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New 2026 GMC Sierra 3500 AT4 Crew Cab

Stock #260842

Window Sticker

Chassis Details

Stock Number

260842

Stock Type

New

Year

2026

Make

GMC

Model

Sierra 3500

Class

GVWR

12,250

Drivetrain

4WD

Cab Type

Crew

Vehicle Trim

AT4

Interior Color

Jet Black w/Kalahari Accents

Seating Capacity

Exterior Color Description

Onyx Black

Engine Cylinder Count

Engine

V8, 6.6L

Transmission Type

Automatic

Fuel Type

Diesel

Engine Model

L5P

Engine Size (L)

6.6

Vehicle Options

Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Premium Front Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Premium Rear Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Windows with Passenger Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Gloss Black Header and Grille Insert Bars; Rear Wheelhouse Liners
AT4 Premium Plus Package: Power Sunroof; Off-Road High Clearance Step
Technology Package: Multicolor 15" Diagonal Head-Up Display; Auto-Dimming Inside Rearview Mirror with Camera
AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote
Off-Road High Clearance Step
Power Sunroof
Body Color Wheel Arch Moldings
Gooseneck/5th Wheel Prep Package
Onyx Black
Hitch Package
LT275/65R20E 126/123 Off-Road T/A KO3 Tires
LED Smoked Amber Roof Marker Lamps
Forward collision mitigation with pedestrian impact prevention
Pedestrian impact prevention
Mobile hotspot internet access
Rear mounted camera
Adaptive cruise control
Head-up display
Automatic Emergency Braking brake assist system
Cruise control with steering wheel mounted controls
Ventilated driver and front passenger seats
Keyfob remote start
Heated steering wheel
Heated driver and front passenger seats
Heated rear seats
Leather front seat upholstery
Primary monitor touchscreen
Lane departure warning
Rear collision warning
First-row sliding and tilting glass sunroof with power 1-touch activation sunshade
Driver seat power reclining
lumbar support
cushion tilt
fore/aft control and height adjustable control
AutoTrac part and full-time 4WD
Duramax 6.6L V-8 direct injection
intercooled turbo
diesel
engine with 470HP
Duramax 6.6L V-8
Front wireless smart device charging
Built-in virtual assistant
Teen Driver restricted driving mode/alerts
Keyless Open/Keyless Start with hands-free access and push button start
Keyfob window control
Aerial view camera
Smart device remote start
Push-button
Weight capacity alert
Video-feed rearview mirror
Wireless audio streaming
Hitch Guidance with Hitch View vehicle to trailer hitching assist
Gauge cluster display size: 12.30
Front mounted camera with washer
Right side camera
Pickup box camera
Left side camera
Blind spot warning
Trailer tire pressure sensors
Trailer light test
Trailer light malfunction warning
Trailer theft alarm
Dual-zone front climate control
Full gauge cluster screen
Auto high-beam headlights
Immobilizer
Bose speakers
OnStar Services capable vehicle integrated emergency SOS system
View All