Used 2021 GMCSierra 3500 HD AT4
- Diesel
- Exterior Color
- Pacific Blue
- Interior Color
- Jet Black
- Odometer
- 64,884 miles
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT49VEYXMF243627
- Stock Number
- N243627A
GMC
Sierra 3500 HD
Included Packages & Accessories
- Upfitter Switch Kit
- Power-Retractable Black Assist Steps
- Pickup Bed
- Federal Emissions Requirements
- Dual 220-Amps Primary/170-Amps Aux Alternators
- Trailer Tire Pressure Monitor Sensors
- Wired Auxiliary Trailer Camera
- High Idle Switch
- Front License Plate Kit
- Black Front & Rear Molded Splash Guards
- Preferred Equipment Group 4SB
- Radio: AM/FM w/Premium GMC Infotainment System
- 6-Speaker Audio System Feature
- SiriusXM w/360L
- HD Radio
- 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
- Prem Front Floor Liners w/Removable Carpet Insert
- Prem Rear 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
- 2 USB Ports Inside Console
- 2nd Row Dual USB Charge-Only Ports
- HD Rear Vision Camera
- Heated Driver & Front Outboard Passenger Seats
- Ventilated Driver & Front Passenger Seats
- Spray-On Pickup Bed Liner w/AT4 Logo
- 2nd Row Heated 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 Blk Surround Grille w/High Gloss Blk Mesh
- Power Front 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
- Wheels: 18" Machined Aluminum
- Rear Wheelhouse Liners
- X31 Off-Road Package
- Hill Descent Control
- Skid Plates
- Off-Road Suspension
- Integrated Trailer Brake Controller
- ProGrade Trailering System
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
- 2-Speed Active Transfer Case
- 10-Way Power Driver Seat Adjuster w/Lumbar
- Driver Memory
- Power Sliding Rear Window w/Defogger
- Front Bucket Seats
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Winter Grille Cover
- Power Sunroof
- Gooseneck/5th Wheel Package
- Gooseneck/5th Wheel Prep Package
- Bed View Camera w/2 Trailer Camera Provisions
- Technology Package
- Auto-Dimming Inside Rearview Mirror w/Camera
- Multicolor 15" Diagonal Head-Up Display
- 8" Driver Information Center
- GVWR: 12,100 lbs
- 3.42 Rear Axle Ratio
- Safety Alert Seat
- Radio: AM/FM w/Prem GMC Infotainment System & Navi
- Engine Block Heater
- Exhaust Brake
- Wireless Charging
- Engine: Duramax 6.6L Turbo-Diesel V8
- 220 Amp Alternator
- Transmission: Allison 10-Speed Automatic
- Dual Heavy-Duty 70 Amp Battery
- Capped Fuel Fill
- AT4 Premium Plus Package
- AT4 Preferred Package
- HD Surround Vision w/2 Trailer View Camera Provisions
- Universal Home Remote
- Bose Premium 7 Speaker Sound System
- LED Smoked Amber Roof Marker Lamps
- Driver Alert Package I
- Ultrasonic Front & Rear Park Assist
- Lane Change Alert w/Side Blind Zone Alert
- Rear Cross Traffic Alert
- Perimeter Lighting
- Driver Alert Package II
- Forward Collision Alert
- Lane Departure Warning
- Automatic Emergency Braking
- IntelliBeam Automatic High Beam On/Off
- Following Distance Indicator
- Wheels: 20" Machined Aluminum
- AT4 High Clearance Step
- Wheels: 20" Transit Aluminum
- Tires: LT275/65R20 AT BW
- Spare LT275/70R18 AT BW Tire
- Wheels: 20" High Gloss Black Aluminum
- Wheel Locks
Included Packages & Options
- Engine: Duramax 6.6L Turbo-Diesel V8$9,890
- 220 Amp Alternator
- Transmission: Allison 10-Speed Automatic
- GVWR: 12,100 lbs
- 3.42 Rear Axle Ratio
- Dual Heavy-Duty 70 Amp Battery
- Winter Grille Cover
- Exhaust Brake
- Engine Block Heater
- Capped Fuel Fill
- Wheels: 20" High Gloss Black Aluminum$2,995
- Wheels: 20" Transit Aluminum
- Wheel Locks
- Technology Package$1,275
- Auto-Dimming Inside Rearview Mirror w/Camera
- Multicolor 15" Diagonal Head-Up Display
- 8" Driver Information Center
- Driver Alert Package I$890
- Ultrasonic Front & Rear Park Assist
- Lane Change Alert w/Side Blind Zone Alert
- Rear Cross Traffic Alert
- Perimeter Lighting
- Driver Alert Package II$645
- Forward Collision Alert
- Lane Departure Warning
- Automatic Emergency Braking
- IntelliBeam Automatic High Beam On/Off
- Following Distance Indicator
- Safety Alert Seat
- Tires: LT275/65R20 AT BW$200
- Spare LT275/70R18 AT BW Tire
Included Options
- Upfitter Switch Kit$150
- Power-Retractable Black Assist Steps$1,895
- Dual 220-Amps Primary/170-Amps Aux Alternators$380
