Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
Black
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
18-260092
Fuel Type
Diesel
Trim Details
Crew Cab Standard Box 4-Wheel Drive Denali
Description
2026 GMC Sierra 2500 HD Denali
Luxury Meets Heavy-Duty Power
The 2026 GMC Sierra 2500 HD Denali defines what it means to combine uncompromising strength with premium refinement. Engineered for those who demand more from a heavy-duty truck, it delivers immense capability, cutting-edge technology, and handcrafted luxury — all wrapped in unmistakable Denali design.
Power That Commands Respect
Beneath the hood lies the legendary 6.6L Duramax Turbo-Diesel V8 engine (L5P) producing 470 horsepower and an incredible 975 lb-ft of torque. This powerhouse pairs with an advanced 10-speed automatic transmission (MGM) to deliver seamless torque delivery, whether you’re towing a fifth-wheel trailer or navigating urban streets.
With Exhaust Brake (K40), 220-amp alternator (KW5), and High Idle Control (UF3), the Sierra Denali is engineered to perform — even in the most demanding conditions. The Gooseneck/5th-Wheel Prep Package (Z6A) and 3.42 rear axle ratio (GU6) make it a towing champion, while the Heavy-Duty Front Spring/Camper Package (F60) enhances stability and ride control when fully loaded.
Add in an engine block heater (K05) and winter grille cover (BHP), and this truck is built to conquer every Canadian season.
Bold Design. Signature Denali Presence.
Finished in Onyx Black (GBA), the Sierra Denali commands attention with its massive chrome grille, signature C-shaped LED lighting, and 20-inch Ultra-Bright Machined Aluminum Wheels (Q7F) with chrome inserts and black painted pockets.
Power-retractable assist steps with LED perimeter lighting (BRS) provide both function and finesse, while the available Black Badging Package (RFE) — featuring Black GMC emblems (SFZ) and Black Sierra nameplates (RIK) — adds a custom, stealth-inspired look.
All-Terrain tires (QF9) deliver confident grip across road and trail, while premium touches like chrome mirror caps, Denali badging, and illuminated accents reinforce its position as the most luxurious truck in its class.
First-Class Comfort and Craftsmanship
Inside, the Jet Black Forge perforated leather seating (H2X) wraps the cabin in sophistication. Heated and ventilated front bucket seats (A50) with a full centre console (D07) provide unmatched comfort and control. Premium floor liners with removable carpet inserts (BKF/BKE) protect the cabin while maintaining a polished appearance.
Enjoy the open air with the power sunroof (CF5) and utilize smart storage solutions with the rear underseat lockable storage bin (VBJ). Every inch of this interior is refined, quiet, and built to handle long hauls or short commutes in equal style.
Technology That Redefines Heavy-Duty
The Denali Reserve Package (PEC) equips this model with the Technology Package (CWM), featuring:
15" Multicolour Head-Up Display (UV6) projecting key performance data onto the windshield
Rear Camera Mirror (DRZ) with full camera display
13.4" GMC Premium Infotainment System (IOK) with built-in Google Maps, Google Assistant, and voice-activated navigation
Wireless Apple CarPlay® and Android Auto™ compatibility
Enjoy immersive sound from the Bose® Premium Audio System, and stay seamlessly connected with Bluetooth®, OnStar®, and Wi-Fi® hotspot capability.
Integrated In-Vehicle Trailering App (UET), Trailer Tire Pressure Monitor Sensors (PTT), and Hitch Guidance with Hitch View make towing smarter, safer, and more precise than ever before.
Capability & Utility
The Sierra Denali HD is built to handle every challenge with ease:
11,750 lb GVWR (JGP)
Gooseneck/5th-Wheel Prep Package (Z6A)
Exhaust Brake and Tow/Haul Mode
220-Amp Alternator and Heavy-Duty Cooling
Integrated Trailer Brake Controller and Trailering Provisions
Bed-Mounted 7-Pin Harness for Trailer Connectivity
Premium Cargo Bed Lighting and CornerStep Rear Bumper
Whether hauling construction equipment or a luxury camper, the Denali HD blends effortless power with professional-grade confidence.
Key Highlights
6.6L Duramax Turbo-Diesel V8 – 470 hp / 975 lb-ft torque
10-Speed Automatic Transmission
Onyx Black Exterior with Black Badging Package
20" Ultra-Bright Machined Aluminum Wheels
Jet Black Forge Leather Interior
Denali Reserve Package with Technology Package
15" Head-Up Display & Rear Camera Mirror
Bose® Premium Audio System
Gooseneck/5th-Wheel Prep Package
Power-Retractable Assist Steps with LED Lighting
Sunroof & Premium Floor Liners
Trailer Tire Pressure Monitoring System
Built for Canada
With block heater, battery protection, high-output alternator, and cold-climate engineering, the 2026 Sierra Denali 2500 HD is designed to perform flawlessly across Ontario’s toughest conditions — from construction sites to cottage country.
