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2026 GMC Sierra 2500HD Crew Cab Standard Box 4-Wheel Drive AT4 4SB Preferred Equipment Group 4x4
Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
Black
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
T73041
Fuel Type
Diesel
Trim Details
Crew Cab Standard Box 4-Wheel Drive AT4
Description
Off-Road Package, Adaptive Cruise Control, Wireless Charging, 360 Camera, Park Assist, Cooled Seats, Heated Steering Wheel, Remote Start, MultiPro Tailgate
This immensely capable 2026 GMC 2500HD has everything you're looking for in a heavy-duty truck.
This 2026 GMC 2500HD is highly configurable work truck that can haul a colossal amount of weight thanks to its potent drivetrain. This truck also offers amazing interior features that nestle occupants in comfort and luxury, with a great selection of tech features. For heavy-duty activities and even long-haul trips, the 2500HD is all the truck you'll ever need.
This Onyx Black sought after diesel Crew Cab 4X4 pickup has an Automatic transmission and is powered by a 6.6L V8 32V DDI OHV Turbo Diesel engine.
Our Sierra 2500HD's trim level is AT4. This trim rewards you with the X31 Off-Road Package built for rugged adventures with skid plates, Hill Descent Control, off-road suspension, and Rancho twin-tube shocks, plus red recovery hooks for added capability. It comes equipped with the Sierra HD Pro Safety suite, featuring Automatic Emergency Braking, Lane Departure Warning, Forward Collision Alert, and more, alongside advanced trailering technology like Hitch Guidance with Hitch View, the ProGrade Trailering System, and a spray-on bedliner with MultiPro Tailgate. Inside, you’ll find heated and ventilated leather seats, a Bose premium audio system, a 13.4" infotainment display with Google built-in, wireless Apple CarPlay/Android Auto, and wireless charging, while Adaptive Cruise Control, HD Surround Vision, and Trailer Side Blind Zone Alert add confidence on every drive. Rugged 20" black aluminum wheels, LED animated headlamps and taillamps, and body-colour accents complete the bold, off-road-ready design.
0% financing for 36 months. 3.99% financing for 84 months.
Buy this vehicle now for the lowest weekly payment of $379.03 with $0 down for 84 months @ 3.99% APR O.A.C. ( Plus applicable taxes - Plus applicable fees ). Incentives expire 2026-06-30. See dealer for details.
Prices include all fees except HST and license. PLEASE NOTE: Fee specifications and availability are subject to change without notice. Contact dealer for most current information. *Fuel consumption ratings and estimates based on GM testing in accordance with Government of Canada approved test methods. Refer to vehicles.nrcan.gc.ca for details.Your actual fuel consumption may vary. While we make every effort to ensure the data listed here is correct, there may be instances where some of the pricing, options or vehicle features may be listed incorrectly as we get data from multiple data sources. Please confirm the details of this vehicle with the dealer to ensure its accuracy. Dealer cannot be held liable for data that is listed incorrectly. Vehicles Displayed in any stock photos are not the actual vehicle and do not represent the actual vehicle. Please see dealer for more details
Come by and check out our fleet of 30+ used cars and trucks and 300+ new cars and trucks for sale in Cobourg. o~o
This immensely capable 2026 GMC 2500HD has everything you're looking for in a heavy-duty truck.
This 2026 GMC 2500HD is highly configurable work truck that can haul a colossal amount of weight thanks to its potent drivetrain. This truck also offers amazing interior features that nestle occupants in comfort and luxury, with a great selection of tech features. For heavy-duty activities and even long-haul trips, the 2500HD is all the truck you'll ever need.
This Onyx Black sought after diesel Crew Cab 4X4 pickup has an Automatic transmission and is powered by a 6.6L V8 32V DDI OHV Turbo Diesel engine.
Our Sierra 2500HD's trim level is AT4. This trim rewards you with the X31 Off-Road Package built for rugged adventures with skid plates, Hill Descent Control, off-road suspension, and Rancho twin-tube shocks, plus red recovery hooks for added capability. It comes equipped with the Sierra HD Pro Safety suite, featuring Automatic Emergency Braking, Lane Departure Warning, Forward Collision Alert, and more, alongside advanced trailering technology like Hitch Guidance with Hitch View, the ProGrade Trailering System, and a spray-on bedliner with MultiPro Tailgate. Inside, you’ll find heated and ventilated leather seats, a Bose premium audio system, a 13.4" infotainment display with Google built-in, wireless Apple CarPlay/Android Auto, and wireless charging, while Adaptive Cruise Control, HD Surround Vision, and Trailer Side Blind Zone Alert add confidence on every drive. Rugged 20" black aluminum wheels, LED animated headlamps and taillamps, and body-colour accents complete the bold, off-road-ready design.