- Trailer Tire Pressure Monitor Sensors$50
- Wired Auxiliary Trailer Camera$595
- High Idle Switch$200
- Black Front & Rear Molded Splash Guards$190
Detailed Specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 36 gal
- Horsepower: 445
Standard Features
- 220 Amp Alternator
- Transmission: Allison 10-Speed Automatic
- GVWR: 12,100 lbs
- 3.42 Rear Axle Ratio
- Dual Heavy-Duty 70 Amp Battery
- Winter Grille Cover
- Exhaust Brake
- Engine Block Heater
- Capped Fuel Fill
- Wheels: 20" Transit Aluminum
- Wheel Locks
- Auto-Dimming Inside Rearview Mirror w/Camera
- Multicolor 15" Diagonal Head-Up Display
- 8" Driver Information Center
- Ultrasonic Front & Rear Park Assist
- Lane Change Alert w/Side Blind Zone Alert
- Rear Cross Traffic Alert
- Perimeter Lighting
- Forward Collision Alert
- Lane Departure Warning
- Automatic Emergency Braking
- IntelliBeam Automatic High Beam On/Off
- Following Distance Indicator
- Safety Alert Seat
- Spare LT275/70R18 AT BW Tire
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Driver Memory
- Heated Driver & Front Outboard Passenger Seats
- Ventilated Driver & Front Passenger Seats
- 2nd Row Heated Outboard Seats
- Floor-Mounted Center Console
- Hill Descent Control
- Skid Plates
- Off-Road Suspension
- Hitch Guidance w/Hitch View
- 6-Speaker Audio System Feature
- SiriusXM w/360L
- HD Radio
- Radio: AM/FM w/Premium GMC Infotainment System
- 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
- Prem Front Floor Liners w/Removable Carpet Insert
- Prem Rear 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
- 2 USB Ports Inside Console
- 2nd Row Dual USB Charge-Only Ports
- HD Rear Vision Camera
- Heated Driver & Front Outboard Passenger Seats
- Ventilated Driver & Front Passenger Seats
- Spray-On Pickup Bed Liner w/AT4 Logo
- 2nd Row Heated 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 Blk Surround Grille w/High Gloss Blk Mesh
- Power Front 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
- Wheels: 18" Machined Aluminum
- Rear Wheelhouse Liners
- X31 Off-Road Package
- Integrated Trailer Brake Controller
- ProGrade Trailering System
- 2-Speed Active Transfer Case
- Gooseneck/5th Wheel Prep Package
- Bed View Camera w/2 Trailer Camera Provisions
- AT4 Preferred Package
- Driver Alert Package I
- Driver Alert Package II
- Wheels: 20" Machined Aluminum
- Power Sunroof
- Technology Package
- AT4 High Clearance Step
- Bed View Camera w/2 Trailer Camera Provisions
- HD Surround Vision w/2 Trailer View Camera Provisions
- Universal Home Remote
- Power Sliding Rear Window w/Defogger
- Radio: AM/FM w/Prem GMC Infotainment System & Navi
- Bose Premium 7 Speaker Sound System
- LED Smoked Amber Roof Marker Lamps
- Wireless Charging
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
Dealer Notes
This 2021 GMC Sierra 3500HD AT4, has a Pacific Blue Metallic exterior and Jet Black w/Kalahari Accents interior color with only 64,884 miles. Stock Number N243627A. You can connect with us by calling (719) 249-2703. No Accidents! OTHER NOTABLE FEATURES AND OPTIONS YOU SHOULD KNOW ABOUT: Driver Alert Package IPerimeter LightingUltrasonic Front and Rear Park AssistRear Cross Traffic AlertLane Change Alert with Side Blind Zone AlertDriver Alert Package IISafety Alert SeatIntelliBeam Automatic High Beam On/offFollowing Distance IndicatorForward Collision AlertLane Departure WarningAutomatic Emergency BrakingAT4 Premium Plus PackagePower SunroofTechnology PackageAuto-Dimming Inside Rearview Mirror with Camera8" Driver Information CenterMulticolor 15" Diagonal Head-Up DisplayPreferred Equipment Group 4SBGMC Connected Access CapablePower Front Passenger Windows with Express Up/downPower Rear Windows with Express DownDeep-Tinted GlassKeyless Open and StartPower Door LocksPower Front Windows with Driver Express Up/downRear Wheelhouse LinersPremium Rear Floor Liners with Removable Carpet InsertPremium Front Floor Liners with Removable Carpet InsertRemote Vehicle Starter SystemElectric Rear-Window DefoggerSpray-On Pickup Bed Liner with AT4 LogoCompass Located in Instrument ClusterFloor-Mounted Center ConsolePainted Black Surround Grille with High Gloss Black MeshIntegrated Trailer Brake ControllerHeated Driver and Front Outboard