Ultimate Rides

120 South Hickory St, Braidwood, IL 60408
4.9
4.9 out of 5 stars

Used 2021 GMC Sierra 3500HD Denali

76,078 miles
For Sale:$55,990
Estimated payment:$1,270/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $50,000 and $58,800, while the current price is $55,990.$50,000 - $58,800$55,990
  • Priced at $55,990, this vehicle is within the current market price range of $50,000 to $58,800.

  • It has 76,078 miles, which is 19,322 (20%) below the median mileage of 95,400.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report
  • Truck
  • Pickup
  • Crew Cab
  • Luxury
  • Very Comfortable
  • Heavy Hauler
  • Extended Front Legroom
  • Vaulted Headroom
  • Condition
    Used
  • Mileage
    76,078miles
  • Aggregate Ratings
    4
    4 out of 5 stars
  • Generation
    4(2020 - 2026)
  • Trim
    Denali
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Cayenne Red Tintcoat (Red & Orange)Factory Paint Code:GSK
  • Interior Color
    Jet Black (Black)Factory Paint Code:H2X
  • Upholstery
    Leather
  • Size Segment
    Heavy Duty
  • Doors
    4
  • Max Seating
    5
  • Max Towing Capacity
    21,300lbs.
  • Weight Class
    10,000-14,000 lbs. (3)
  • Bed Length
    82.2in.
  • Ground Clearance
    11.2inch
  • Final Assembly Point
    Flint, Michigan
  • VIN
    1GT49WEY9MF223343
  • Starting MSRP
    $66,700

Engine6.6L V8 Bio Diesel 445hp

  • Fuel Type:Bio Diesel
  • Max Horsepower:445 hp @ 2800 rpm
  • Power to Weight Ratio:15.61lbs/hp
  • Max Torque:910 ft.lbf @ 1600 rpm
  • Brand:Duramax
  • Displacement:6.6liters
  • Block Type:V
  • Cylinders:8
  • Aspiration:Turbo
  • Fuel Induction:Common Rail Direct Injection
  • Oil Capacity:9.5liters
  • Cam Type:OHV
  • Stroke:3.9
  • Bore:4.06
  • Valves:32

Message from the seller

Fresh Inventory! Brand New 35 Inch Tires! 2021 GMC Sierra Denali 3500 HD! Duramax Diesel. LED Headlights. LED Daytime Running Lights. LED Fog Lights. Front Parking Sensors. Front Tow Hooks. Front Camera System. Vented Hood. Tow Mirrors. LED Mirror Lights. 360 Camera View. Power Running Boards. Sunroof. Clearance Lights. Passive Key Entry/ Exit. Blindspot Monitoring System. LED Puddle Lamps. Power Sliding Rear Window. Tonneau Cover. LED Tail Lights. Rear Parking Sensors. Tow Package. Reverse Camera. Locking Tailgate. Multipro Tailgate. Bed Liner. LED Bed Lights. Rear Heated Seats. Leather Interior. 5 Passenger Seating. Power Seats. Memory Seats. Full Center Console. Bose Premium Audio. Weather Tech Front Floor Mats. Power Mirrors. Power Extended Mirrors. Power Folding Mirrors. Power Windows. Power Locks. Automatic Light Control. Electronic Parking Brake. Heads Up Display. Tilt Wheel. Leather Wrapped Steering Wheel. Cruise Control. Voice Recognition. Steering Wheel Controls. Heated Steering Wheel. Collision Avoidance System. Push To Start. Dual Climate Control. 6 Inch Touchscreen Display. Heated Seats. Cooled Seats. Wireless Phone Charger. Lane Keep Assist. Traction Control. Keyless Entry. Remote Start.

* Based on opinions and should be considered as general guidance only.

  • Reliability (4)
    4 out of 5 stars
    GMC heavy-duty trucks generally have a strong reputation for reliability, and the 2021 Sierra 3500HD Denali upholds this. Owners report minimal issues, especially with proper maintenance.
  • Maintenance (3)
    3 out of 5 stars
    As with any heavy-duty truck, maintenance costs can be higher than a standard vehicle due to larger components and specialized fluids. However, routine service intervals are reasonable, and parts availability is good.
  • Technology (4)
    4 out of 5 stars
    GMC packed the Denali with useful technology, including a large infotainment screen, advanced trailering systems, and a comprehensive suite of safety features. While mostly intuitive, some interfaces could be slightly more streamlined.
  • Comfort (5)
    5 out of 5 stars
    The Denali trim truly shines in comfort. The interior is luxurious with premium materials, heated and ventilated seats, and a quiet cabin that makes long drives enjoyable. The ride quality is surprisingly smooth for a truck of this size.
  • Dynamics (4)
    4 out of 5 stars
    For a heavy-duty truck, the Sierra 3500HD Denali handles remarkably well. The steering is responsive, and it feels stable even when towing substantial loads. It's not a sports car, but for its class, it's very capable.