0% financing for 36 months. 3.99% financing for 84 months.
Buy this vehicle now for the lowest weekly payment of $379.03 with $0 down for 84 months @ 3.99% APR O.A.C. ( Plus applicable taxes - Plus applicable fees ). Incentives expire 2026-06-30. See dealer for details.
Prices include all fees except HST and license. PLEASE NOTE: Fee specifications and availability are subject to change without notice. Contact dealer for most current information. *Fuel consumption ratings and estimates based on GM testing in accordance with Government of Canada approved test methods. Refer to vehicles.nrcan.gc.ca for details.Your actual fuel consumption may vary. While we make every effort to ensure the data listed here is correct, there may be instances where some of the pricing, options or vehicle features may be listed incorrectly as we get data from multiple data sources. Please confirm the details of this vehicle with the dealer to ensure its accuracy. Dealer cannot be held liable for data that is listed incorrectly. Vehicles Displayed in any stock photos are not the actual vehicle and do not represent the actual vehicle. Please see dealer for more details
Come by and check out our fleet of 30+ used cars and trucks and 300+ new cars and trucks for sale in Cobourg. o~o
Packages & Options
Standard Equipment
Technical Specifications
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AM/FM Stereo
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Auxiliary Audio Input
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Bluetooth Connection
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MP3 Player
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Navigation System
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Smart Device Integration
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Requires Subscription
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Satellite Radio
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Premium Sound System
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Terrain
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Tires - Rear All-Terrain
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Conventional Spare Tire
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Bumper, front, body-colour lower
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Bumper, rear body-colour with bumper CornerSteps
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Bed Liner
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Bed Step, Black integrated on forward portion of bed on driver and passenger side
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CornerStep, rear bumper
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Mouldings, beltline, Black
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Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
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Daytime Running Lights
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Automatic Highbeams
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Fog Lamps
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Lamps, cargo area cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
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LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
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Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
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Heated Mirrors
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Integrated Turn Signal Mirrors
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Power Folding Mirrors
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Power Mirror(s)
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Mirror caps, high gloss Black
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Privacy Glass
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Intermittent Wipers
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Rain Sensing Wipers
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Variable Speed Intermittent Wipers
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Integrated Tailgate Step
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Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
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Bucket Seats
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Leather Seats
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Pass-Through Rear Seat
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Rear Bench Seat
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Driver Adjustable Lumbar
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Power Driver Seat
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Passenger Adjustable Lumbar
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Power Passenger Seat
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Heated Front Seat(s)
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Cooled Front Seat(s)
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Heated Rear Seat(s)
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Mirror Memory
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Seat Memory
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Floor covering, colour-keyed carpeting
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Floor Mats
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Steering wheel, wrapped
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Heated Steering Wheel
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Steering Wheel Audio Controls
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Adjustable Steering Wheel
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Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
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Rear Seat Reminder
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GMC Premium information Display- 13.4" diagonal Multicolour touch screen
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Exterior Temperature Display, located in radio display
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Compass, located in instrument cluster
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Power Windows
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Power Door Locks
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Keyless Entry
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Keyless Start
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Remote Engine Start
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Adaptive Cruise Control
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Cruise Control
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Wireless Charging
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Security System
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Auxiliary Audio Input
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MP3 Player
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
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A/C
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Climate Control
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Multi-Zone A/C
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Rear Defrost
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Auto-Dimming Rearview Mirror
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Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
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8 Cylinder Engine
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Gasoline Fuel
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10-Speed A/T
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A/T
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Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
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Running Boards/Side Steps
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GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)
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Keyless Start
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Hill Descent Control
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Transfer case, two-speed active, electronic Autotrac with push button control
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Locking/Limited Slip Differential
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Four Wheel Drive
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Cooling, external engine oil cooler
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Cooling, auxiliary external transmission oil cooler
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Air filter, heavy-duty
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Air filtration monitoring
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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.)
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Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
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Trailer brake controller, integrated
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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.)
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Tow Hooks
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Skid Plates protect the oil pan, front axle and transfer case
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Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
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Suspension, Off-Road includes twin-tube shocks
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Power Steering
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4-Wheel Disc Brakes
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ABS
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Brake lining wear indicator
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Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
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X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
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Automatic Highbeams
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Front Collision Mitigation
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Front Collision Warning
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Lane Departure Warning
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Tow Hitch
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ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
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Front Collision Mitigation
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Front Collision Warning
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Stability Control
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Traction Control
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Daytime Running Lights
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Driver Air Bag
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Front Head Air Bag
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Front Side Air Bag
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Passenger Air Bag
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Passenger Air Bag Sensor
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Rear Head Air Bag
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Requires Subscription
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Telematics
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Rear Parking Aid
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Aerial View Display System
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Back-Up Camera
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Trailer Camera Provisions and trailer viewing software
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Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
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Lane Departure Warning
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Rear Seat Belt Indicator
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Cross-Traffic Alert
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Blind Spot Monitor
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Seat Belt Adjustable Guide Loops, front row only
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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.)
