Sales: (844) 568-0581
Year:
2026
Odometer:
10 km
Transmission:
Automatic
Drivetrain:
4x4
Engine:
8 Cylinders
Engine (L):
6.6
Fuel:
Diesel
Exterior color:
Onyx Black (GBA)
Doors:
4
Interior color:
Black
Stock number:
26486
VIN:
1GT1ULEYXTF266586
Powered by the 6.6L V8 Duramax Diesel [L5P] [L5P] running on diesel, 4WD / 4x4, Equipped with the heavy-duty trailering package [ZXT], this truck is built for professionals and outdoor enthusiasts operating through Pontiac county roads. Against the Ford F-250 or Ram 2500, few rivals deliver this combination of mechanical robustness and practical equipment at this price point in Quebec. The MultiPro tailgate [QT5] adds six distinct positions for versatile hauling and access. For Outaouais winters, engine block heater [K05] ensure immediate cabin comfort on the coldest mornings.
Vehicle Summary
Element | Detail |
Stock | 26486 |
VIN | 1GT1ULEYXTF266586 |
Model | 2026 GMC SIERRA 2500HD |
Trim | Pro Crew Cab 4WD 159 in |
Transmission | Automatic 10-Speed Allison [MGM] |
Drivetrain | 4WD / 4x4 |
Engine | 6.6L V8 Duramax Diesel [L5P] |
Fuel | Diesel |
Exterior Color | Noir |
Interior Color | Noir |
Mileage | 10 km |
Condition | New |
Dealer | Dilawri Chevrolet Buick GMC |
Address | 868 Boulevard Maloney Ouest, Gatineau, QC J8T 3R6 |
Featured technologies and equipment
• Rear climate control [C49]
• Engine block heater [K05]
• Heavy-duty trailering package [ZXT]
• MultiPro 6-position tailgate [QT5]
Its all-wheel drive system delivers excellent stability during winter storms and on snow-covered Outaouais roads.
What engine powers this 2026 GMC SIERRA 2500HD?
This vehicle is powered by the 6.6L V8 Duramax Diesel [L5P] [L5P], paired with a 10-speed Allison automatic [MGM] — the exact confirmed powertrain for stock #26486.
Is this GMC SIERRA 2500HD well-suited for Outaouais winters?
Yes. With the engine block heater [K05], this model is well-prepared for winter driving conditions in Gatineau and the surrounding area.
What is the towing capacity of this GMC SIERRA 2500HD?
This model includes the heavy-duty trailering package [ZXT] and. For the exact certified towing capacity for this specific configuration, contact our team at 819-568-5811.
Does this truck have a MultiPro tailgate?
Yes. The MultiPro tailgate [QT5] is confirmed on this vehicle. It offers six distinct positions for versatile hauling, bed access, and use as a step.
What determines the total cost of this GMC SIERRA 2500HD?
The total investment is determined by your chosen RPO equipment configuration, selected option packages, and active factory programs at time of purchase. Access our live local inventory or contact our team at 819-568-5811 for up-to-date regional pricing.
Where can I see this GMC SIERRA 2500HD (stock #26486) in Gatineau?
This vehicle is available at Dilawri Chevrolet Buick GMC, 868 Boulevard Maloney Ouest, Gatineau, QC J8T 3R6. Call 819-568-5811 or visit https://www.dilawrigm.com to schedule a viewing or get more information.
Reach out to verify the precise towing and payload ratings for this truck.
Please verify the accuracy of the information, price and availability with the dealership.
Country of Origin
United States GMC Truck
Model Group
Sierra
Vehicle Segment
Large Pick-up
Vehicle Type
Crew Cab
Body Cab Style
Crew Cab
Bed Style
regular
Brake Type
Pwr
Brake ABS System
4-Wheel
Front disc brakes
Yes
Rear disc brakes
Yes
Front Brake Rotor Diam x Thickness
14 x 1.6
Rear Brake Rotor Diam x Thickness
14.1 x 1.3
Fuel Tank Capacity, Approx
136 L
Steering Type
Pwr Recirculating Ball
Turning Diameter - Curb to Curb
52.7 ft
Front Tire Order Code
QXT
Rear Tire Order Code
QXT
Spare Tire Order Code
ZXT
Front Tire Size
LT265/70R17E
Rear Tire Size
LT265/70R17E
Spare Tire Size
LT265/70R17E
Dead Weight Hitch - Max Trailer Wt.
5,000 lbs
Dead Weight Hitch - Max Tongue Wt.
500 lbs
Maximum Trailering Capacity
20,000 lbs
Gross Axle Wt Rating - Front
5,600 lbs
Gross Axle Wt Rating - Rear
6,390 lbs
Curb Weight - Front
4,013 lbs
Curb Weight - Rear
2,812 lbs
Gross Vehicle Weight Rating Cap
11,150 lbs
Front Wheel Size
17 x - TBD -
Rear Wheel Size
17 x - TBD -
Spare Wheel Size
17 x - TBD -
Front Wheel Material
Aluminum
Rear Wheel Material
Aluminum
Suspension Type - Front
Short/Long Arm w/Torsion Bar
Axle Ratio (:1) - Front
3.42
Axle Ratio (:1) - Rear
3.42
Shock Absorber Diameter - Front
51 mm
Shock Absorber Diameter - Rear
51 mm
Stabilizer Bar Diameter - Front
1.38 in
Frame Type
Box Ladder
Front Head Room
43.03 in
Front Leg Room
44.53 in
Front Shoulder Room
66.02 in
Front Hip Room
61.18 in
Second Head Room
40.12 in
Second Leg Room
43.4 in
Second Shoulder Room
65.3 in
Second Hip Room
60.24 in
Wheelbase
159 in
Length, Overall
250.75 in
Width, Max w/o mirrors
81.85 in
Height, Overall
79.82 in
Cab to Axle
42.17 in
Ground Clearance, Front
10.12 in
Ground Clearance, Rear
10.12 in
Cargo Box Length @ Floor
82.2 in
Cargo Box Width @ Floor
71.4 in
Cargo Box Width @ Wheelhousings
51.85 in
Cargo Box (Area) Height
21 in
Cargo Volume
69.5 ft³
Cold Cranking Amps @ 0° F (Primary)
730
Cold Cranking Amps @ 0° F (2nd)
700
Maximum Alternator Capacity (amps)
220
Engine Order Code
L5P
Engine Type
Turbocharged Diesel V8
Displacement
6.6L/- TBD -
Fuel System
Direct Injection
SAE Net Horsepower @ RPM
470 hp
SAE Net Torque @ RPM
975 @ 1600
Engine Oil Cooler
Yes
Engine Displacement Units
6.6
Engine Camshaft
OHV
Engine Block Type
iron
Engine Cylinder Count
8
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
Reverse Ratio (:1)
4.54
Trans Power Take Off
Yes
Transfer Case Gear Ratio (:1), High
1
Seventh Gear Ratio (:1)
1.00
Eighth Gear Ratio (:1)
0.85
Ninth Gear Ratio (:1)
0.69
Tenth Gear Ratio (:1)
0.63
GMC
2026 Sierra 2500HD
Pro cabine multiplace 4RM 159 po
26486 / VIN: 1GT1ULEYXTF266586
