2025 GMC Sierra 2500 AT4

Specifications, live market data, colors, and factory features.

358 for sale right now

$56,200 – $89,990

View Listings

Specifications

401

Horsepower

464

lb-ft Torque

Seats

$71k

Base MSRP

Performance

Engine: 6.6L V-Shaped L5P
Horsepower: 401 hp
Torque: 464 lb-ft
Transmission: 10-Speed Automatic
Drivetrain: 4WD

Fuel & Efficiency

Fuel: Diesel
MPG City: 0 mpg
MPG Highway: 0 mpg
Fuel Tank: 36 gal

Dimensions

Length: 266.8″
Width: 81.9″
Height: 79.7″
Wheelbase: 172″
Curb Weight: 7,579 lbs

Body & Practicality

Body Style: Truck
Doors: 4
Seating: 5
Base MSRP: $71,200

Colors

Factory colors on 2025 GMC Sierra 2500 AT4s for sale now.

Exterior

Summit White(white)75
Onyx Black(black)43
Sterling Metallic(silver)15
Thunderstorm Gray(gray)10
Gray9
Volcanic Red Tintcoat(red)7
Sterling(silver)7
Titanium Rush Metallic(silver)5
Black3
Volcanic Red(red)2

Interior

Jet Black w/Kalahari Accents(black)101
Jet Black(black)52
Jet Black With Kalahari Accents(black)14
Jet Black with Kalahari accents(black)6
Jet Black With Kalahari Accents, Perforated Front Leather Seat T(black)1
Alpine Umber(brown)1
Jet Black with Kalahari Accents(black)1
Black1

Live Market Data

Computed from active 2025 GMC Sierra 2500 AT4 listings nationwide, updated continuously.

For sale now358

Median price$69,949

Average price$70,141

Price range$56,200 – $89,990

Median vs. MSRP−$1,251

Avg. days on market52

Avg. mileage28,754 mi

New / Used2 / 356

Price Distribution

Price vs. Mileage

Latest AT4 Listings

The newest 2025 GMC Sierra 2500 AT4s on the market.

View all 358 →

Used 2025 GMC Sierra 2500

AT4

$72,061

19,141 mi

Est. $1,040/mo*

4 days at this dealer

WhiteBlack

Warsaw Buick GMC Chrysler Dodge Jeep RAM

Warsaw, IN

Used 2025 GMC Sierra 2500

AT4

$68,750

16,507 mi

Est. $993/mo*

4 days at this dealer

Onyx BlackBlack

City Auto - Huntsville

Madison, AL

Used 2025 GMC Sierra 2500

AT4

$71,995

15,042 mi

Est. $1,039/mo*

5 days at this dealer

RedBlack

Orleans Ford

Medina, NY

Used 2025 GMC Sierra 2500

AT4

$74,922

19,999 mi

Est. $1,081/mo*

5 days at this dealer

GrayJet Black

Ford of Long Beach

Long Beach, CA

Certified 2025 GMC Sierra 2500

AT4

$72,688

10,378 mi

Est. $1,049/mo*

5 days at this dealer

SilverBlack

Corwin Ford Reno

Reno, NV

Used 2025 GMC Sierra 2500

AT4

$65,950

75,432 mi

Est. $953/mo*

7 days at this dealer

Black

Ed Morse Chevrolet Buick GMC

Rolla, MO

Used 2025 GMC Sierra 2500

AT4

$56,200

35,919 mi

Est. $814/mo*

7 days at this dealer

RedBlack

reCar

Benton, MO

Used 2025 GMC Sierra 2500

AT4

$67,389

16,576 mi

Est. $974/mo*

7 days at this dealer

BlackBlack

Jim Schmidt Chevrolet of Delphos

Delphos, OH

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The median 2025 GMC Sierra 2500 AT4 lists for $69,949 today.

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Factory Features

Standard equipment from the window sticker, reviewed for accuracy.

Comfort & Convenience

Keyless Open and Start with remote keyless entry
Push-button start
Remote vehicle starter system
Power door locks
Power front windows with driver and passenger express up/down
Power rear windows with express down
Wireless charging
Instrument-panel 120-volt power outlet
Bed-mounted 120-volt power outlet
USB ports: two charge/data in center console; two on console; rear charge-only USB ports
12.3-inch diagonal enhanced multicolor reconfigurable Driver Information Center
13.4-inch diagonal multicolor premium information touch display

Driver Assistance

Adaptive Cruise Control (standard on AT4 for 2025)
HD Surround Vision with front camera washer
Bed View Camera (CHMSL) with two trailer camera provisions
Trailer camera provisions and trailer viewing software
Front and Rear Park Assist (ultrasonic)
Trailer Side Blind Zone Alert
Rear Cross Traffic Alert
Hitch Guidance with Hitch View (image adjustment, pan/zoom/tilt)
Hitch Guidance dynamic single-line alignment aid
Safety Alert Seat
Lane Departure Warning
Following Distance Indicator
Forward Collision Alert
Automatic Emergency Braking
Front Pedestrian Braking

