg (3,563lbs)
    • 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

    Dealer Notes

    10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120 Point Safety Inspection, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 18 Machined Aluminum Wheels, 18 WHEELS, 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 220 Amps Alternator, 2nd Row Dual USB Charge-Only Ports, 3.42 Axle Ratio, 4-Wheel Disc Brakes, 4.2 Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, BLUETOOTH / HANDSFREE, Brake assist, Bumpers: body-color, CLEAN CARFAX!, Compass, Compass Located In Instrument Cluster, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Floor-Mounted Center Console, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front Prem Floor Liners w/Removable Carpet Insert, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Connected Access Capable, HD Radio, HD Rear Vision Camera, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hill Descent Control, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, LOCAL TRADE IN!, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, NAVIGATION, NON SMOKER VEHICLE, Occupant sensing airbag, Off-Road Suspension, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Painted Black Surround Grille, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Pickup Box, Power Door Locks, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power passenger seat, Power Rear Windows w/Express Down, Power steering, Power windows, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 4SB, Premium audio system: Premium GMC Infotainment System, PROFESSIONALLY DETAILED FOR DELIVERY!, Radio: AM/FM w/Premium GMC Infotainment System, Rear Prem Floor Liners w/Removable Carpet Insert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Red Recovery Hooks, Remote keyless entry, Remote Vehicle Starter System, Security system, SiriusXM w/360L, Speed control, Speed-sensing steering, Split folding rear seat, Spray-On Pickup Box Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, SUPER LOW MILES!, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trip computer, Turn signal indicator mirrors, Unauthorized Entry Theft-Deterrent System, Variably intermittent wipers, Ventilated front seats, Voltmeter, Winter Grille Cover, Wireless Phone Projection, X31 Off-Road Package. Clean CARFAX. Certified.Big Star Buick GMC is very proud to offer this outstanding-looking 2021 GMC Sierra 2500HD. AT4 4WD Onyx BlackOdometer is 13572 miles below market average!Priced below KBB Fair Purchase Price!Why should you buy from Big Star GMC Buick? Our unmatched service and diverse New and Used Buick, GMC, Cars and Trucks inventory have set us apart as the preferred dealer in Baytown

    KBB.com Consumer Reviews

    Kelley Blue Book - KBB.com
    Overall3.8Out of 5
    • Transmission trash

      By Jason on Monday, April 07, 2025

      2.0
      Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk
    • Infotainment system unreliable!

      By Brian C on Friday, June 27, 2025

      3.0
      The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another.
    • Fantastic truck

      By Jjj on Sunday, November 07, 2021

      5.0
      This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!