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2025 GMC Sierra 3500 HD Denali

Truck (Crew Cab) · 401 hp

Sticker from

$74,400Factory MSRP, base configuration

Overview.

At a glance

401 hp4WD

Good

20,000-lb max towing
Up to 6,428-lb payload
401 hp
Heated, ventilated front seats

Watch for

Crew cab only
Turbo-diesel adds $9,990

The 2025 GMC Sierra 3500 HD Denali is a crew-cab truck with four-wheel drive, a 401-hp 6.6L 8-cylinder engine and a 10-speed shiftable automatic transmission.

Its MSRP ranges from $74,400 to $78,000. Maximum towing is 20,000 lbs, while maximum payload varies from 4,309 to 6,428 lbs across short-bed, long-bed and dual-rear-wheel configurations.

Standard cabin equipment includes premium leather, heated and ventilated front seats, heated rear seats, a heated steering wheel and dual-zone front climate control. A 13.4-inch infotainment display, Bose speakers, wireless Android Auto and Apple CarPlay, wireless charging and adaptive cruise control are also standard. Driver-assistance equipment includes blind-spot and lane-departure warnings, rear cross-traffic alert, front and rear parking sensors, and front, side and rear cameras.

The Duramax 6.6L Turbo-Diesel V8 Engine adds $9,990. Other available equipment includes the $545 Gooseneck/5th Wheel Prep Package, $1,340 Technology Package and $1,500 Power Retractable Assist Steps. Basic warranty coverage is 36 months or 36,000 miles, and powertrain coverage is 60 months or 60,000 miles.

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

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

22" High Gloss Black Aluminum Wheels w/Machined Accents$3,450

20" Machined Aluminum Bolt Pattern Wheels w/High Gloss Black Accents$3,350

20" High Gloss Black Aluminum Wheels w/Machined Accents$2,995

20" High Gloss Black Painted Wheels$2,950

Denali Reserve Package$1,835

Power Retractable Assist Steps$1,500

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

Technology Package$1,340

Power Glass Sunroof$995

Denali Illumination Package$950

MultiPro Tailgate Audio System by Kicker$875

Body Color Wheel Arch Moldings$865

Tri-Fold Soft Tonneau Cover$750

Auxiliary Trailer Camera$650

Cargo Convenience Package$595

Gooseneck/5th Wheel Prep Package$545

Snow Plow Prep/Camper Package$530

Red Illuminated Front GMC Emblem$450

GMC Protection Package$435

Dual Alternators$380

Console-Mounted Safe$325

Gooseneck Hitch Package$325

Universal Vehicle Module$295

All-Weather Floor Liner$250

Rear Under Seat Storage$250

Black Front and Rear Molded Splash Guards$225

High Idle Switch$200

Sport Pedal Cover Kit$195

GMC MultiPro Tailgate Step Lights$195

Cargo Tie-Down Rings$150

220 Amp Alternator$150

Upfitter Switch Kit$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

Front License Plate Kit$0

Federal Emissions Requirements$0

California State Emissions Requirements$0

State-Specific Emissions Override$0

California Emissions Override$0

Federal Emissions Override$0

Northeast Emissions$0

3 Years SiriusXM—

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Which Sierra 3500 HD is right for you?

Six trims, $45,600 to $95,300. Tap one to open it.

$45,600−$28,800Pro401 hp $50,400−$24,000SLE401 hp $61,700−$12,700SLT401 hp $70,300−$4,100AT4401 hp $74,400This trimDenali401 hp $95,300+$20,900Denali Ultimate470 hp

Bar heights follow the price. The widest step is $20,900, from Denali to Denali Ultimate.

The numbers.

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

401hp6.6L eight-cylinder

464lb-ftTorque

4WD10-speed shiftable automatic

5Seats

7,151–7,534 lbsCurb weight

11,550–14,000 lbsGVWR

20,000 lbsMax towing

4,309–6,428 lbsMax payload

137 standard items.

Five groups, sized by how much is in each.

2 interiors

Atmosphere/Brownstone
Jet Black

Both premium leather.

6 factory paints

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

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 2025 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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