Used 2025 GMC Sierra 2500HD AT4X Truck For Sale Montgomery AL

Stock: STK364390VIN: 1GT4UZEY3SF364390

2025 Summit White GMC Sierra 2500HD AT4X 4X4 Truck

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Stock: STK364390 VIN: 1GT4UZEY3SF364390

Used 2025 GMC Sierra 2500HD AT4X Truck For Sale Montgomery AL

$84,000

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Up Front® Price:

$84,000

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Located at Mullinax Buick GMC

833 Eastern Blvd Montgomery, AL 36117

Overview

STK364390: Stock

1GT4UZEY3SF364390: VIN

14,500: Miles

Truck: Body

4X4: Drivetrain

Summit White: Exterior

Obsidian Rush: Interior

159: Wheelbase

Duramax 6.6L V8 Turbodiesel: Engine

Diesel: Fuel

10-Speed Automatic: Transmission

4: Doors

Crew Cab: Cab Type

Description

Clean CARFAX. 10-Speed Automatic, 4WD, Obsidian Rush Leather, 12 Speakers, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 16-Way Power Driver Seat Adjuster w/Lumbar, 16-Way Power Passenger Seat Adjuster w/Lumbar, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2 USB Ports, 2-Speed Active Transfer Case, 3.42 Axle Ratio, 3.73 Rear Axle Ratio, 4-Wheel Disc Brakes, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium Series 12-Speaker System, Brake assist, Buckle to Drive, Compass, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual 220-Amps Primary/170-Amps Aux Alternators, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electronic Stability Control, Emergency communication system: OnStar, Engine Block Heater, Exhaust Brake, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Pedestrian Braking, Front Prem Floor Liners w/Removable Carpet Insert, Front Rain-Sensing Wipers, Front reading lights, Front wheel independent suspension, Full Grain Leather Seat Trim, Fully automatic headlights, Garage door transmitter, Gloss Black Door Handles, Gloss Black Header Grille & Grille Insert Bars, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Heads-Up Display, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hill Descent Control, Hitch Guidance w/Hitch View, Hitch Package (LPO), Illuminated entry, In-Vehicle Trailering System App, Inside Rearview Auto-Dimming Rear Camera Mirror, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Departure Warning System, Leather steering wheel, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Multicolor 15" Diagonal Head-Up Display, Occupant sensing airbag, Off-Road Suspension, OnStar Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Pickup Box, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power moonroof, Power passenger seat, Power Sliding Rear Window w/Defogger, Power steering, Power Sunroof, Power windows, Preferred Equipment Group 4SG, Push Button Start, Radio: AM/FM w/Premium GMC Infotainment System, Rain sensing wipers, Rear Cross Traffic Alert, Rear Prem Floor Liners w/Removable Carpet Insert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, Security system, SiriusXM w/360L Trial Subscription, Speed control, Speed-sensing steering, Split folding rear seat, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trailer Cam Provisions & Trailer Viewing Software, Trailer Side Blind Zone Alert, Trailer Tire Pressure Monitor Sensors, Trip computer, Turn signal indicator mirrors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Variably intermittent wipers, Ventilated Driver & Front Passenger Seats, Ventilated front seats, Voltmeter, Wheels: 18" Machined Alum w/High Gloss Blk Accents, Winter Grille Cover, Wireless Charging, Wireless Phone Projection, 10-Speed Automatic, 4W

Details

Model Overview

The Sierra HD comes in one of several different body styles with long and short bed options. However, despite this complexity there are only two available engines, both V8 units displacing 6.6 liters. The gasoline option makes 401 horsepower and 464 lb-ft of torque. The more expensive diesel engine is aided by a turbocharger and makes 470 horsepower and a massive 975 lb-ft of torque. Unlike the gasoline engine, the diesel is mated to a 10-speed automatic to handle all that torque. When properly equipped, a Sierra HD 3500 should be able to tow up to 35,000lbs with a 5th wheel attachment, or 20,000 lbs with a traditional trailer hitch, thanks in large part to the massive torque produced by its diesel V8. Sierra HD models are available with either rear-wheel drive of selectable four-wheel drive.

