Used 2021 GMC Sierra 3500HD Double Cab - Specs & Features

More about the 2021 Sierra 3500HD

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Starting MSRP

$42,700

Overview

Gas Engine

Drive Type	four wheel drive
Total Seating	6
Bed length	98.3 in.
Payload Capacity	4,391 lbs.
Towing Capacity	14,500 lbs.
Curb Weight	6,971 lbs.
Basic Warranty	3 yr./ 36,000 mi.
Country of final assembly	United States

Fuel & MPG

Fuel type	Regular unleaded
Range in miles (city/hwy)	0/0 mi.
Fuel tank capacity	36.0 gal.

2021 GMC Sierra 3500HD for sale near you

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Base Double Cab
MSRP: $42,988
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SLT Diesel Crew Cab
MSRP: $52,898
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See all 19 listings

Engine

Base engine size	6.6 L
Cylinders	V8
Base engine type	Gas

Horsepower	401 hp @ 5,200 rpm
Torque	464 lb-ft @ 4,000 rpm
Valves	16
Cam type	Overhead valves (OHV)
Valve timing	Variable
Direct injection	Standard

Towing & Hauling

Max Towing Capacity	14,500 lbs.
Max Payload Capacity	4,391 lbs.

Drivetrain

Transmission	6-speed shiftable automatic
Drive type	Four wheel drive
Part time 4WD	Standard

Electronic hi-lo gear selection	Standard
Automatic locking hubs	Standard
Rear locking differential	Standard

Suspension

Front independent suspension	Standard
Stabilizer bar stabilizer bar	Standard

Dimensions

Length	256.5 in.
Overall width without mirrors	81.9 in.
Height	80.9 in.

Wheelbase	162.5 in.
Bed length	98.3 in.
Turning circle	53.9 ft.
Ground clearance	11.2 in.
Curb weight	6,971 lbs.
Maximum towing capacity	14,500 lbs.
Maximum payload	4,391 lbs.
Gross weight	11,400 lbs.
Country of final assembly	United States

Colors

Exterior Colors	Onyx Black Quicksilver Metallic Cardinal Red Pacific Blue Metallic Summit White Brownstone Metallic
Interior Colors	Jet Black, vinyl Jet Black, cloth

Front Seat Dimensions

Front head room	43.0 in.
Front leg room	44.5 in.
Front shoulder room	66.0 in.

Front hip room	61.2 in.
Vinyl	Standard
40-20-40 split bench front seats	Standard
4-way manual driver seat adjustments	Standard
4-way manual passenger seat adjustment	Standard

Rear Seat Dimensions

Rear head room	39.9 in.
Rear leg room	35.2 in.
Rear shoulder room	64.9 in.

Rear hip room	60.2 in.
Split-folding rear seatback	Standard

Safety

Dual front side-mounted airbags	Standard
Front and rear head airbags	Standard
Passenger airbag occupant sensing deactivation	Standard

Stability control	Standard
Traction control	Standard
Child seat anchors	Standard
Rear door child safety locks	Standard
4-wheel ABS	Standard
Front and rear ventilated disc brakes	Standard
Tire pressure monitoring	Standard
Dusk sensing headlamps	Standard
Auto delay off headlamps	Standard
LED headlamp	Standard
Daytime running lights	Standard
2 front headrests	Standard
Front height adjustable headrests	Standard
2 rear headrests	Standard
Rear height adjustable headrests	Standard
Front center 3-point belt	Standard
Rear center 3-point belt	Standard
Engine immobilizer	Standard

In-Car Entertainment

AM/FM stereo	Standard
6 total speakers	Standard
Android Auto/Apple CarPlay	Standard

USB connection	Standard
USB with external media control	Standard
Speed sensitive volume control	Standard

Power Feature

4 one-touch power windows	Standard
Power door locks	Standard
Heated mirrors	Standard

Comfort & Convenience

Tilt-adjustable steering wheel	Standard
Power steering	Standard
Rear view camera	Standard

Front cupholders	Standard
Front and rear door pockets	Standard
Single zone front air conditioning	Standard
Rear ventilation ducts	Standard

Instrumentation

Trip computer	Standard
External temperature display	Standard
Tachometer	Standard

Clock	Standard

Tires & Wheels

Painted steel wheels	Standard
18 in. wheels	Standard
All terrain tires	Standard

LT275/70R18 tires	Standard
Fullsize matching spare tire	Standard
Underbody mounted spare tire	Standard

Warranty

Basic	3 yr./ 36,000 mi.
Drivetrain	5 yr./ 60,000 mi.
Rust	6 yr./ 100,000 mi.

Roadside assistance	5 yr./ 60,000 mi.
Free maintenance	1 yr./ unlimited mi.

Mechanical Options

Engine Block Heater	+$100
Underbody Shield	+$150
Heavy Duty Front Spring/Camper Package	+$45

Power Take-Off	+$995
Duramax 6.6L Turbo-Diesel V8 Engine	+$9,890
220 Amp Alternator	+$150
Gooseneck Hitch Package	+$295
Trailering Wiring Provisions	+$35
Auxiliary Battery	+$135
Gooseneck/5th Wheel Package	+$1,365
Integrated Trailer Brake Controller	+$275
Dual Alternators	+$380
E85 FlexFuel Capable	+$100
High Idle Switch	+$200

Packages

Snow Plow Prep/Camper Package	+$300
Convenience Package	+$1,310
Convenience Package w/Pickup Bed Delete	+$1,310

X31 Off-Road Package	+$525

Safety & Security Options

1SA Safety Confidence Package	+$615
1SA Driver Alert Package I	+$890

Interior Options

SiriusXM Radio	+$100
Upfitter Switch Kit	+$150
All-Weather Floor Liner	+$210

Cruise Control	+$225
Color-Keyed Carpet Floor Covering	+$100
120-Volt Instrument Panel Power Outlet	+$225
OnStar and GMC Connected Services Capable	+$175

Exterior Options

GMC MultiPro Tailgate	+$445
Black Assist Step	+$450
GMC MultiPro Tailgate Step Lights	+$200

18" Machined Aluminum Wheels w/Dark Grey Metallic Accents	+$300
Deep-Tinted Glass	+$200
Bed View Camera	+$250
LT275/70R18 All-Terrain Blackwall Spare Tire	+$380
Spray-On Bed Liner	+$545
6" Rectangular Black Tubular Assist Steps	+$775
LED Cargo Area Lighting	+$125
4" Round Black Tubular Assist Steps	+$775
Front License Plate Kit	+$0
Outside Heated Power-Adjustable Mirrors	+$50
Smoked Amber LED Roof Marker Lamps	+$55
Outside Vertical Trailering Mirrors	+$720
Black Front and Rear Molded Splash Guards	+$190
Pickup Bed Delete	-$1,155
Cargo Tie-Down Rings	+$105
Electric Rear-Window Defogger	+$225

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