Entertainment

13.4-inch diagonal Premium GMC Infotainment System with Google built-in (navigation and voice assistance apps), multi-touch color display, AM/FM
Wireless Apple CarPlay and wireless Android Auto compatibility
Bluetooth phone connectivity and streaming audio
Bose premium 7-speaker sound system with Richbass woofer
SiriusXM with 360L (trial subscription)
Wi-Fi hotspot capable

Exterior

Exclusive 20-inch high-gloss black aluminum wheels (8-spoke)
LT275/65R20 all-terrain blackwall tires
LT275/70R18 all-terrain blackwall spare tire
Keyed tire carrier lock (same key as ignition/doors)
AT4 grille treatment
Animated LED projector headlamps with LED turn signals and LED signature daytime running lamps
IntelliBeam automatic high-beam headlamps
Animated LED signature taillamps (tail/stop/turn/reverse)
LED fog lamps
Body-color front bumper (body-color lower)
Body-color rear bumper with CornerStep
Black beltline moldings
Body-color door handles
High-gloss black mirror caps
Power-adjustable vertical trailering mirrors with heated and auto-dimming upper glass, lower convex mirrors, turn-signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, and power fold/extend
Deep-tinted glass
Front rain-sensing wipers
GMC MultiPro six-function tailgate with power lock/release and hitch-area light
Tailgate and bed-rail protection caps
Spray-on bedliner with GMC logo
LED cargo-area bed lighting (switch bank and key fob)
Cab-mounted cargo lamps integrated with center high-mount stop lamp
Fixed cargo tie-downs (500 lbs per corner)
Black integrated bed step (driver and passenger side forward bed)
Rear wheelhouse liners

Interior

Exclusive Jet Black interior with Kalahari accents
Perforated front leather seating surfaces
Front bucket seats with floor-mounted center console
10-way power driver seat with power lumbar
10-way power front passenger seat with power lumbar
Heated driver and front outboard passenger seats
Ventilated driver and front passenger seats
Heated second-row outboard seats
Driver memory (power driver seat and outside mirrors)
Up-level rear 60/40 folding bench with seatback storage, center fold-out armrest with cupholders, and full-width under-seat storage
Wrapped heated steering wheel with audio controls
Manual tilt and telescoping steering column
Dual-zone automatic climate control
Rear air vents
Rear-window electric defogger
Auto-dimming inside rearview mirror
Color-keyed carpeting
Premium floor liners with removable carpet inserts (front and rear)
Center console with cup holders, phone storage, power-cord management, and hanging file capability
Assist handles (front A-pillar and rear B-pillar)
Compass (instrument cluster) and exterior temperature display

Mechanical & Performance

6.6L V8 gas engine (401 hp / 464 lb-ft) — standard powertrain; Duramax diesel optional
Allison 10-speed automatic transmission
Four-wheel drive (AT4 is 4WD only)
Two-speed active electronic AutoTrac transfer case with push-button control
Auto-locking rear differential
3.73 rear axle ratio (standard gas configuration)
X31 Off-Road Package: off-road suspension with twin-tube Rancho shocks, skid plates, and Hill Descent Control
Skid plates protecting oil pan, front axle, and transfer case
Digital Variable Steering Assist
4-wheel antilock disc brakes with Duralife rotors
Brake lining wear indicator
Heavy-duty air filter and air filtration monitoring
External engine oil cooler
Auxiliary external transmission oil cooler
Heavy-duty 720 cold-cranking amp / 80 Amp-hr battery with rundown protection and retained accessory power
170-amp alternator
Integrated trailer brake controller
Trailering Package: trailer hitch, 7-pin and 4-pin connectors, Hitch Guidance
ProGrade Trailering System: Hitch Guidance with Hitch View and In-Vehicle Trailering App
In-Vehicle Trailering App (checklist, maintenance reminders, security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics, trailer tire pressure monitor system module)
Capless fuel fill
Fully boxed frame with hydroformed front section and stamped rear section
GVWR 10,850 lbs (standard gas AT4 configuration)
Red recovery hooks
Pickup bed with integrated bed assist step

Safety & Security

Sierra HD Pro Safety: Forward Collision Alert, Following Distance Indicator, Front Pedestrian Braking, IntelliBeam, Lane Departure Warning, Buckle to Drive, Automatic Emergency Braking
StabiliTrak electronic stability control with Proactive Roll Avoidance, traction control, electronic trailer sway control, and hill-start assist
Dual-stage frontal airbags (driver and front outboard passenger)
Seat-mounted side-impact airbags (driver and front outboard passenger)
Head-curtain airbags (front and rear outboard)
Passenger Sensing System for front outboard passenger frontal airbag
Tire Pressure Monitoring System with auto-learn and Tire Fill Alert
Theft-deterrent system (unauthorized entry)
Teen Driver configurable feature with in-vehicle report card
Rear Seat Reminder
Rear Seat Belt Indicator
Seat-belt adjustable guide loops (front row)
Trailering Information Label
OnStar Basics / OnStar services capable

Warranty

Basic limited warranty: 3 years / 36,000 miles
Powertrain limited warranty: 5 years / 60,000 miles
Corrosion warranty: 3 years / 36,000 miles