New 2025 GMC Sierra 2500HD AT4

Your Price: $88,055
$1,351*
Monthly!
+tax. 6.99% APR. $8,806 down. 72 month term; OAC.
20
views
Fuel: Diesel
Color: Sterling MetallicInterior: Jet Black With Kalahari Accents
Drivetrain: Four Wheel Drive
Engine: 6.6L 8 Cyl.Automatic (10 Speed)
Stock: MG26602VIN: 1GT4UPEY5SF326602

Location

Description for 2025 GMC Sierra 2500HD AT4 Truck

The 2025 GMC Sierra 2500HD AT4 is designed to provide serious off-road performance and towing capability, while delivering premium interior amenities and advanced technology features for both work and everyday use. With a focus on rugged refinement, this heavy-duty pickup balances trail-ready hardware with comfort and connectivity.

Under the hood, the Sierra 2500HD AT4 is powered by a Duramax 6.6L V8 turbodiesel engine, paired with a 10-speed automatic transmission and a 4WD system featuring a 2-speed active transfer case. This combination supports high torque output for towing, hauling, and navigating rough terrain. The included X31 Off-Road Package enhances off-pavement capability with features like hill descent control, off-road suspension tuning, and skid plates. The Gooseneck/5th Wheel Prep Package, integrated trailer brake controller, Trailer Side Blind Zone Alert, and Trailer Cam Provisions further reinforce the Sierra HDs suitability for demanding trailering needs.

The AT4 trim features distinctive exterior styling elements including Gloss Black header grille bars, smoked amber LED roof marker lamps, and 20-inch high-gloss black aluminum wheels. Deep-tinted glass, rear wheelhouse liners, and LED cargo area lighting add functional and aesthetic enhancements, while the spray-on bedliner with the GMC logo protects the truck bed from wear. The available Off-Road High Clearance Step and bed-mounted 120-volt power outlet add utility for jobsite or recreational use.

Inside the crew cab, the cabin is finished in Jet Black leather with Kalahari accents and is equipped with both heated and ventilated front seats, heated second-row outboard seats, and a floor-mounted center console. The 15-inch multicolor head-up display and Bose premium 7-speaker sound system are part of the Technology Package, which also includes HD Surround Vision and a bed view camera. Wireless Apple CarPlay and Android Auto, wireless charging, and a large digital driver display keep drivers connected and informed without added clutter. USB ports throughout the cabin, including charge-only and data/charge ports, offer versatile power access.

Convenience features include a power sunroof, keyless open and start, push-button start, remote vehicle starter system, and a power sliding rear window with defogger. The Universal Home Remote allows for integration with garage and security systems. Safety is prioritized through features like the Safety Alert Seat, Lane Departure Warning, Rear Cross Traffic Alert, Ultrasonic Front and Rear Park Assist, and an unauthorized entry theft-deterrent system.

With the AT4 Preferred and AT4 Premium Plus Packages included, this configuration enhances luxury and capability with an array of premium upgrades. These packages bring together the most sought-after off-road equipment and in-cabin technology, making this model well-equipped for a broad range of tasks.

For additional peace of mind, every vehicle purchased from Walt Massey comes with a 3 Day Money Back Guarantee. If the vehicle is returned within three business days in like-new condition and with fewer than 300 miles driven, youre eligible for a full return. Vehicles driven more than 300 miles are still returnable, but with a fee of \$1.00 per additional mile.

The 2025 GMC Sierra 2500HD AT4 delivers a blend of serious work capacity and refined amenities, making it a strong choice for those needing durability and off-road readiness without sacrificing comfort or advanced features.


Price includes: $1000 - Buick & GMC Select Market Incremental Consumer Cash. Exp. 06/30/2025


 

Comfort and Convenience

Air Conditioning
Auto-dimming Door Mirrors
Auto-dimming Rear-View Mirror
Bed View Camera W/2 Trailer Camera Provisions
Driver Vanity Mirror
Front Dual Zone A/C
Inside Rearview Auto-Dimming Rear Camera Mirror
Keyless Open & Start
Manual Tilt-Wheel/Telescoping Steering Column
Occupant Sensing Airbag
Passenger Vanity Mirror
Perforated Leather-Appointed Front Seat Trim
Power Sunroof
Remote Keyless Entry
Remote Vehicle Starter System
Tilt Steering Wheel
Universal Home Remote
 

