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 legroom.
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
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