  • Comfort & Seating:

    • Heated Seats
    • Heated Steering Wheel
    • Power Seats
    • Ventilated Seats
  • Convenience:

    • 115V Power Outlet
    • Automatic Climate Control
    • Garage Door Opener
    • Parking Sensors
    • Remote Start
  • Entertainment:

    • Bluetooth
    • Premium Audio
    • Satellite Radio
  • Exterior:

    • Heated Mirrors
    • Tinted Windows
  • Other:

    • Trailer Hitch
  • Safety:

    • Automatic Emergency Braking
    • Autonomous Braking
    • Backup Camera
    • Blind Spot Monitor
    • Collision Avoidance
    • Cross Traffic Alert
    • Lane Departure Warning
    • Lane Keeping Assistance
    • Surround View Camera
    • Tire Pressure Monitoring
  • Technology:

    • Android Auto
    • Navigation

  • Air Conditioning

    • Front air conditioning: automatic climate control
    • Front air conditioning zones: dual
    • Rear vents: second row
    • Air filtration
  • Airbags

    • Airbag deactivation: occupant sensing passenger
    • Side airbags: front
    • Front airbags: dual
    • Side curtain airbags: front
    • Side curtain airbags: rear
  • Audio System

    • Radio: voice operated
    • Auxiliary audio input: Bluetooth
    • Radio: touch screen display
    • Premium brand: Bose
    • Antenna type: diversity
    • Antenna type: mast
    • Subwoofer: 1
    • Total speakers: 6
    • Radio: AM/FM
    • Radio data system
    • Speed sensitive volume control
    • Auxiliary audio input: jack
    • Auxiliary audio input: USB
    • Auxiliary audio input: memory card slot
    • Radio: HD radio
    • Auxiliary audio input: iPod/iPhone
    • Satellite radio: SiriusXM
  • Brakes

    • Rear brake width: 1.34
    • Front brake width: 1.57
    • Rear brake type: ventilated disc
    • Rear brake diameter: 14.2
    • Front brake diameter: 14
    • Front brake type: ventilated disc
    • Braking assist
    • Electronic brakeforce distribution
    • ABS: 4-wheel
    • Power brakes
    • Electronic parking brake: auto off
  • Comfort Features

    • Floor mat material: carpet
    • Heated steering wheel
    • Center console trim: simulated wood
    • Steering wheel trim: leather
    • Door trim: simulated wood
    • Door trim: leather
    • Armrests: rear folding
    • Armrests: rear center with cupholders
    • Floor mats: rear
    • Floor mats: front
    • Floor material: carpet
  • Convenience Features

    • Wireless charging station: front
    • Power outlet(s): USB front
    • Power outlet(s): USB rear
    • Cupholders: front
    • Memorized settings: 2 driver
    • Steering wheel: tilt and telescopic
    • Power outlet(s): 115V cargo area
    • One-touch windows: 4
    • Reading lights: front
    • Power steering: variable/speed-proportional
    • Power outlet(s): 12V rear
    • Cruise control
    • Multi-function remote: panic alarm
    • Power windows: lockout button
    • Overhead console: front
    • Steering wheel mounted controls: audio
    • Memorized settings: driver seat
    • Memorized settings: side mirrors
    • Push-button start
    • Vanity mirrors: dual illuminating
    • Reading lights: rear
    • Power outlet(s): 12V front
    • Assist handle: rear
    • Remote engine start/cabin preconditioning
    • Center console: front console with armrest and storage
    • Rearview mirror: auto-dimming
    • Steering wheel mounted controls: cruise control
    • Steering wheel mounted controls: phone
    • Steering wheel mounted controls: multi-function
    • Easy entry: power driver seat
    • Universal remote transmitter: Homelink - garage door opener
    • Power outlet(s): 115V front
    • Storage: front seatback
    • Assist handle: front
    • Storage: under rear seats
    • Storage: door pockets
    • Multi-function remote: proximity entry system
    • Cupholders: rear
    • Steering wheel mounted controls: voice control
    • Capless fuel filler system
  • Drivetrain