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Safety Alert Seat
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Driver Restriction Features
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Tire Pressure Monitor
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Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
No matches were found.
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Vehicle NameGMC Sierra 2500HD
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Body StyleCrew Cab Pickup
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Body CodeE63
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DrivetrainFour Wheel Drive
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Trans Order CodeMGM
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Trans Type10
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Trans Description Cont.Automatic
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First Gear Ratio (:1)4.54
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Second Gear Ratio (:1)2.87
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Third Gear Ratio (:1)2.06
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Fourth Gear Ratio (:1)1.72
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Fifth Gear Ratio (:1)1.48
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Sixth Gear Ratio (:1)1.26
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Seventh Gear Ratio (:1)1.00
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Eighth Gear Ratio (:1)0.85
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Ninth Gear Ratio (:1)0.69
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Tenth Gear Ratio (:1)0.63
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Reverse Ratio (:1)4.54
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Transfer Case Gear Ratio (:1), High1
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Passenger Capacity5
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Front Head Room (in)43.03
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Front Leg Room (in)44.53
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Front Shoulder Room (in)66.02
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Front Hip Room (in)61.18
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Second Head Room (in)40.12
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Second Leg Room (in)43.4
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Second Shoulder Room (in)65.3
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Second Hip Room (in)60.24
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Gross Axle Wt Rating - Front (lbs)5600
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Curb Weight - Front (lbs)4013
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Curb Weight - Rear (lbs)2812
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Gross Vehicle Weight Rating Cap (lbs)11350
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Gross Combined Wt Rating (lbs)27500
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Dead Weight Hitch - Max Trailer Wt. (lbs)5000
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Dead Weight Hitch - Max Tongue Wt. (lbs)500
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Wt Distributing Hitch - Max Trailer Wt. (lbs)18500
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Wt Distributing Hitch - Max Tongue Wt. (lbs)1850
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)17300
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)4325
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Maximum Trailering Capacity (lbs)20000
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Engine Order CodeL5P
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Engine TypeTurbocharged Diesel V8
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Displacement6.6L
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Fuel SystemDirect Injection
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SAE Net Horsepower @ RPM470 @ 2800
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SAE Net Torque @ RPM975 @ 1600
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Engine Oil CoolerYes
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Cold Cranking Amps @ 0° F (Primary)720
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Maximum Alternator Capacity (amps)220
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Frame TypeBox Ladder
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Suspension Type - FrontShort/Long Arm w/Torsion Bar
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Suspension Type - Rear2-Stage Multi-Leaf
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Axle Ratio (:1) - Front3.42
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Axle Ratio (:1) - Rear3.42
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Shock Absorber Diameter - Front (mm)51
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Shock Absorber Diameter - Rear (mm)51
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Stabilizer Bar Diameter - Front (in)1.38
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Front Tire Order CodeQF9
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Rear Tire Order CodeQF9
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Spare Tire Order CodeZYG
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Front Tire SizeLT275/65R20
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Rear Tire SizeLT275/65R20
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Spare Tire SizeLT275/70R18
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Front Wheel Size (in)20
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Rear Wheel Size (in)20
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Spare Wheel Size (in)18
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Steering TypePwr Recirculating Ball
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Turning Diameter - Curb to Curb (ft)52.7
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Brake TypePwr
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Brake ABS System4-Wheel
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Disc - FrontYes
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Disc - RearYes
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Front Brake Rotor Diam x Thickness (in)14 x 1.6
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Rear Brake Rotor Diam x Thickness (in)14.1 x 1.3
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Fuel Tank Capacity, Approx (L)136
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Wheelbase (in)159
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Length, Overall (in)250.75
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Width, Max w/o mirrors (in)81.85
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Height, Overall (in)79.82
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Cab to Axle (in)42.17
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Ground Clearance, Front (in)10.12
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Ground Clearance, Rear (in)10.12
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Cargo Box Length @ Floor (in)82.2
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)51.85
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Cargo Box (Area) Height (in)21
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Cargo Volume (ft³)69.5
No matches were found.
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* Every reasonable effort is made to ensure the accuracy of the information listed above. Vehicle pricing, incentives, options (including standard equipment), and technical specifications listed is for the 2026 GMC Sierra 2500HD AT4 may not match the exact vehicle displayed. Please confirm the accuracy of this information with a sales representative.
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