Name: 2026 GMC Sierra 2500HD Crew Cab Standard Box 4-Wheel Drive Denali
Brand: GMC
SKU: 18-260092
Price: 123899 CAD
Availability: InStock

Vehicle Details

Body Style

Truck

Engine

6.6L 8Cyl

Exterior Colour

Black

Interior Colour

Black

Transmission

Automatic

Drivetrain

4×4

Doors

VIN

1GT4UREY8TF122809

Stock #

18-260092

Condition

New

Trim Details

Crew Cab Standard Box 4-Wheel Drive Denali

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

Installed Packages

Denali Preferred Equipment Group • 5SA

includes standard equipment
Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel Compatible • L5P

(470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
Transmission, 10-Speed Automatic • MGM
Gvwr, 11,750 Lbs. (5330 Kg) • JGP
Rear Axle, 3.42 Ratio • GU6
Wheels, 20" (50.8 Cm) Ultra-Bright Machined Wheels • Q7F

with bright chrome inserts with Black painted pockets
Tires, Lt275/65R20 All-Terrain, Blackwall • QF9
Onyx Black • GBA
Seats, Front Bucket • A50

with centre console
Jet Black, Forge Perforated Leather Seat Trim • H2X
Audio System, 13.4" Diagonal Premium Gmc Infotainment System With Google Built In Apps Such As Navigation And Voice Assistance • IOK

includes colour touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
Denali Reserve Package • PEC

includes (CWM) Technology Package and (CF5) power sunroof
Technology Package • CWM

includes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15" Diagonal Head-Up Display
Lpo, Black Badging Package • RFE

(dealer-installed), includes (SFZ) Black GMC emblems, LPO, and (RIK) Black Sierra Nameplates, LPO.
Heavy Duty Front Spring/Camper Package • F60

Note: If ordered for Camper usage, recommend ordering (UY2) Trailering wiring provisions
Engine Block Heater • K05
Alternator, 220 Amps • KW5
High Idle Switch • UF3
Gooseneck / 5Th Wheel Prep Package -- Hitch Platform To Accept Gooseneck Or 5Th Wheel Hitch. • Z6A

Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
Exhaust Brake • K40
Lpo, Wheel Locks, Set Of 4 • SFE

(dealer-installed)
Sunroof, Power • CF5
Assist Steps, Power-Retractable, With Led Perimeter Lighting And Bright Accent • BRS
Winter Grille Cover • BHP
Lpo, Black Gmc Emblems • SFZ

(dealer-installed)
Lpo, Black Sierra Nameplates • RIK

(dealer-installed)
License Plate Kit, Front, Incandescent Lighting • VK3

(will be shipped to orders with ship-to provinces that require front license plate)
Premium Floor Liners With Removable Carpet Insert, Front • BKF
Premium Floor Liners With Removable Carpet Insert, Rear • BKE
Multicolour 15" Diagonal Head-Up Display • UV6
Rear Camera Mirror • DRZ

inside rearview auto-dimming with full camera display
Lpo, Rear Underseat Storage • VBJ

composite storage bin, includes lockable lid, (dealer-installed)
Trailer Tire Pressure Monitor Sensors • PTT

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

No matches were found.

Options

Air Conditioning
Backup Camera
Bluetooth Connection
Cooled Seats
Cruise Control
Heated Seats
Keyless Entry
Lane Assist
Leather Seats
Navigation System
Parking Sensors
Power Seats
Power Windows
Remote Start
Running Boards
Satellite Radio
Smart Device Integration
Wi-Fi Hotspot

No matches were found.

Entertainment

AM/FM Stereo
Auxiliary Audio Input
Bluetooth Connection
MP3 Player
Navigation System
Smart Device Integration
Requires Subscription
Satellite Radio
Premium Sound System
WiFi Hotspot

Exterior

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, front, body-colour lower
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
Wheelhouse liners, rear
Mouldings, beltline, chrome
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, gate function manual with EZ Lift includes power lock and release, includes hitch area light
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.)

Interior

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

Mechanical

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.)

Package

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

Safety

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.

Summary

Vehicle Name

GMC Sierra 2500HD
Body Style

Crew Cab Pickup
Body Code

E63

Transmission

Drivetrain

Four Wheel Drive
Trans Order Code

MGM
Trans Type

10
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
Clutch Size (in)

N/A

Interior dimensions

Passenger Capacity

5
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

Weight information

Curb Weight - Front (lbs)

4023
Curb Weight - Rear (lbs)

2822
Gross Vehicle Weight Rating Cap (lbs)

11750
Gross Combined Wt Rating (lbs)

27500

Trailering

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

Engine Order Code

L5P
Engine Type

Turbocharged Diesel V8
Displacement

6.6L
Fuel System

Direct Injection
SAE Net Horsepower @ RPM

470 @ 2800
SAE Net Torque @ RPM

975 @ 1600

Electrical

Cold Cranking Amps @ 0° F (Primary)

720
Maximum Alternator Capacity (amps)

220
Maximum Alternator Watts

N/A

Suspension

Suspension Type - Front

Short/Long Arm
Suspension Type - Rear

Multi-Leaf Springs
Axle Ratio (:1) - Front

3.42
Axle Ratio (:1) - Rear

3.42
Shock Absorber Diameter - Front (mm)

2.01
Shock Absorber Diameter - Rear (mm)

2.01
Stabilizer Bar Diameter - Front (in)

1.38

Tires

Front Tire Order Code

QF9
Rear Tire Order Code

QF9
Spare Tire Order Code

ZYG
Front Tire Size

LT275/65R20
Rear Tire Size

LT275/65R20
Spare Tire Size

LT275/70R18
Revolutions/Mile @ 45 mph - Front (Rev/Mile)

N/A
Revolutions/Mile @ 45 mph - Rear (Rev/Mile)

N/A
Revolutions/Mile @ 45 mph - Spare (Rev/Mile)

N/A

Wheels

Front Wheel Size (in)

20
Rear Wheel Size (in)

20
Front Wheel Material

Aluminum
Rear Wheel Material

Aluminum
Spare Wheel Material

Steel

Steering

Steering Type

Pwr Recirculating Ball
Turning Diameter - Curb to Curb (ft)

52.7
Turning Diameter - Wall to Wall (ft)

N/A

Brakes

Brake Type

Pwr
Brake ABS System

4-Wheel
Disc - Front

Yes
Disc - Rear

Yes
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

Fuel Tank Capacity, Approx (L)

136

Exterior dimensions

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)

10.28
Ground Clearance, Rear (in)

10.28

Cargo area dimensions

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.