The 2026 GMC Sierra 1500 AT4 right hand drive brings premium off-road ability, advanced engineering and upscale comfort together in a bold full-size pickup. Built for those who expect power and refinement in equal measure, it’s ideal for towing, touring and tackling terrain with confidence and style.
Power comes from a choice of engines, led by the 3.0-litre Duramax turbo-diesel inline six delivering 305 hp (227 kW) and 671 Nm of torque, or an available 6.2-litre EcoTec3 V8 with 420 hp (313 kW) and 624 Nm. Both are matched to a 10-speed automatic transmission with four-wheel drive for smooth, instant torque and effortless towing performance. The Sierra AT4’s 0–100 km/h and top-speed figures are TBC for Australian-spec right hand drive models.
Capability defines the AT4. Its factory 50 mm suspension lift, off-road-tuned shocks, locking rear differential and underbody protection are engineered to handle harsh environments with ease. Towing capacity is approximately 4,000 kg (TBC for local configuration), supported by a fully boxed high-strength steel frame and trailer brake integration. Large all-terrain tyres and automatic four-wheel drive selection ensure grip and composure whether crossing gravel, snow or highway asphalt.
Inside, the Sierra 1500 AT4 combines rugged styling with premium materials. Jet Black leather seating with Kalahari accents, perforated inserts and soft-touch surfaces give the cabin a refined yet purposeful look. A large central touchscreen and digital driver display deliver clear information and connectivity, while smartphone integration, navigation and a premium sound system enhance daily usability. Safety assurance comes from a suite of advanced driver-assist features, including trailer side-blind-zone alert, lane-keeping assist and a 360-degree camera system.
Autogroup International performs the mirror-image right hand drive conversion under its ISO 9001:2015-certified process. Every steering, pedal, wiring and dashboard component is re-engineered to OEM-equivalent standard, ensuring identical functionality and performance. The conversion maintains full compliance with destination-market regulations and preserves the factory’s safety, handling and comfort characteristics.
Options and personalisation include upgraded wheel and tyre packages, black or chrome appearance treatments, bed liners, tonneau covers, off-road protection packs and touring accessories. These enhancements allow owners to fine-tune stance, practicality and style while maintaining long-term durability and resale confidence.
Every right hand drive 2026 GMC Sierra 1500 AT4 is fully engineered and documented for the Australian market and comes with a factory-backed 3-year unlimited-kilometre warranty, with conditions identical to the OEM’s original warranty. The vehicle also includes nationwide 24/7 roadside assistance and a service-and-parts kit, supported through Autogroup’s Melbourne service centre.
Call the International Sales Team on +94 785 739 875 or the Australian team on (03) 9765 1300, or email vehicles@autogroupinternational.com
to request a build consult, confirm colour and interior, and review delivery timelines.
Details
YEAR
2026
BODY TYPE
Pickup
FUEL TYPE
Diesel
ENGINE
3.0-litre Duramax® Turbo Diesel
TRANSMISSION
10 Speed Auto
DRIVE TRAIN
4WD
EXTERIOR COLOUR
Volcanic Red Tintcoat
INTERIOR COLOUR
Jet Black with Kalahari accents
STOCK NO.
STATUS
In Transit
TOP SPEED
177 Km/Ph
0-100 KM/PH
8.0 seconds Seconds
MAX POWER (kW/RPM)
310 hp
MAX TORQUE (nm/RPM)
430 lb-ft
Features
Interior
- Seating Capacity: Up to 5 passengers.
- Upholstery: Jet Black interior with Kalahari accents, heated and ventilated perforated leather front seats.
- Infotainment: 13.4-inch Premium GMC Infotainment System, 12.3-inch Digital Driver Information Center.
- Audio System: Available Bose® Premium Audio System.
- Connectivity: Multiple USB-A and USB-C ports, available wireless charging pad.
- Storage: Ample cabin storage including under-seat compartments and center console.
Exterior
- Bed Length: Short Box: 69.9 inches (177.3 cm).
- Ground Clearance: Approximately 11.5 inches (29.2 cm).
- Approach Angle: ~34 degrees.
- Departure Angle: ~24.4 degrees.
- Tailgate: Available MultiPro® Tailgate with six functions.
- Bumpers: Available stamped steel front and rear.
- Skid Plates: Available underbody skid plates for off-road protection.
Performance
- 2.7L Turbocharged Inline-4: 310 hp @ 5,600 rpm, 430 lb-ft torque @ 3,000 rpm, 8-speed automatic.
- 5.3L EcoTec3 V8: 355 hp @ 5,600 rpm, 383 lb-ft torque @ 4,100 rpm, 8-speed automatic (2WD) / 10-speed automatic (4WD).
- 6.2L EcoTec3 V8: 420 hp @ 5,600 rpm, 460 lb-ft torque @ 4,100 rpm, 10-speed automatic.
- 3.0L Duramax Turbo-Diesel I6: 305 hp @ 3,750 rpm, 495 lb-ft torque @ 2,750 rpm, 10-speed automatic.
- 0–100 km/h (0–62 mph): Approximately 6.1–8.0 seconds depending on engine and configuration.
- Towing Capacity: Up to 9,400 lbs (4,267 kg) when properly equipped.
- Payload Capacity: Approximately 1,670 lbs (756 kg).
- Fuel Economy: Combined ~23 MPG (9.8 L/100 km).
- Drive Type: Available 4WD.
Safety & Security
- Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking.
- Lane Keep Assist with Lane Departure Warning.
- Following Distance Indicator, IntelliBeam® automatic high beams.
- Adaptive Cruise Control, Rear Cross Traffic Alert, Rear Pedestrian Detection.
- Trailer Side Blind Zone Alert, Bed View Camera.
- Theft deterrent system, OnStar® services (optional).
Connectivity & Technology
- Infotainment: 13.4-inch Premium GMC Infotainment System, 12.3-inch Digital Multicolor Driver Information Center.
- Connectivity: Wireless Apple CarPlay® and Android Auto™, Wi-Fi® hotspot available.
- Driver Assistance: Available Super Cruise™ hands-free driving technology.
- Trailering: ProGrade™ Trailering System with up to 14 camera views.
- Charging: Wireless charging pad and multiple USB-A / USB-C ports.