    • 4WD type: part time w/ on demand setting
    • 4WD selector: electronic hi-lo
    • Axle ratio: 3.73
    • Locking differential: rear
  • Engine

    • Battery saver
    • Battery: heavy duty
    • Auxiliary oil cooler
    • Battery: maintenance-free
    • Alternator: 170 amps
    • Battery rating: 720 CCA
  • Exterior Features

    • Pickup bed light: LED
    • Tailgate: power locking
    • Tailgate: power open
    • Tailgate: multi-function split-folding
    • Bumper detail: rear integrated corner step
    • Front bumper color: body-color
    • Door handle color: chrome
    • Mirror color: chrome
    • Pickup bed liner: spray-on
    • Running boards
    • Grille color: chrome
    • Grille color: chrome surround
    • Tailgate: removable
    • Skid plate(s): front
    • Exhaust tip color: stainless steel
    • Tailgate: lift assist
    • Rear bumper color: body-color
    • Fender lip moldings: black
    • Running board color: chrome
    • Hood scoop
    • Window trim: stainless steel
    • Skid plate(s): rear
    • Tailgate: step
  • In Car Entertainment

    • Connected in-car apps: app marketplace integration
    • Infotainment: GMC Infotainment System
    • Infotainment screen size: 8 in.
    • Smartphone integration: wireless Apple CarPlay
    • Smartphone integration: wireless Android Auto
  • Instrumentation

    • Warnings and reminders: low battery
    • Customizable instrument cluster
    • Instrument cluster screen size: 8 in.
    • Warnings and reminders: lamp failure
    • Warnings and reminders: low oil pressure
    • Warnings and reminders: coolant temperature warning
    • Clock
    • Powertrain hour meter
    • Gauge: tachometer
    • Compass
    • Digital odometer
    • External temperature display
    • Multi-function display
    • Gauge: oil pressure
    • Fuel economy display: MPG
    • Fuel economy display: range
    • Warnings and reminders: low fuel level
    • Warnings and reminders: maintenance due
    • Trip odometer
  • Lights

    • Daytime running lights: LED
    • Front fog lights: LED
    • Taillights: LED
    • Headlights: auto high beam dimmer
    • Exterior entry lights: puddle lamps
    • Exterior entry lights: approach lamps
    • Headlights: LED
    • Headlights: wiper activated
    • Headlights: auto delay off
    • Headlights: auto on/off
    • Roof-mounted lights
  • Mirrors

    • Side mirrors: integrated turn signals
    • Side mirror adjustments: power
    • Side mirrors: heated
    • Side mirror adjustments: reverse gear tilt
    • Side mirrors: auto-dimming
    • Side mirror adjustments: power folding
    • Side mirror adjustments: power telescoping
    • Towing mirrors
  • Safety

    • Rearview monitor: in dash
    • Cross traffic alert: rear
    • Pre-collision warning system: vibrating driver seat
    • Pre-collision warning system: audible warning
    • Pre-collision warning system: visual warning
    • Camera system: surround view
    • Check rear seat reminder
    • Camera system: cargo area
    • Automatic emergency braking: front
    • Child safety door locks
    • Child seat anchors: LATCH system
    • Parking sensors: rear
    • Blind spot safety: sensor/alert
    • Lane deviation sensors
    • Parking sensors: front
    • Programmable safety key
  • Seatbelts

    • Seatbelt pretensioners: front
    • Seatbelt warning sensor: front
    • Rear seatbelts: 3-point
    • Front seatbelts: 3-point
    • Emergency locking retractors: front
  • Seats

    • Driver seat power adjustments: height
    • Passenger seat power adjustments: height
    • Driver seat: ventilated
    • Passenger seat: heated
    • Driver seat: heated
    • Driver seat power adjustments: 10
    • Rear headrests: 3
    • Front headrests: 2
    • Passenger seat power adjustments: 10
    • Front seat type: bucket
    • Rear seat type: 60-40 split bench
    • Rear headrests: adjustable
    • Upholstery: leather-trimmed
    • Passenger seat: ventilated
    • Front headrests: adjustable
    • Driver seat power adjustments: lumbar
    • Passenger seat power adjustments: lumbar
    • Rear seat folding: folds up
    • Rear seat: heated
    • Upholstery accents: perforated
    • Driver seat power adjustments: reclining
    • Passenger seat power adjustments: reclining
  • Security

