2027 GMC Sierra HD Pre Order
Discover the 2027 GMC Sierra HD in Richmond Hill
The strongest Sierra HD yet combines new diesel power, precise electric steering, eBoost braking and advanced trailering technology. We can help you explore seven confirmed trims and prepare for anticipated Canadian availability in late 2026.
Up to 550 Horsepower
Up to 17,236 kg Max Towing
Expected Late 2026
Be First to Know About the 2027 Sierra HD
The 2027 Sierra HD advances heavy-duty power, control, off-road capability and premium comfort. Pricing and ordering details are still to come, so tell us what you need from your next truck and we will keep you informed.
Follow Canadian Launch Updates
We will share current information about Canadian pricing, ordering and arrival timing as GMC releases new details.
Explore Seven Confirmed Trims
We will help you compare Pro, SLE, SLT, AT4, AT4X, Denali and Denali Ultimate based on how you work, tow and travel.
Plan for Serious Capability
Tell us what you tow, haul and carry so we can help identify the HD series, powertrain and equipment to explore.
Start Your Purchase Planning
We can review your current vehicle, financing preferences and purchase timeline before Canadian ordering details are released.
Why Choose Us for Your 2027 Sierra HD?
At Wilson Niblett, we make it easier to prepare for the new Sierra HD close to home. We will help you compare trims, understand confirmed capability and plan your next steps with clear answers from our Richmond Hill team.
- Local GMC sales support in Richmond Hill
- Clear guidance from our GMC truck specialists
- Help comparing 2500 HD, 3500 HD, gas and diesel choices
- Trade-in and financing planning before ordering begins
- GMC service and ownership support after delivery
Get 2027 Sierra HD Email Updates
Send us your information and we will follow up with the latest confirmed Canadian details for the 2027 GMC Sierra HD.
2027 GMC Sierra HD: Confirmed Canadian Highlights
The 2027 Sierra HD combines new diesel power and an enhanced gas V8 with electric power steering, eBoost braking, advanced trailering technology and premium cabin features.
Diesel Power
550 Horsepower
The available new Duramax 8.3L Turbo-Diesel V8 delivers 550 horsepower and supports the strongest Sierra HD yet.
Gas Power
412 Horsepower
The enhanced 6.6L V8 gas engine pairs strong output with an Allison 10-speed automatic transmission on confirmed configurations.
Maximum Towing
Up to 17,236 kg
Maximum available towing reaches 17,236 kilograms on the properly configured Sierra 3500 HD with the Duramax diesel engine.
2500 HD Towing
Up to 10,477 kg
The 2027 Sierra 2500 HD offers maximum available towing of up to 10,477 kilograms when properly configured.
Steering Control
Electric Power Steering
The rack-and-pinion system is designed to provide precise, responsive control and confident manoeuvring.
Braking Confidence
eBoost Braking
eBoost is designed to provide firm brake response, reduce trailering stopping distances and support control on downhill grades.
Professional Grade Capability and Comfort
The 2027 Sierra HD pairs serious towing strength with advanced trailering support, distinctive GMC design and available premium materials.
Available technology includes the ProGrade Trailering System, Adaptive Cruise Control with trailering capability and up to 14 camera views.
More GMC Canada-Confirmed Features
- Seven trims from hardworking Pro to Denali Ultimate
- Available 13.4-inch infotainment touchscreen
- Available 12.3-inch Driver Information Centre
- Available 15-inch multicolour Head-Up Display
- Available 16-way front seats with massage
- Available 12-speaker Bose Premium Series audio
Explore 2027 GMC Sierra HD Trims
Seven trims are confirmed for Canada. Review the lineup below, then tell us which combination of work capability, off-road hardware and premium comfort interests you.
Pro and SLE
Hardworking capability and useful technology
Canadian Pricing
- Pro includes a 6.6L gas V8 and Allison 10-speed
- Pro includes key trailering equipment
- SLE includes a 13.4-inch touchscreen
- SLE includes a 12.3-inch digital display
- SLE includes Tow/Haul mode
- Expected availability in late 2026
SLT
Comfort and trailering technology
Canadian Pricing
- Available heated and ventilated front seats
- Available perforated leather appointments
- Heated steering wheel
- ProGrade Trailering System
- In-Vehicle Trailering App
- Ask us about powertrain availability
AT4 and AT4X
Off-road capability with premium comfort
Confirmed AT4X Hardware
- AT4 Off-Road Suspension Package
- AT4 20-inch Gloss Black wheels
- AT4X lift and Multimatic DSSV dampers
- AT4X rear electronic-locking differential
- AT4X 35-inch mud-terrain tires
- AT4X 16-way massaging front seats
Denali
Signature GMC luxury
Confirmed Denali Comfort
- Heated and ventilated front seats
- Forge perforated leather surfaces
- Authentic wood trim
- Patterned aluminum trim
- 20-inch Ultra-Bright machined wheels
- Ask us about powertrain availability
Denali Ultimate
The peak of Sierra HD luxury
Standard Powertrain
- Allison 10-speed automatic transmission
- Signature Vader Chrome grille
- Exclusive Alpine Umber interior
- Full-grain leather seating
- Authentic Paldao wood
- 16-way front seats with massage
Get 2027 Sierra HD Email Updates
Tell us what you need from your next heavy-duty truck. We will keep you informed about Canadian pricing, ordering and availability as new details are released.
Vehicle specifications, trims, engines, horsepower, towing capacity, features, equipment and availability are based on GMC Canada information available at the time of publication and may change without notice. Preproduction vehicles and available accessories may be shown, and Canadian production models may differ. Availability is expected in late 2026; pricing and ordering timing have not been announced. Maximum towing figures require specific vehicle configurations and equipment, and actual capacity varies with passengers, cargo, options and accessories. Registering for email updates does not guarantee allocation, configuration, pricing, delivery timing or purchase. Contact us for current Canadian information and complete details.