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2026 GMC Sierra 3500 HD SLE

Truck (Regular Cab) · 401 hp

Sticker from

$54,700Factory MSRP, base configuration

Overview.

At a glance

401 hp4WD

Good

20,000-lb max towing
6,947-lb max payload
401-hp engine
13.4-inch infotainment display

Watch for

Manual front seat adjustments
Single-zone front air conditioning

The 2026 GMC Sierra 3500 HD SLE is a four-wheel-drive heavy-duty truck offered in regular cab, double cab and crew cab forms.

Long-bed and short-bed configurations are available, along with dual-rear-wheel versions. Its 6.6L 8-cylinder gas engine produces 401 hp and uses a 10-speed shiftable automatic transmission.

Maximum towing ranges from 14,500 to 20,000 lbs, while maximum payload ranges from 4,362 to 6,947 lbs. The MSRP spans $54,700 to $60,100 across the cab, bed and rear-wheel configurations.

Standard cabin equipment includes cloth seating, a 40-20-40 split front bench, keyless ignition, cruise control and a rearview camera. A 13.4-inch infotainment display, wireless Android Auto and Apple CarPlay, satellite radio and USB connectivity are also standard. Standard driver-assistance features include lane departure warning and a pre-collision safety system. Available equipment includes the $1,090 Gooseneck/5th Wheel Prep Package, $1,540 Max Trailering Package, $445 GMC MultiPro Tailgate and $9,990 Duramax 6.6L Turbo-Diesel V8 Engine.

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

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

SLE Value Package$1,885

Max Trailering Package$1,540

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

Preferred Package$1,415

20" Bright Face Wheels w/Dark Painted Pockets$1,400

Sierra HD Pro Safety Plus Package$1,335

X31 Off-Road and Protection Package$1,135

20" Bright Face Wheels w/Dark Painted Pockets$1,100

Gooseneck/5th Wheel Prep Package$1,090

Power Take-Off$995

Body Color Wheel Arch Moldings$995

MultiPro Tailgate Audio System by Kicker$975

Assist Step and Floor Liner Package$950

SLE Convenience Package$915

6" Rectangular Chromed Tubular Assist Steps$895

Preferred Package$840

Assist Step and Floor Liner Package$825

Chromed Tubular 6" Rectangular Assist Steps$795

4" Round Black Tubular Assist Steps$750

Soft Folding Truck Bed Cover by RealTruck Advantage$750

4" Round Chromed Tubular Assist Steps$750

Front Bucket Seats w/Center Console (Fleet)$655

Auxiliary Trailer Camera$650

Spray-On Bed Liner$545

Rear Camera Mirror (Fleet)$540

Snow Plow Prep/Camper Package$530

Remote Start Package$525

X31 Off-Road Package$525

Outside Vertical Trailering Mirrors$515

GMC Protection Package$495

Sierra HD Pro Safety Plus Package$490

GMC MultiPro Tailgate$445

GMC Protection Package$425

SLE Heated Package$400

LT275/65R20 All-Terrain Blackwall Tires$400

LT265/70R17E All-Terrain Blackwall Spare Tire$380

LT275/70R18 All-Terrain Blackwall Spare Tire$380

LT245/75R17E All-Season Blackwall Spare Tire$380

Dual Alternators$380

Gooseneck Hitch Package$375

Rear Under Seat Storage$325

18" Machined Aluminum Wheels w/Dark Grey Metallic Accents$300

Universal Vehicle Module$295

Black Front and Rear Molded Splash Guards$275

All-Weather Floor Liner$265

GMC MultiPro Tailgate Step Lights$250

Diesel Particulate Filter (DPF) Manual Regeneration (Fleet)$250

Electric Rear-Window Defogger$225

Premium Front Floor Liners$210

High Idle Switch$200

LT275/65R20 All-Terrain Blackwall Tires$200

LT275/70R18E All-Terrain Blackwall Tires$200

LT265/70R17E All-Terrain Blackwall Tires$200

Autotrac Active 2-Speed Electronic Transfer Case$200

Mobile Service Plus$199

Skid Plates$150

Cargo Tie-Down Rings$150

Upfitter Switch Kit$150

220 Amp Alternator$150

All-Weather Floor Liner$150

Rear Wheelhouse Liners$140

Auxiliary Battery$135

Wheel Locks$125

LED Cargo Area Lighting$125

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

Northeast Emissions$0

State-Specific Emissions Override$0

Front License Plate Kit$0

California State Emissions Requirements$0

Federal Emissions Requirements$0

Federal Emissions Override$0

California Emissions Override$0

Rubberized-Vinyl Floor Covering$0

Outside Heated Power-Adjustable Mirrors−$160

17" Silver Painted Steel Wheels (Fleet)−$350

18" 8-Spoke Silver Extended Painted Steel Wheels (Fleet)−$350

Pickup Bed Delete−$1,215

3 Years OnStar One—

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−$6,800Pro401 hp $54,700This trimSLE401 hp $65,900+$11,200SLT401 hp $72,800+$18,100AT4401 hp $76,100+$21,400Denali401 hp $97,200+$42,500Denali Ultimate470 hp

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

The numbers.

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

401hp6.6L eight-cylinder

464lb-ftTorque

4WD10-speed shiftable automatic

3–6Seats

6,672–7,578 lbsCurb weight

11,300–14,000 lbsGVWR

14,500–20,000 lbsMax towing

4,362–6,947 lbsMax payload

138 standard items.

Five groups, sized by how much is in each.

2 interiors

Dark Walnut/Slate
Jet Black

Both cloth.

6 factory paints

Sterling Metallic
Onyx Black
Cardinal Red
Titanium Rush Metallic
Coastal Dune
Summit White

Safety and recalls

No recall campaigns on file.

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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 / 100,000 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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