Hillcrest Motors

177 Rockingham Rd., Derry, NH 03038
3.8
3.8 out of 5 stars

Used 2020 GMC Sierra 3500HD Denali

113,400 miles
For Sale:$48,900

$1,000(2.1%)price increased

Estimated payment:$1,109/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

SequenceDatePrice ChangeCurrent Price
1.4/2/2026 (7 days ago)$47,900
2.4/2/2026 (6 days ago)+$1,000 (+2.1%)$48,900
  • Truck
  • Pickup
  • Crew Cab
  • Luxury
  • Very Comfortable
  • Heavy Hauler
  • Extended Front Legroom
  • Vaulted Headroom
  • Condition
    Used
  • Mileage
    113,400miles
  • Aggregate Ratings
    4
    4 out of 5 stars
  • Generation
    4(2020 - 2026)
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Summit White (White)Factory Paint Code:GAZ
  • 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
    1GT49WEY5LF155959
  • Starting MSRP
    $65,500

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

2020 GMC SIERRA 3500HD CREW CAB DENALI 4x4 6.6L DURAMAX DIESEL FULLY LOADED HEATED AND COOLED LEATHER SEATS SUNROOF 20 IN WHEELS ALL STOCK VERY CLEAN TRUCK INSIDE AND OUT 113K MILES $48,900

  • 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
    • 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
    • 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
    • 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
    • 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: 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
  • In Car Entertainment

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

    • Warnings and reminders: low battery
    • 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
    • Check rear seat reminder
    • Automatic emergency braking: front
    • Child safety door locks
    • Child seat anchors: LATCH system
    • Camera system: rearview
    • 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

2020 GMC Sierra 3500HD: A Comprehensive Overview

The 2020 GMC Sierra 3500HD stands as a formidable contender in the heavy-duty pickup truck segment, built to tackle the toughest jobs with unwavering capability and a touch of premium refinement. Designed for those who demand serious hauling and towing power, the Sierra 3500HD offers a robust platform with a focus on durability, advanced technology, and a comfortable driving experience, even when burdened with heavy loads.

Highlights

  • Powertrain Prowess: The 2020 Sierra 3500HD is powered by one of two potent engine options, both engineered for exceptional torque and towing capacity.
    • 6.6L V8 Gas Engine: This engine delivers a healthy output, providing ample power for everyday hauling and towing needs. It's a reliable choice for those who prioritize gasoline power.
    • Duramax 6.6L V8 Turbo-Diesel Engine: This legendary diesel powerhouse is the star of the show for extreme towing. It produces massive torque, allowing the Sierra 3500HD to pull significantly heavier trailers with ease, making it ideal for commercial use or demanding recreational pursuits like fifth-wheel towing.
  • Advanced Safety Features: GMC equips the Sierra 3500HD with a suite of available driver-assistance technologies designed to enhance awareness and mitigate potential collisions.
    • Forward Collision Alert: This system monitors the distance to the vehicle ahead and warns the driver of a potential frontal collision, helping to prevent or reduce the severity of impact.
    • Lane Departure Warning: By sensing unintended lane drift, this feature alerts the driver, promoting safer lane keeping, especially during long drives.
    • Automatic Emergency Braking: In certain scenarios, if a frontal collision is imminent and the driver doesn't react, this system can automatically apply the brakes to help avoid or reduce the impact.
    • StabiliTrak® Stability Control with Trailer Sway Control: This integrated system helps maintain vehicle stability in various driving conditions and automatically counteracts trailer sway, providing confidence when towing.
    • Available HD Surround Vision: This innovative system uses multiple cameras to provide a 360-degree view around the truck, making it easier to maneuver in tight spaces and hitch trailers.
  • Trim Level Strength: The 2020 Sierra 3500HD offers a range of trims, each catering to different needs and preferences, with a clear progression in features and luxury.
    • Pro: This is the no-nonsense workhorse, focusing on essential functionality and durability for the toughest jobs. It's designed for maximum utility.
    • SLE: Stepping up from the Pro, the SLE adds more comfort and convenience features, making it a more well-rounded option for professionals who also value a more pleasant driving experience.
    • SLT: The SLT introduces a more premium feel with enhanced interior appointments and a greater array of technology and comfort features, bridging the gap between utility and luxury.
    • AT4: The AT4 is specifically designed for off-road enthusiasts, featuring a dedicated off-road suspension, skid plates, and other rugged enhancements to conquer challenging terrain.
    • Denali: Representing the pinnacle of Sierra HD luxury, the Denali offers an exceptionally refined interior, premium materials, and the most advanced technology and comfort features available in the lineup.
  • Innovative Towing Technology: GMC's focus on towing is evident in features like the ProGrade™ Trailering System, which includes a variety of camera views, trailer length indicator, and an integrated trailer brake controller, all designed to simplify and enhance the towing experience.

What to Expect

Owning a 2020 GMC Sierra 3500HD is generally characterized by robust performance and a truck-centric driving experience. Daily driving, especially in urban environments, will feel substantial due to its size and heavy-duty construction. However, when unladen, the ride can be firm, which is typical for vehicles designed for heavy hauling.

Maintenance: Routine maintenance for a heavy-duty truck like the Sierra 3500HD will involve oil changes, filter replacements, and tire rotations. However, due to the powerful engines and complex systems, it's recommended to adhere strictly to the manufacturer's recommended maintenance schedule. The Duramax diesel, in particular, requires specific diesel oil and filter changes, which may be more costly than gasoline counterparts. Accessing certain components for DIY maintenance can also be more challenging due to the truck's sheer size.

Insurance: Insurance costs for a 2020 GMC Sierra 3500HD are likely to be higher than for a standard passenger vehicle. This is due to its higher purchase price, larger engine size, and its primary use for heavy towing, which can be perceived as a higher risk. Factors like your driving record, location, and chosen coverage levels will significantly impact the final premium.

Potential Considerations

  • Size and Maneuverability: The sheer size of the Sierra 3500HD can be a significant factor for some buyers. Navigating tight parking lots, city streets, and even some rural roads can be challenging, requiring extra caution and awareness of its dimensions.
  • Fuel Economy: While the Duramax diesel offers excellent towing efficiency, both engine options will have lower fuel economy ratings compared to lighter-duty trucks or SUVs. This is a trade-off for the immense power and capability they provide.
  • Ride Comfort When Unladen: As mentioned, the ride quality when the truck is not carrying a load or towing a trailer can be on the firmer side. This is a deliberate design choice to ensure stability under heavy loads, but it might not be as plush as some lighter trucks.
  • Cost of Diesel Fuel and Maintenance: If opting for the Duramax diesel, be prepared for higher diesel fuel prices and potentially more expensive maintenance services and parts compared to gasoline engines.

Overall Summary

The 2020 GMC Sierra 3500HD is an exceptional choice for individuals and businesses that require uncompromising towing and hauling capability. It offers a powerful and durable platform, enhanced by modern technology and a range of trims to suit various needs, from dedicated work trucks to more luxuriously appointed haulers. While its size and fuel consumption are considerations, its ability to confidently tackle the most demanding tasks makes it a highly capable and reliable partner for serious towing and hauling.

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Listed on April 2, 2026 (7 days ago)
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