DURAMAX 6.6L TURBO-DIESEL V8 ENGINE
The Sierra Heavy Duty truck’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and 10-speed automatic transmission.
ADVANCED TRAILERING TECH
The 2026 Sierra Heavy Duty truck offers available advanced trailering-assistance technologies so you can trailer with added confidence.
LUXURIOUS MATERIALS
Sierra HD Denali Ultimate’s Alpine Umber interior features full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of its namesake’s mountain summit.
SPACIOUS CABIN
The Sierra Heavy Duty truck features spacious front head and leg room.
12.3" DIAGONAL COLOUR DRIVER INFORMATION CENTRE
GMC Sierra HD features a driver-focused display that puts information front, centre and easily visible in high-resolution clarity.
EXPLORE
COLOUR OPTIONS
Summit White
EXPLORE GALLERY
Select an image or open the entire gallery
TRIM SELECTOR
Pro
Available from: $74,443
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SLE
Available from: $83,742
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SLT
Available from: $93,243
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AT4
Available from: $101,943
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Denali
Available from: $105,943
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AT4X
Available from: $118,143
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Denali Ultimate
Available from: $131,043
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