Now Available at Boyer Chevrolet Buick GMC Ajax 📍 425 Bayly Street West, Ajax, Ontario 📞 905-427-2500
Packages & Options
Standard Equipment
Technical Specifications
-
AM/FM Stereo
-
Auxiliary Audio Input
-
Bluetooth Connection
-
MP3 Player
-
Navigation System
-
Smart Device Integration
-
Requires Subscription
-
Satellite Radio
-
Premium Sound System
-
WiFi Hotspot
-
Chrome Wheels
-
Tires - Front All-Terrain
-
Tires - Rear All-Terrain
-
Conventional Spare Tire
-
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
-
Bumper, rear body-colour with bumper CornerSteps
-
Running Boards/Side Steps
-
Bed Liner
-
Bed Step, Black integrated on forward portion of bed on driver and passenger side
-
CornerStep, rear bumper
-
Cargo tie downs (12), fixed, rated at 500 lbs (226.8 kg) per corner
-
Grille (Signature Chrome Denali grille.)
-
Daytime Running Lights
-
Automatic Highbeams
-
Fog Lamps
-
Lamps, cargo area cab mounted integrated with centre 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 centre switch bank or key fob
-
Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
-
Lamps, Smoked Amber roof marker, (LED)
-
Heated Mirrors
-
Integrated Turn Signal Mirrors
-
Power Folding Mirrors
-
Power Mirror(s)
-
Mirror caps, chrome
-
Privacy Glass
-
Intermittent Wipers
-
Rain Sensing Wipers
-
Variable Speed Intermittent Wipers
-
Door handles, chrome
-
Integrated Tailgate Step
-
Tailgate and bed rail protection caps, top
-
LPO, Polished exhaust tip (dealer-installed) (Requires (L8T) 6.6L V8 gas engine. Not included with (L5P) Duramax 6.6L Turbo-Diesel V8 engine.)
-
Bucket Seats
-
Leather Seats
-
Pass-Through Rear Seat
-
Rear Bench Seat
-
Driver Adjustable Lumbar
-
Power Driver Seat
-
Passenger Adjustable Lumbar
-
Power Passenger Seat
-
Heated Front Seat(s)
-
Cooled Front Seat(s)
-
Heated Rear Seat(s)
-
Mirror Memory
-
Seat Memory
-
Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
-
Floor Mats
-
Steering wheel, wrapped
-
Heated Steering Wheel
-
Steering Wheel Audio Controls
-
Adjustable Steering Wheel
-
Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
-
Rear Seat Reminder
-
GMC Premium information Display- 13.4" diagonal Multicolour touch screen
-
Exterior Temperature Display, located in radio display
-
Compass, located in instrument cluster
-
Power Windows
-
Rear Defrost
-
Sliding Rear Window
-
Power Door Locks
-
Keyless Entry
-
Keyless Start
-
Remote Engine Start
-
Adaptive Cruise Control
-
Cruise Control
-
Universal Garage Door Opener
-
Wireless Charging
-
Security System
-
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
-
Auxiliary Audio Input
-
MP3 Player
-
Air vents, rear
-
A/C
-
Climate Control
-
Multi-Zone A/C
-
Auto-Dimming Rearview Mirror
-
Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
-
8 Cylinder Engine
-
Gasoline Fuel
-
10-Speed A/T
-
A/T
-
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
-
Running Boards/Side Steps
-
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.)
-
Keyless Start
-
Hill Descent Control
-
Transfer case, two-speed active, electronic Autotrac with push button control
-
Locking/Limited Slip Differential
-
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.)
-
Tow Hooks
-
Skid Plates protect the oil pan, front axle and transfer case
-
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
-
Suspension, Off-Road includes twin-tube shocks
-
Power Steering
-
4-Wheel Disc Brakes
-
ABS
-
Brake lining wear indicator
-
Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
-
X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
-
Automatic Highbeams
-
Front Collision Mitigation
-
Front Collision Warning
-
Lane Departure Warning
-
Tow Hitch
-
ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
-
Front Collision Mitigation
-
Front Collision Warning
-
Stability Control
-
Traction Control
-
Daytime Running Lights
-
Driver Air Bag
-
Front Head Air Bag
-
Front Side Air Bag
-
Passenger Air Bag
-
Passenger Air Bag Sensor
-
Rear Head Air Bag
-
Requires Subscription
-
Telematics
-
Rear Parking Aid
-
Aerial View Display System
-
Back-Up Camera
-
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.)
-
Lane Departure Warning
-
Cross-Traffic Alert
-
Blind Spot Monitor
-
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
-
Driver Restriction Features
-
Tire Pressure Monitor
-
Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
No matches were found.