Passenger Seats2nd Row Heated Outboard Seats120-Volt Bed Mounted Power Outlet120-Volt Instrument Panel Power Outlet12-Volt Rear Auxiliary Power OutletVentilated Driver and Front Passenger Seats2 USB Ports Inside Console2 USB Ports (first Row)Electrical Lock Control Steering ColumnManual Tilt-Wheel/telescoping Steering Column2-Speed Active Transfer CaseProGrade Trailering System4.2" Diagonal Color Display Driver Info CenterOnStar and GMC Connected Services CapableLED Cargo Area LightingRed Recovery HooksSteering Wheel Audio Controls2nd Row Dual USB Charge-Only PortsUnauthorized Entry Theft-Deterrent SystemHD Rear Vision Camera4G LTE Wi-Fi Hotspot CapableWireless Phone ProjectionX31 Off-Road PackageGooseneck/5th Wheel PackageGooseneck/5th Wheel Prep PackageAT4 Preferred Package Safety and Security Forward collision mitigation - Forward thinking. You look away for just a second and suddenly the vehicle in front of you has stopped. That's when the forward collision mitigation system comes to life. When it senses an impending impact, it will activate a combination of features to help prevent or reduce the severity of an accident. Forward collision mitigation is always looking ahead. Rear camera - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. The rear camera is an extra set of eyes that's both convenient and safe.Technology and Telematics Smart device mirroring - Smartphone, meet smart car. You can control your device through your vehicle's infotainment system. Smart device mirroring brings together safety and convenience by making it easier to find what you're looking for while keeping your eyes on the road. Apple CarPlay/Android Auto smart device wireless mirroring Mobile hotspot - WiFi on the fly. Connect your devices to the Internet through your vehicles private mobile hotspot and take the internet wherever your journey takes you, without eating up your data allowance. Find the hotspot with mobile hotspot. EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, GVWR, 12,100 LBS. (5488 KG) WITH SINGLE REAR WHEELS, REAR AXLE, 3.42 RATIO, WHEELS, 20" TRANSIT ALUMINUM WHEELS FOR LPO 20" WHEELS AND TIRES, TIRES, LT275/65R20 ALL-TERRAIN, BLACKWALL, SEATS, FRONT BUCKET WITH CENTER CONSOLE, JET BLACK WITH KALAHARI ACCENTS, PERFORATED FRONT LEATHER SEATING SURFACES, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8" DIAGONAL COLOR
KBB.com Consumer Reviews

Overall4.2Out of 5
- 5.0
2020 GMC Denali 3500 HD Duramax is a BEAST!
By Merlinsmerc | on Friday, January 22, 2021
Pulling a conventional 10,000 lb trailer over mountain passes is a whole new experience. Staying at the speed limit up long steep grades did not change the engine temperature. I feathered the accelerator up the mountain. The new 10 speed transmission is so smooth you cant feel it changing gears. This is my second GMC Denali Duramax, first being a 2016. I debated trading in for over a year, and am so happy I made the trade. Trailers always exceed by far the tongue weight posted on them, and in my case it came in at 1450 lbs. That exceeded my trucks posted maximum. The 2020 dually posts a 2,000 lb tongue weight, so now I can front load the trailer, and that reduces sway. If you can afford it, and have a heavy trailer, buy the truck!… - 5.0
Love our truck
By Ron | on Friday, December 11, 2020
The truck doesn’t have a sun roof which it was suppose to have… - 2.0
In shop for 13 weeks so far!
By Whip | on Monday, September 09, 2024
My truck has been in the shop for 13 weeks to this point with no end in sight. The Infotainment panel blew out which controls pretty much everything. Nice truck except if something goes wrong then, good luck! I would recommend looking at Fords and Rams and ask the question, how many vehicles do you have in your shop waiting for parts and for how long. I heard of one at my GMC dealership that has been waiting for 8 months! Only thing I get from GM is "we understand your frustration". Apparently they don't, or I would have my truck back long ago.…
Based on 6 consumer ratings for 2020–2026 models. | Privacy
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- Maroone Price
- $55,998
- We're here to help: (719) 249-2703
- We're here to help: (719) 249-2703