    • Anti-theft system: alarm
    • Power door locks: anti-lockout
    • Anti-theft system: vehicle immobilizer
    • Power door locks: auto-locking
  • Stability and Traction

    • Off-road driving assist: hill descent
    • Stability control
    • Traction control
    • Hill holder control
    • Roll stability control
    • Trailer stability control
  • Suspension

    • Front suspension classification: independent
    • Rear suspension classification: solid live axle
    • Rear spring type: leaf
    • Front spring type: torsion bars
    • Tuned suspension: off-road
    • Rear suspension type: multi-leaf
    • Rear shock type: twin-tube gas
    • Front stabilizer bar: diameter 35 mm
    • Front suspension type: upper and lower control arms
    • Front shock type: twin-tube gas
  • Telematics

    • Navigation system: memory card
    • Electronic messaging assistance: with read function
    • Electronic messaging assistance: voice operated
    • Satellite communications: voice guided directions
    • Wi-Fi: hotspot
    • Driver assistance app: roadside assistance
    • Smart device app function: maintenance status
    • Smart device app compatibility: myGMC with Connected Access
    • Satellite communications: OnStar
    • Wireless data link: Bluetooth
    • Hands-free phone call integration: voice operated
    • Navigation system: touch screen display
    • Navigation system: voice operated
  • Tires and Rims

    • Tire type: all terrain
    • Spare tire mount location: underbody
    • Spare wheel type: steel
    • Tire Pressure Monitoring System
    • Spare tire size: full-size
    • Wheels: polished aluminum alloy
  • Towing and Hauling

    • Tow hooks: front
    • Tow/Haul mode
    • Pickup bed cargo management: tie-down anchors
    • Trailer hitch
    • Auxiliary transmission fluid cooler
    • Trailer wiring: 4-pin
    • Trailer wiring: 7-pin
    • Trailer brake controller
  • Windows

    • Pickup sliding rear window: power horizontal
    • Window defogger: rear
    • Front wipers: variable intermittent
    • Tinted glass
    • Power windows: safety reverse

  • Seating:

    • Seating Rows:2
    • Standard Seating:5
    • Max Seating:5
    • Head Room (front):43in.
    • Leg Room (front):44.5in.
    • Shoulder Room (front):66in.
    • Hip Room (front):61.2in.
    • Head Room (rear):40.1in.
    • Leg Room (rear):43.4in.
    • Shoulder Room (rear):65.3in.
    • Hip Room (rear):60.2in.
  • Measurements:

    • Length:250.1in.
    • Width:81.9in.
    • Height:80.9in.
    • Bed Length:82.2in.
    • Ground Clearance:11.2in.
    • Wheelbase:158.9in.
    • Front Track:68.1in.
    • Rear Track:68.3in.
  • Weight:

    • Curb Weight:6,947lbs
    • Gross Weight:11,350lbs
    • Gross Combined Weight:24,000lbs
  • Wheels & Tires:

    • Wheel Diameter:20.0 x 8.5in.
    • Wheel Diameter (rear):20.0 x 8.5in.
    • Tire:LT275/65R20
    • Tire (rear):LT275/65R20
  • Performance:

    • Power to Weight Ratio:15.61lbs/hp
    • Turning Circle:52.7ft.
    • Max Payload:4,365lbs
    • Towing Capacity:14,500lbs
    • Max Towing Capacity:21,300lbs
  • Fuel Tank:

    • Fuel Tank Volume:36gallon

Possible remaining factory warranty

  • Corrosion Perforation
    6 years/100,000 miles
  • Diesel Engine Powertrain
    5 years/100,000 miles
  • Roadside Assistance
    5 years/60,000 miles
  • Courtesy Transportation
    5 years/60,000 miles
  • Transferable Powertrain
    5 years/60,000 miles
  • Bumper to Bumper
    3 years/36,000 miles
  • Corrosion
    3 years/36,000 miles
  • First Scheduled Maintenance
    1 years/unlimited miles

2021 GMC Sierra 3500HD

The 2021 GMC Sierra 3500HD stands as a formidable contender in the heavy-duty pickup truck segment, engineered for those who demand uncompromising capability and robust performance. Whether it's towing substantial trailers, hauling heavy payloads, or tackling demanding work sites, the Sierra 3500HD is built to excel. This overview delves into its key features, ownership experience, potential considerations, and overall value.