-
Vehicle NameGMC Sierra 2500HD
-
Body StyleCrew Cab Pickup
-
Body CodeE63
-
DrivetrainFour Wheel Drive
-
Trans Order CodeMGM
-
Trans Type10
-
Trans Description Cont.Automatic
-
First Gear Ratio (:1)4.54
-
Second Gear Ratio (:1)2.87
-
Third Gear Ratio (:1)2.06
-
Fourth Gear Ratio (:1)1.72
-
Fifth Gear Ratio (:1)1.48
-
Sixth Gear Ratio (:1)1.26
-
Seventh Gear Ratio (:1)1.00
-
Eighth Gear Ratio (:1)0.85
-
Ninth Gear Ratio (:1)0.69
-
Tenth Gear Ratio (:1)0.63
-
Reverse Ratio (:1)4.54
-
Transfer Case Gear Ratio (:1), High1
-
Passenger Capacity5
-
Front Head Room (in)43.03
-
Front Leg Room (in)44.53
-
Front Shoulder Room (in)66.02
-
Front Hip Room (in)61.18
-
Second Head Room (in)40.12
-
Second Leg Room (in)43.4
-
Second Shoulder Room (in)65.3
-
Second Hip Room (in)60.24
-
Gross Axle Wt Rating - Front (lbs)5600
-
Curb Weight - Front (lbs)4013
-
Curb Weight - Rear (lbs)2812
-
Gross Vehicle Weight Rating Cap (lbs)11750
-
Gross Combined Wt Rating (lbs)27500
-
Dead Weight Hitch - Max Trailer Wt. (lbs)5000
-
Dead Weight Hitch - Max Tongue Wt. (lbs)500
-
Wt Distributing Hitch - Max Trailer Wt. (lbs)18500
-
Wt Distributing Hitch - Max Tongue Wt. (lbs)1850
-
Fifth Wheel Hitch - Max Trailer Wt. (lbs)17600
-
Fifth Wheel Hitch - Max Tongue Wt. (lbs)4400
-
Maximum Trailering Capacity (lbs)20000
-
Engine Order CodeL5P
-
Engine TypeTurbocharged Diesel V8
-
Displacement6.6L
-
Fuel SystemDirect Injection
-
SAE Net Horsepower @ RPM470 @ 2800
-
SAE Net Torque @ RPM975 @ 1600
-
Engine Oil CoolerYes
-
Cold Cranking Amps @ 0° F (Primary)720
-
Maximum Alternator Capacity (amps)220
-
Frame TypeBox Ladder
-
Suspension Type - FrontShort/Long Arm w/Torsion Bar
-
Suspension Type - Rear2-Stage Multi-Leaf
-
Axle Ratio (:1) - Front3.42
-
Axle Ratio (:1) - Rear3.42
-
Shock Absorber Diameter - Front (mm)51
-
Shock Absorber Diameter - Rear (mm)51
-
Stabilizer Bar Diameter - Front (in)1.38
-
Front Tire Order CodeQF9
-
Rear Tire Order CodeQF9
-
Spare Tire Order CodeZYG
-
Front Tire SizeLT275/65R20
-
Rear Tire SizeLT275/65R20
-
Spare Tire SizeLT275/70R18
-
Front Wheel Size (in)20
-
Rear Wheel Size (in)20
-
Spare Wheel Size (in)18
-
Front Wheel MaterialAluminum
-
Rear Wheel MaterialAluminum
-
Steering TypePwr Recirculating Ball
-
Turning Diameter - Curb to Curb (ft)52.7
-
Brake TypePwr
-
Brake ABS System4-Wheel
-
Disc - FrontYes
-
Disc - RearYes
-
Front Brake Rotor Diam x Thickness (in)14 x 1.6
-
Rear Brake Rotor Diam x Thickness (in)14.1 x 1.3
-
Fuel Tank Capacity, Approx (L)136
-
Wheelbase (in)159
-
Length, Overall (in)250.75
-
Width, Max w/o mirrors (in)81.85
-
Height, Overall (in)79.82
-
Cab to Axle (in)42.17
-
Ground Clearance, Front (in)10.12
-
Ground Clearance, Rear (in)10.12
-
Cargo Box Length @ Floor (in)82.2
-
Cargo Box Width @ Floor (in)71.4
-
Cargo Box Width @ Wheelhousings (in)51.85
-
Cargo Box (Area) Height (in)21
-
Cargo Volume (ft³)69.5
No matches were found.
Similar Vehicles
Crew Cab Standard Box 4-Wheel Drive Denali
VIN: 1GT4UREY6TF213478
Crew Cab Short Box 4-Wheel Drive Denali Ultimate
VIN: 1GTUUHE86TZ151640
City: 10.7L/100 km • Hwy: 9.3L/100 km
Crew Cab Standard Box 4-Wheel Drive Denali
VIN: 1GT4UREY3TF251086
Crew Cab Short Box 4-Wheel Drive AT4X
VIN: 3GTUUFEL6TG286092
City: 17.1L/100 km • Hwy: 14.7L/100 km
4WD Crew Cab Standard Box High Country
VIN: 2GC4KREY9T1138174
* Plus HST & Licensing. Price includes: Dealer Admin Fee ($599), Etching ($299), Tire Protection ($199), Tire Duty ($22.50), and OMVIC fee ($22.00) 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 Denali may not match the exact vehicle displayed. Please confirm the accuracy of this information with a sales representative.
Calculate Payments
Finance
Lease