The Sierra HD comes in either 2500 form or 3500 form with 3500 versions offering a bit more towing capacity and payload because they can be optioned with a "dually" setup, giving the truck an extra pair of wheels on the rear axle. Both trucks can be optioned with a regular cab, a double cab featuring four conventional doors, or a crew cab with even bigger rear seats. Truck beds are either 6'9" or 8' depending on configuration, though the only restriction to bed size is in the regular cab version, which always comes with the longer bed.

In addition to copious options for the basic architecture of the truck, Sierra buyers are also offered plenty of choices when it comes to the tech in their new vehicle. GMC's ProGrade Trailering system features fifteen camera views to help keep an eye on things behind the truck, even counting a class exclusive transparent trailer view among its features. The available heads up display on the Sierra HD is massive, measuring 15-inches across, while the rear-view mirror can be switched between displaying an actual mirror and the view from the rearward facing camera. GM claims their MultiPro tailgate is the world's first six-function tailgate. In practice that means it's easy to load things into and out of the back of the truck, while also providing a ton of utility options for carrying loads with the tailgate dropped. It also has a built-in step to make it easier to climb in and out of the bed of the truck.

Concentrating on off-roading capabilities, 4AT models come standard with four-wheel drive along with a more off-road biased suspension setup that includes Rancho Shocks. Other standard features on the 4AT include skid plates, an Eaton locking differential, Michelin all-terrain tires, a heads-up display, GMC's HD Surround Vision camera system, hill descent control and an off road mode.

Most buyers though, will probably opt for the Denali version of the Sierra HD. Available in both 2500 and 3500 forms, Denali versions of the Sierra HD come standard with the bigger crew cab, body colored front and rear bumpers, LED lights in the cargo bed, tinted glass, LED headlights, daytime running, front fog and taillights, powered external mirrors, a MultiPro tailgate, UltraSonic front and rear parking sensors, Lane Departure Warning, Lane Change Alert with Automatic Braking, Rear Cross-Traffic Alert, Following Distance Indicator and Hill Descent Control (HDC).

The Denali Interior features include, 4G LTE Wi-Fi, Bluetooth and Apple CarPlay\Android Auto connectivity, a 13.4-inch infotainment screen and a 12.3-inch digital instrument cluster, a 7-speaker sound system, dual-zone climate control, heated front and rear seats, vented front seats, a heated steering wheel, keyless start and wireless device charging.

Model Strengths

Towing Capacity

Interior Space

Well Thought Out Technology

Available Off-road Equipment

Powerful Engine Options

Upscale Denali Edition

Model Changes

The GMC Sierra 2500HD and 3500HD roll into 2025 with minimal changes.

Model Value

The GMC Sierra HD competes with the RAM 2500 and 3500 as well as the Ford F-250 and F-350. The Sierra costs a bit more than its competitors, but it comes with a bigger and more powerful engine than the Ford, while the Dodge is significantly cheaper for the stripped down 'Tradesman' trim level. In addition to its robustness, the Sierra comes with a ton of tech to make trailering easier, including an available camera system that utilizes no fewer than fifteen cameras. Meanwhile, those who want all that functionality with a good dose of comfort, will find no better truck than the upscale Denali versions of the Sierra HD.

Features

Preferred Equipment Group 4SG

3.73 Rear Axle Ratio

3.42 Axle Ratio

Wheels: 18" Machined Alum w/High Gloss Blk Accents

Full Grain Leather Seat Trim

16-Way Power Driver Seat Adjuster w/Lumbar

Radio: AM/FM w/Premium GMC Infotainment System

Electric Rear-Window Defogger

Front Prem Floor Liners w/Removable Carpet Insert

120-Volt Instrument Panel Power Outlet

2 Charge-Only Rear USB Ports

Power Sunroof

Spray-On Pickup Bedliner w/GMC Logo

Deep-Tinted Glass

LED Smoked Amber Roof Marker Lamps

LED Cargo Area Lighting

Pickup Box

Rear Wheelhouse Liners

Gooseneck/5th Wheel Prep Package

Hitch Package (LPO)

