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2026 GMC Sierra 3500 HD Denali

Truck (Crew Cab) · 401 hp

Sticker from

$76,100Factory MSRP, base configuration

Overview.

At a glance

401 hp4WD

Good

20,000-lb max towing
6,378-lb max payload
Standard heated and ventilated seats
Standard adaptive cruise control
13.4-inch infotainment display

Watch for

Diesel engine costs $9,990
Power sunroof costs $995

The 2026 GMC Sierra 3500 HD Denali is a crew-cab truck with four-wheel drive, a 6.6L 8-cylinder gas engine, 401 hp and a 10-speed shiftable automatic transmission.

MSRP runs from $76,100 to $79,100. Maximum towing is 20,000 lbs, while maximum payload ranges from 4,362 lbs to 6,378 lbs depending on cab-and-bed configuration. GVWR ranges from 11,550 lbs to 14,000 lbs.

Standard cabin equipment includes premium leather, heated and ventilated front bucket seats, heated rear seats, dual-zone front climate control and a heated steering wheel. The infotainment system has a 13.4-inch display, Bose speakers and wireless Android Auto and Apple CarPlay. Adaptive cruise control, front and rear parking sensors, front, side and rear camera views, blind-spot and lane-departure warnings, rear cross-traffic alert and a pre-collision safety system are also standard.

Available equipment includes the $9,990 Duramax 6.6L Turbo-Diesel V8 Engine, a $1,340 Technology Package and the $545 Gooseneck/5th Wheel Prep Package.

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48 factory options, from $35 to $9,990.

Duramax 6.6L Turbo-Diesel V8 Engine$9,990

20" Machined Aluminum Wheels w/High Gloss Black Accents$3,395

20" High Gloss Black Aluminum Wheels w/Machined Accents$3,050

20" High Gloss Black Painted Wheels$2,995

Denali Reserve Package$1,835

18" Polished Forged Aluminum Wheels$1,550

Power Retractable Assist Steps$1,500

Hard-folding Truck Bed Cover by RealTruck Advantage$1,495

Technology Package$1,340

Power Glass Sunroof$995

MultiPro Tailgate Audio System by Kicker$975

Denali Illumination Package$950

Soft Folding Truck Bed Cover by RealTruck Advantage$750

Auxiliary Trailer Camera$650

Cargo Convenience Package$650

Gooseneck/5th Wheel Prep Package$545

Snow Plow Prep/Camper Package$530

Red Illuminated Front GMC Emblem$495

Dual Alternators$380

Gooseneck Hitch Package$375

Console-Mounted Safe$350

Rear Under Seat Storage$325

Universal Vehicle Module$295

All-Weather Floor Liner$265

GMC MultiPro Tailgate Step Lights$250

High Idle Switch$200

Mobile Service Plus$199

Sport Pedal Cover Kit$195

Upfitter Switch Kit$150

Cargo Tie-Down Rings$150

220 Amp Alternator$150

Auxiliary Battery$135

Premium Front Floor Liners$130

Wheel Locks$125

Engine Block Heater$100

Trailer Tire Pressure Monitor Sensors$50

Heavy Duty Front Spring/Camper Package$45

Trailering Wiring Provisions$35

California Emissions Override$0

State-Specific Emissions Override$0

Front License Plate Kit$0

Northeast Emissions$0

California State Emissions Requirements$0

Federal Emissions Override$0

Federal Emissions Requirements$0

3 Years SiriusXM—

Black Badging Package—

Deleted Mobile Service Plus—

Which Sierra 3500 HD is right for you?

Six trims, $47,900 to $97,200. Tap one to open it.

$47,900−$28,200Pro401 hp $54,700−$21,400SLE401 hp $65,900−$10,200SLT401 hp $72,800−$3,300AT4401 hp $76,100This trimDenali401 hp $97,200+$21,100Denali Ultimate470 hp

Bar heights follow the price. The widest step is $21,100, from Denali to Denali Ultimate.

The numbers.

Three configurations: four-wheel drive, 10-speed automatic.

401hp6.6L eight-cylinder

464lb-ftTorque

4WD10-speed shiftable automatic

5Seats

7,144–7,578 lbsCurb weight

11,550–14,000 lbsGVWR

20,000 lbsMax towing

4,362–6,378 lbsMax payload

136 standard items.

Five groups, sized by how much is in each.

2 interiors

Atmosphere/Brownstone
Jet Black

Both premium leather.

6 factory paints

Glacier White Tricoat
Onyx Black
Sterling Metallic
Titanium Rush Metallic
Summit White
Downpour Metallic

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 2026 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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