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Used 2020 GMC Sierra 3500HD Specs & Features

Starting MSRP

Engine TypeGas
Transmission6-speed shiftable automatic
Drive TypeFour wheel drive
Total Seating5
Basic Warranty3 yr./ 36,000 mi.
Fuel & MPG
Fuel & MPG
Fuel typeRegular unleaded
Range in miles (city/hwy)0/0 mi.
Fuel tank capacity36.0 gal.
Base engine size6.6 L
Base engine typeGas
Horsepower401 hp @ 5,200 rpm
Torque464 lb-ft @ 4,000 rpm
Cam typeOverhead valves (OHV)
Valve timingVariable
Direct injectionyes
Towing & Hauling
Towing & Hauling
Max Towing Capacity20,000 lbs.
Max Payload Capacity4,365 lbs.
Transmission6-speed shiftable automatic
Drive typeFour wheel drive
On demand 4WDyes
Electronic hi-lo gear selectionyes
Automatic locking hubsyes
Rear locking differentialyes
Descent controlyes
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*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details.
Front independent suspensionyes
Stabilizer bar stabilizer baryes
Length250.1 in.
Overall width without mirrors81.9 in.
Height80.9 in.
Wheelbase158.9 in.
Bed length82.2 in.
Turning circle52.7 ft.
Ground clearance11.2 in.
Curb weight6,947 lbs.
Maximum towing capacity20,000 lbs.
Maximum payload4,365 lbs.
Gross weight11,350 lbs.
Exterior Colors
  • Onyx Black
  • Pacific Blue Metallic
  • Red Quartz Tintcoat
  • Summit White
  • Quicksilver Metallic
  • Dark Sky Metallic
  • White Frost Tricoat
  • Carbon Black Metallic
Interior Colors
  • Jet Black, premium leather
  • Dark Walnut/Dark Ash Grey, premium leather
Front Seat Dimensions
Front Seat Dimensions
Front head room43.0 in.
Front leg room44.5 in.
Front shoulder room66.0 in.
Front hip room61.2 in.
Premium leatheryes
Bucket front seatsyes
8-way power driver seatyes
Height adjustable driver seatyes
Driver seat with power adjustable lumbar supportyes
8-way power passenger seatyes
Height adjustable passenger seatyes
Passenger seat with power adjustable lumbar supportyes
Multi-level heating driver seatyes
Multi-level heating passenger seatyes
Ventilated driver seatyes
Ventilated passenger seatyes
Rear Seat Dimensions
Rear Seat Dimensions
Rear head room40.1 in.
Rear leg room43.4 in.
Rear shoulder room65.3 in.
Rear hip room60.2 in.
Split-folding rear seatbackyes
Folding with storage center armrestyes
Multi-level heatingyes
Blind spot and lane departure warnings accident avoidance systemyes
Pre-collision safety systemyes
Post-collision safety systemyes
Dual front side-mounted airbagsyes
Front and rear head airbagsyes
Passenger airbag occupant sensing deactivationyes
Stability controlyes
Traction controlyes
Child seat anchorsyes
Rear door child safety locksyes
4-wheel ABSyes
Front and rear ventilated disc brakesyes
Tire pressure monitoringyes
Dusk sensing headlampsyes
Auto delay off headlampsyes
LED headlampyes
Daytime running lightsyes
Front fog/driving lightsyes
Turn signal mirrorsyes
2 front headrestsyes
2 rear headrestsyes
Rear height adjustable headrestsyes
Rear center 3-point beltyes
Engine immobilizeryes
In-Car Entertainment
In-Car Entertainment
AM/FM stereoyes
Bose premium brand speakersyes
7 total speakersyes
1 subwoofer(s)yes
USB connectionyes
Auxiliary audio input and USB with external media controlyes
Memory card slotyes
Satellite radio satellite radioyes
Speed sensitive volume controlyes
Power Feature
Power Feature
4 one-touch power windowsyes
Hands-free entryyes
Reverse tilt dual mirrors provides curb view when vehicle in reverseyes
Heated mirrorsyes
Comfort & Convenience
Comfort & Convenience
Keyless ignitionyes
Tilt and telescopic steering wheelyes
Audio and cruise controls on steering wheelyes
Power steeringyes
Rear view camerayes
Front and rear parking sensorsyes
Cruise controlyes
Universal remote transmitter (for garage door, security system, etc.)yes
Front and rear cupholdersyes
Front and rear door pocketsyes
Front seatback storageyes
Leather steering wheelyes
Heated steering wheelyes
Dual zone front climate controlyes
Rear ventilation ductsyes
Sun sensoryes
Dual illuminating vanity mirrorsyes
Electrochromatic inside rearview mirroryes
Turn signal in mirrorsyes
Trip computeryes
External temperature displayyes
Tires & Wheels
Tires & Wheels
Polished alloy wheelsyes
20 in. wheelsyes
All terrain tiresyes
LT275/70R18 tiresyes
Fullsize non-matching spare tireyes
Underbody mounted spare tireyes
Basic3 yr./ 36,000 mi.
Drivetrain5 yr./ 60,000 mi.
Rust6 yr./ 100,000 mi.
Roadside5 yr./ 60,000 mi.
Mechanical Options
Mechanical Options
Heavy Duty Front Spring Package +$45
Engine Block Heater +$100
Trailer Tire Pressure Monitor Sensors +$50
Gooseneck Hitch Package +$295
Dual Alternators +$380
220 Amp Alternator +$150
Duramax 6.6L Turbo-Diesel V8 Engine +$9,750
High Idle Switch +$200
Gooseneck/5th Wheel Package +$795
Auxiliary Battery +$135
Trailering Wiring Provisions +$35
Snow Plow Prep Package w/Dual Alternators +$380
Technology Package +$1,875
GMC Protection Package +$370
Cargo Convenience Package +$515
Snow Plow Prep Package +$150
Denali Ultimate Package +$2,370
Interior Options
Interior Options
Rear Seat Infotainment System w/DVD Player +$1,995
All-Weather Floor Liner +$210
Lockable Console Vault +$295
Rear Under Seat Storage +$265
Exterior Options
Exterior Options
20" High Gloss Black Painted Wheels +$2,495
20" Chrome Aluminum Wheels +$2,495
Power Glass Sunroof +$995
Black Front and Rear Molded Splash Guards +$180
Bed View Camera +$250
Tri-fold Soft Tonneau Cover +$700
Rubber Bed Mat +$155
Body Color Wheel Arch Moldings +$685
Auxiliary Trailer Camera +$595
Wheel Locks +$75
Standard Tailgateyes
Front License Plate Kit +$0