Trailer Tire Pressure Monitor Sensors

Dual 220-Amps Primary/170-Amps Aux Alternators

Engine Block Heater

Off-Road Suspension

2-Speed Active Transfer Case

Inside Rearview Auto-Dimming Rear Camera Mirror

SiriusXM w/360L Trial Subscription

Driver Memory

Power Sliding Rear Window w/Defogger

16-Way Power Passenger Seat Adjuster w/Lumbar

Power Front Passenger Windows w/Express Up/Down

Keyless Open & Start

Winter Grille Cover

Rear Prem Floor Liners w/Removable Carpet Insert

Push Button Start

Remote Vehicle Starter System

Front Rain-Sensing Wipers

Floor-Mounted Center Console

Gloss Black Door Handles

Gloss Black Header Grille & Grille Insert Bars

Safety Alert Seat

Hill Descent Control

Exhaust Brake

Wireless Charging

Heated Driver & Front Outboard Passenger Seats

Heated 2nd Row Outboard Seats

120-Volt Bed Mounted Power Outlet

Ventilated Driver & Front Passenger Seats

Heavy-Duty 80 Amp Battery

Manual Tilt-Wheel/Telescoping Steering Column

Sierra HD Pro Safety

Wireless Phone Projection

ProGrade Trailering System

Hitch Guidance w/Hitch View

Buckle to Drive

IntelliBeam Automatic High Beam On/Off

Trailer Cam Provisions & Trailer Viewing Software

2 Charge/Data USB Ports Inside Center Console

2 USB Ports

Ultrasonic Front & Rear Park Assist

OnStar Services Capable

Following Distance Indicator

In-Vehicle Trailering System App

Forward Collision Alert

Rear Cross Traffic Alert

Lane Departure Warning System

Universal Home Remote

Automatic Emergency Braking

Steering Wheel Audio Controls

Front Pedestrian Braking

Trailer Side Blind Zone Alert

Bose Premium Series 12-Speaker System

Unauthorized Entry Theft-Deterrent System

HD Surround Vision

Multicolor 15" Diagonal Head-Up Display

Bed View Camera w/2 Trailer Camera Provisions

12 Speakers

Apple CarPlay/Android Auto

Emergency communication system: OnStar

AM/FM radio: SiriusXM with 360L

Auto High-beam Headlights

Compass

Heads-Up Display

Auto-dimming Rear-View mirror

Ventilated front seats

Variably intermittent wipers

Turn signal indicator mirrors

Trip computer

Traction control

Tilt steering wheel

Telescoping steering wheel

Steering wheel mounted audio controls

Split folding rear seat

Speed-sensing steering

Speed control

Security system

Remote keyless entry

Rear window defroster

Rear step bumper

Rear seat center armrest

Rear reading lights

Rain sensing wipers

Power windows

Power steering

Power passenger seat

Power moonroof

Power driver seat

Power door mirrors

Passenger vanity mirror

Passenger door bin

Panic alarm

Overhead console

Overhead airbag

Outside temperature display

Occupant sensing airbag

Memory seat

Low tire pressure warning

Leather steering wheel

Illuminated entry

Heated steering wheel

Heated rear seats

Heated front seats

Heated door mirrors

Garage door transmitter

Fully automatic headlights

Front wheel independent suspension

Front reading lights

Front fog lights

Front dual zone A/C

Front anti-roll bar

Dual front side impact airbags

Dual front impact airbags

Driver vanity mirror

Driver door bin

Delay-off headlights

Brake assist

Automatic temperature control

Auto-dimming door mirrors

Alloy wheels

ABS brakes

Voltmeter

Tachometer

Front Center Armrest

Front Bucket Seats

Electronic Stability Control

Air Conditioning

4-Wheel Disc Brakes

Package

ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App

Mechanical

Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)

GVWR, 11,025 lbs. (5001 kg) (Standard on models built after May 7th, 2025) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)

Hill Descent Control

Transfer case, two-speed active, electronic Autotrac with push button control

Differential, driver-selectable full-locking rear, e-locking

Four wheel drive

Cooling, external engine oil cooler

Cooling, auxiliary external transmission oil cooler

Air filter, heavy-duty

Air filtration monitoring

Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)

Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)

Trailer brake controller, integrated

In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)

Skid Plates, front aluminum

Skid Plates, Transfer case, steel

Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section

Suspension, Off-Road Includes, 1.5" suspension lift: front suspension lift composed of: Control Arms, Ball Joints, Knuckles, DSSV Dampers, rear suspension lift composed of spacer block and DSSV Dampers and Half shafts w/ revised joints, 3-stage Leaf springs from 3500

Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue

Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors

Brake lining wear indicator

Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)

Exterior

Tires, LT305/70R18-126/123R, 35" M/T

Tire, spare, LT305/70R18-126/123R, 35" M/T

Wheel, Spare 18" (50.8 cm)

Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door

Sunroof, power

Bumper, front, body-color lower (Bumper color will be High Gloss Black.)

Bumper, rear body-color with bumper CornerSteps (Bumper color will be High Gloss Black.)

Bedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Available with Ship Thru code (TCH), not available with any other Ship Thru code.)

Bed Step, Black integrated on forward portion of bed on driver and passenger side

CornerStep, rear bumper (Not available with (ULV) AT4X AEV Edition.)

Cargo tie downs (12), fixed, rated at 500 lbs per corner

Wheelhouse liners, rear

Moldings, beltline, Black

Grille (Gloss Black header and grille insert bars with Dark Nickel inserts.)

Fog lamps, LED

Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel

LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob

Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps

Lamps, Smoked Amber roof marker, (LED) (Not available with (YF5) California state emissions requirements.)

Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lighting

Mirror caps, high gloss Black

Glass, deep-tinted

Wipers, front rain-sensing

Door handles, body-color (With (ULV) AT4X AEV Edition door handles will be Gloss black.)

Tailgate, GMC MultiPro Tailgate with six functional load/access features NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details

Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light

Tailgate and bed rail protection caps, top

Entertainment

Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)

Interior

Seat, Up-level Rear with Storage Package 60/40 folding bench, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)

Seats, heated second row outboard seats

Driver memory recalls driver "presets" for power driver seat and outside mirrors

Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability

Floor covering, color-keyed carpeting

Steering wheel, leather-wrapped

Steering wheel, heated

Steering wheel audio controls

Steering column, manual Tilt-Wheel and telescoping

Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display

Multicolor 15" Diagonal Head-Up Display

Rear Seat Reminder

GMC Premium information Display- 13.4" diagonal Multicolor touch screen

Exterior Temperature Display, located in radio display

Compass, located in instrument cluster

Remote vehicle starter system

Adaptive Cruise Control

Universal Home Remote

Wireless Charging

Theft-deterrent system, unauthorized entry

Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)

USB ports, (2) charge-only, rear

Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)

Air vents, rear

Air conditioning, dual-zone automatic climate control

Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted

Safety

StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist

Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)

Front and Rear Park Assist, ultrasonic

Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions

Trailer Camera Provisions and trailer viewing software

Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching

Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)

Rear Seat Belt Indicator

Rear Cross Traffic Alert

Trailer Side Blind Zone Alert

Seat Belt Adjustable Guide Loops, front row only

Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety.)

Safety Alert Seat

Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver

Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)

Trailer Tire Pressure Monitor Sensors includes set of 4 sensors. Sensor functionality requires (UET) In-Vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories

Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering

OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (OnStar Basics includes select remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. For MY25 vehicles, OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)

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*Price subject to change. Our new vehicle UpFront Price may require Ford Financing. Price is plus tax and title. Price includes Incentives for Orlando region residents and includes dealer discount. Additional incentives may be available. We never charge a dealer fee. Some new vehicles may be physically located at one of our other locations, please contact dealer for location and transfer details. See dealer for complete details. * While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with Mullinax Ford.

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Used 2025 GMC Sierra 2500HD AT4X Truck For Sale Montgomery AL

Used 2025 GMC Sierra 2500HD AT4X Truck For Sale Montgomery AL

Located at Mullinax Buick GMC