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2021 GMC Sierra 3500 HD SLE

Truck (Crew Cab) · 401 hp

Sticker from

$42,200Factory MSRP, base configuration

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54 factory options, from $35 to $9,890.

Duramax 6.6L Turbo-Diesel V8 Engine$9,890

SLE Value Package$2,375

SLE Convenience Package$2,330

Preferred Package$1,260

Bedside Storage Boxes$1,250

Gooseneck/5th Wheel Package$1,090

Power Take-Off$995

Assist Step and Floor Liner Package$895

Driver Alert Package I$890

MultiPro Audio System by Kicker$815

20" Machined Aluminum Wheels w/Bright Silver Accents$800

Chromed 6" Rectangular Tubular Assist Steps$795

4" Round Chromed Tubular Assist Steps$775

6" Rectangular Chromed Tubular Assist Steps$775

Tri-fold Soft Tonneau Cover$700

Body Color Wheel Arch Moldings$685

Driver Alert Package II$595

Auxiliary Trailer Camera$595

Spray-On Bed Liner$545

Remote Start Package$525

Outside Vertical Trailering Mirrors$510

ProGrade Trailering System$460

Dual Alternators$380

GMC Protection Package$370

Gooseneck Hitch Package$295

Rear Under Seat Storage$275

Bed View Camera$250

Electric Rear-Window Defogger$225

All-Weather Floor Liner$210

GMC MultiPro Tailgate Step Lights$200

LT275/65R20 All-Terrain Blackwall Tires$200

High Idle Switch$200

Black Front and Rear Molded Splash Guards$190

220 Amp Alternator$150

Underbody Shield$150

Upfitter Switch Kit$150

Auxiliary Battery$135

LED Cargo Area Lighting$125

Cargo Tie-Down Rings$105

Engine Block Heater$100

Smoked Amber LED Roof Marker Lamps$55

Trailer Tire Pressure Monitor Sensors$50

Heavy Duty Front Spring/Camper Package$45

Trailering Wiring Provisions$35

Outside Heated Power-Adjustable Mirrors−$160

Standard Tailgate−$450

California Emissions Override—

California State Emissions Requirements—

Federal Emissions Override—

Federal Emissions Requirements—

Front License Plate Kit—

Northeast Emissions—

Rubberized-Vinyl Floor Covering—

State-Specific Emissions Override—

Which Sierra 3500 HD is right for you?

Five trims, $37,100 to $66,100. Tap one to open it.

$37,100−$5,100Base401 hp $42,200This trimSLE401 hp $54,000+$11,800SLT401 hp $59,600+$17,400AT4401 hp $66,100+$23,900Denali401 hp

Bar heights follow the price. The widest step is $11,800, from SLE to SLT.

The numbers.

14 configurations: rear-wheel or four-wheel drive, 6-speed automatic.

401hp6.6L eight-cylinder

464lb-ftTorque

RWD / 4WD6-speed shiftable automatic

3–6Seats

6,231–7,352 lbsCurb weight

10,750–14,000 lbsGVWR

14,500–20,000 lbsMax towing

4,316–7,442 lbsMax payload

110 standard items.

Five groups, sized by how much is in each.

2 interiors

Dark Walnut/Slate
Jet Black

Both cloth.

8 factory paints

Pacific Blue Metallic
Cayenne Red Tintcoat
Summit White
Ebony Twilight Metallic
Brownstone Metallic
Quicksilver Metallic
Onyx Black
Cardinal Red

Safety and recalls

No recall campaigns on file.

Recalls are settled per car, not per model. Check the one you are buying.

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Overall—Not rated

Frontal—Not rated

Side—Not rated

Rollover—Not rated

NHTSA has not published ratings for the 2021 Sierra 3500 HD. A model year is often unrated for a year or more after it goes on sale.

NHTSA NCAP · checked Oct 2026

Factory coverage.

It runs from the first sale date, not the model year.

Basic

3 yr / 36,000 mi

Powertrain

5 yr / 60,000 mi

Rust

6 yr / 100,000 mi

Roadside

5 yr / 60,000 mi

Maintenance

1 yr

Sold2 yr4 yr6 yr

See extended plan pricesLive prices for this car. They depend on its age and mileage.See prices

What would this Sierra 3500 HD cost to insure?

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Other years of the Sierra 3500 HD SLE.

Pictures show this year's car in another paint. Starting MSRP is before destination, taxes and dealer fees.