Highlights

  • Powertrain Prowess: The Sierra 3500HD offers two potent engine options to suit your hauling and towing needs.
    • 6.6L V8 Gas Engine: This gasoline powerhouse delivers ample muscle for everyday tasks and lighter heavy-duty applications.
    • Duramax 6.6L Turbo-Diesel V8 Engine: The star of the show, this diesel engine is renowned for its incredible torque, enabling the Sierra 3500HD to achieve its maximum towing and payload capacities. It's the go-to for the most demanding jobs.
  • Advanced Safety Features: GMC equips the Sierra 3500HD with a suite of advanced driver-assistance systems designed to enhance safety and confidence.
    • Forward Collision Alert: Warns of an imminent frontal collision, providing audible and visual alerts.
    • Automatic Emergency Braking: Can automatically apply brakes to help reduce the severity of a frontal collision or avoid it altogether.
    • Lane Departure Warning: Alerts the driver if the vehicle begins to drift out of its lane without the turn signal activated.
    • Blind Spot Monitoring with Trailer Blind Spot Monitoring: Detects vehicles in your blind spots and can also extend monitoring to your trailer, providing crucial alerts when changing lanes.
    • Rear Cross Traffic Alert: Warns of approaching traffic when you're backing out of a parking space or driveway.
    • Hitch Guidance with Hitch View: Provides a dynamic centerline guide on the screen to help you align your trailer for hitching, with a special camera view of the hitch area.
  • Trim Level Summary: The Sierra 3500HD is available in a range of trims, each offering a distinct blend of features and refinement.
    • Pro: The no-nonsense, work-oriented trim, focusing on essential functionality and durability.
    • SLE: Steps up with more creature comforts and technology, making it suitable for both work and everyday use.
    • SLT: Offers a more premium experience with enhanced interior appointments and advanced features.
    • AT4: The off-road oriented trim, featuring unique styling, lifted suspension, and off-road enhancements for tackling challenging terrain.
    • Denali: The pinnacle of luxury and technology, providing an upscale interior, premium materials, and the most advanced features available.
  • Innovative Towing Technology: Beyond the safety features, the Sierra 3500HD boasts several technologies specifically designed to simplify and improve the towing experience. This includes multiple camera views (including a transparent trailer view on select trims) and integrated trailer brake controllers.

What to Expect

Owning a 2021 GMC Sierra 3500HD is an experience characterized by capability and a certain rugged elegance. For daily driving, expect a commanding presence on the road and a comfortable, albeit truck-like, ride. The powerful engines, especially the Duramax diesel, provide effortless acceleration even when heavily loaded. Maintenance will likely involve regular oil changes, tire rotations, and fluid checks, with diesel-specific maintenance like fuel filter replacements being more frequent. Insurance costs can be higher than for lighter vehicles due to the truck's size, power, and repair costs. Resale value for well-maintained heavy-duty trucks like the Sierra 3500HD is generally strong, reflecting their enduring utility.

Potential Considerations

While the Sierra 3500HD is a highly capable machine, buyers should be aware of a few potential considerations. Its sheer size can make maneuverability in tight urban environments or parking garages challenging. Fuel economy, particularly with the gasoline engine or when towing, will be significantly lower than for smaller vehicles. The ride, while improved, can still be a bit firm when the truck is unloaded, as it's designed to handle heavy payloads. Some advanced features, while beneficial, can add complexity to the vehicle.

Overall Summary

The 2021 GMC Sierra 3500HD is a supremely capable and highly versatile heavy-duty pickup truck. It excels in its primary mission of towing and hauling, offering potent engine choices and an impressive array of technology to aid in these tasks. With its well-appointed interior options, especially on higher trims, it also offers a comfortable and refined experience for its segment. While its size and fuel consumption require consideration, for those who need to tackle the toughest jobs, the Sierra 3500HD is a compelling and reliable choice.

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Listed on April 23, 2026 (10 hours ago)
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Cruz™ Disclaimer: Vehicle details shown on this site are provided by sellers or third parties. Cruz™ does not independently verify this information and is not liable for its accuracy. All services and content are offered without any warranty, either expressed or implied. Learn more here.MPG & Max Range: Fuel economy estimates are provided by the EPA and are intended for comparison purposes only. Your actual mileage will vary depending on driving conditions, vehicle condition, and other factors.Price: Prices shown may not include taxes, fees, or other charges. Prices and availability are subject to change without notice. Contact the seller for the most current pricing information.Options & Features: Installed options may not be shown. Contact the seller for more information about available features and options.