2021 GMC Sierra 2500HD Specs & Features

Overview
Overview
Starting MSRP
$58,600

Engine TypeGas
Transmission6-speed shiftable automatic
Drive TypeFour wheel drive
CylindersV8
Total Seating5
Basic Warranty3 yr./ 36,000 mi.
Drivetrain
Drivetrain
automatic locking hubsyes
descent controlyes
electronic hi-lo gear selectionyes
on demand 4WDyes
Drive typeFour wheel drive
Rear locking differentialyes
Transmission6-speed shiftable automatic
Fuel & MPG
Fuel & MPG
Fuel tank capacity36.0 gal.
Fuel typeRegular unleaded
Range in miles (cty/hwy)0/0 mi.
Engine
Engine
direct injectionyes
Base engine size6.6 l
Base engine typeGas
Cam typeOverhead valves (ohv)
CylindersV8
Horsepower401 hp @ 5,200 rpm
Torque464 lb-ft @ 4,000 rpm
Turning circle52.7 ft.
Valve timingVariable
Valves16
Towing & Hauling
Towing & Hauling
Max Towing Capacity18,500 lbs.
Max Payload Capacity3,862 lbs.
Safety
Safety
2 front headrestsyes
2 rear headrestsyes
LED headlampyes
auto delay off headlampsyes
child seat anchorsyes
daytime running lightsyes
dual front side-mounted airbagsyes
dusk sensing headlampsyes
engine immobilizeryes
front and rear head airbagsyes
front fog/driving lightsyes
post-collision safety systemyes
remote anti-theft alarm systemyes
stability controlyes
tire pressure monitoringyes
traction controlyes
4-wheel ABSyes
Front and rear ventilated disc brakesyes
Passenger airbag occupant sensing deactivationyes
Rear center 3-point beltyes
Rear door child safety locksyes
Rear height adjustable headrestsyes
Turn signal mirrorsyes
Packages
Packages
AT4 Preferred Package +$2,075
Snow Plow Prep/Camper Package +$300
Technology Package +$1,275
AT4 Premium Plus Package +$6,975
GMC Protection Package +$370
Cargo Convenience Package +$515
In-Car Entertainment
In-Car Entertainment
6 total speakersyes
USB connectionyes
auxiliary audio input and USB with external media controlyes
memory card slotyes
satellite radio satellite radioyes
speed sensitive volume controlyes
AM/FM stereoyes
Comfort & Convenience
Comfort & Convenience
cruise controlyes
front and rear cupholdersyes
front and rear door pocketsyes
front seatback storageyes
keyless ignitionyes
power steeringyes
rear view camerayes
tilt-adjustable steering wheelyes
Audio and cruise controls on steering wheelyes
Sun sensoryes
electrochromatic inside rearview mirroryes
heated steering wheelyes
leather steering wheelyes
turn signal in mirrorsyes
Dual illuminating vanity mirrorsyes
Dual zone front climate controlyes
Power Feature
Power Feature
4 one-touch power windowsyes
hands-free entryyes
Heated mirrorsyes
Interior Options
Interior Options
Lockable Console Vault +$295
Console Insert Organizer Tray +$70
Rear Under Seat Storage +$275
AT4 All-Weather Floor Liners +$260
Instrumentation
Instrumentation
clockyes
compassyes
external temperature displayyes
tachometeryes
trip computeryes
Front Seat Dimensions
Front Seat Dimensions
8 -way power driver seatyes
8 -way power passenger seatyes
bucket front seatsyes
height adjustable driver seatyes
height adjustable passenger seatyes
leatheryes
multi-level heating driver seatyes
multi-level heating passenger seatyes
ventilated driver seatyes
ventilated passenger seatyes
Driver seat with power adjustable lumbar supportyes
Front head room43.0 in.
Front hip room61.2 in.
Front leg room44.5 in.
Front shoulder room66.0 in.
Passenger seat with power adjustable lumbar supportyes
Rear Seat Dimensions
Rear Seat Dimensions
folding center armrestyes
multi-level heatingyes
rear ventilation ductsyes
Rear head room39.9 in.
Rear hip Room60.2 in.
Rear leg room43.4 in.
Rear shoulder room65.3 in.
Split-folding rear seatbackyes
Exterior Options
Exterior Options
Black Front and Rear Molded Splash Guards +$190
Smoked Amber LED Roof Marker Lamps +$55
20" Machined Aluminum Wheels w/High Gloss Black Accents +$800
20" High Gloss Black Painted Wheels +$2,995
Power Glass Sunroof +$995
20" High Gloss Black Aluminum Wheels w/Machined Finish +$2,995
LT275/65R20 All-Terrain Blackwall Tires +$200
Bed View Camera +$250
Body Color Wheel Arch Moldings +$685
Auxiliary Trailer Camera +$595
LT275/70R18, Mud-Terrain, Blackwall Tires +$295
AT4 High Clearance Step +$1,095
GMC MultiPro Tailgate Step Lights +$200
Cargo Tie-Down Rings +$105
MultiPro Audio System by Kicker +$815
Black Sport Step +$965
Front License Plate Kityes
Dimensions
Dimensions
Bed Length98.3 in.
Curb weight6,950 lbs.
Gross weight10,850 lbs.
Ground clearance10.1 in.
Height79.7 in.
Length266.1 in.
Maximum payload3,862 lbs.
Maximum towing capacity18,500 lbs.
Overall Width without Mirrors81.9 in.
Wheel base172.0 in.
Colors
Colors
Exterior Colors
  • Pacific Blue Metallic
  • Ebony Twilight Metallic
  • Cayenne Red Tintcoat
  • Summit White
  • Brownstone Metallic
  • Onyx Black
Interior Colors
  • Jet Black w/Kalahari Accents, leather
Tires & Wheels
Tires & Wheels
fullsize non-matching spare tireyes
painted alloy wheelsyes
underbody mounted spare tireyes
18 in. wheelsyes
All terrain tiresyes
LT275/70R18 tiresyes
Suspension
Suspension
front independent suspensionyes
Stabilizer bar stabilizer baryes
Warranty
Warranty
Basic3 yr./ 36,000 mi.
Drivetrain5 yr./ 60,000 mi.
Free Maintenance1 yr./ unlimited mi.
Roadside5 yr./ 60,000 mi.
Rust6 yr./ 100,000 mi.
Inventory