Entertainment

7 Speakers
AM/FM Radio: SiriusXM With 360L
Bose Premium 7-Speaker Sound System
Radio: AM/FM W/Premium GMC Infotainment System
Steering Wheel Audio Controls
Steering Wheel Mounted Audio Controls
 

Exterior

10-Way Power Driver Seat Adjuster W/Lumbar
10-Way Power Passenger Seat Adjuster W/Lumbar
4-Wheel Disc Brakes
Alloy Wheels
Auto High-beam Headlights
Bumpers: Body-color
Deep-Tinted Glass
Delay-off Headlights
Electric Rear-Window Defogger
Engine Block Heater
Front Anti-roll Bar
Front Fog Lights
Front Rain-Sensing Wipers
Front Reading Lights
Front Wheel Independent Suspension
Fully Automatic Headlights
Gloss Black Header Grille & Grille Insert Bars
Gooseneck/5th Wheel Prep Package
Heated Steering Wheel
LED Cargo Area Lighting
LED Smoked Amber Roof Marker Lamps
Low Tire Pressure Warning
Power Front Passenger Windows W/Express Up/Down
Power Sliding Rear Window W/Defogger
Power Windows
Rain Sensing Wipers
Rear Reading Lights
Rear Step Bumper
Rear Wheelhouse Liners
Rear Window Defroster
Telescoping Steering Wheel
Variably Intermittent Wipers
Wheels: 20" High Gloss Black 8 Spokes Aluminum
Winter Grille Cover
 

Interior

Front Bucket Seats
Front Center Armrest
Heated 2nd Row Outboard Seats
Heated Driver & Front Outboard Passenger Seats
Heated Front Seats
Heated Rear Seats
Memory Seat
Multicolor 15" Diagonal Head-Up Display
Outside Temperature Display
Power Driver Seat
Power Passenger Seat
Rear Seat Center Armrest
Safety Alert Seat
Split Folding Rear Seat
Trip Computer
Ventilated Driver & Front Passenger Seats
Ventilated Front Seats
 

Mechanical

120-Volt Bed Mounted Power Outlet
120-Volt Instrument Panel Power Outlet
2-Speed Active Transfer Case
Buckle To Drive
Driver Door Bin
Driver Memory
Heavy-Duty 80 Amp Battery
IntelliBeam Automatic High Beam On/Off
Off-Road Suspension
Power Door Mirrors
Power Steering
Power-Retractable Black Assist Steps
 

Safety

ABS Brakes
Brake Assist
Dual Front Impact Airbags
Dual Front Side Impact Airbags
Electronic Stability Control
Exhaust Brake
Overhead Airbag
Traction Control
Ultrasonic Front & Rear Park Assist
 

Other

2 Charge-Only Rear USB Ports
2 Charge/Data USB Ports Inside Center Console
2 USB Ports
220-Amp Alternator
3.42 Axle Ratio
3.73 Rear Axle Ratio
AT4 Preferred Package
AT4 Premium Plus Package
Apple CarPlay/Android Auto
Automatic Emergency Braking
Automatic Temperature Control
Compass
Emergency Communication System: OnStar
Floor-Mounted Center Console
Following Distance Indicator
Forward Collision Alert
Front License Plate Kit
Front Pedestrian Braking
Front Prem Floor Liners W/Removable Carpet Insert
HD Surround Vision
Heated Door Mirrors
Hill Descent Control
Hitch Guidance W/Hitch View
Illuminated Entry
In-Vehicle Trailering System App
Lane Departure Warning System
Off-Road High Clearance Step (LPO)
OnStar Services Capable
Overhead Console
Panic Alarm
Passenger Door Bin
Pickup Box
Preferred Equipment Group 4SB
Push Button Start
Rear Cross Traffic Alert
Rear Prem Floor Liners W/Removable Carpet Insert
Security System
SiriusXM W/360L Trial Subscription
Speed Control
Speed-sensing Steering
Spray-On Pickup Bedliner W/GMC Logo
Tachometer
Technology Package
Trailer Cam Provisions & Trailer Viewing Software
Trailer Side Blind Zone Alert
Turn Signal Indicator Mirrors
Unauthorized Entry Theft-Deterrent System
Voltmeter
Wireless Charging
Wireless Phone Projection
X31 Off-Road Package

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* Note: We always do our best to provide the most accurate and up-to-date information, however, we cannot be held responsible for anything that is listed incorrectly. For new vehicles, price listed does not include accessories. Please contact the dealer/seller for official pricing and vehicle information, and with any questions that you might have. Displayed prices generally do not include taxes and other fees.