2026 GMC Sierra 1500 AT4X Pickup

The 2025 GMC Sierra 1500 AT4X, right hand drive, combines serious off-road performance with premium refinement and everyday practicality. Built for those who expect rugged strength and sophisticated comfort in equal measure, it delivers advanced capability, luxury appointments and modern technology in a full-size pickup fully engineered and documented for the Australian market and other right hand drive destinations worldwide.

Under the bonnet, the AT4X offers a choice of two powerful engines — a 6.2-litre EcoTec3 V8 producing 420 hp (313 kW) and 624 Nm of torque, or a 3.0-litre Duramax® turbo-diesel delivering 305 hp (227 kW) and 671 Nm of torque. Both pair with a smooth 10-speed automatic transmission and advanced four-wheel drive system. The Sierra AT4X’s towing capacity remains identical to its left hand drive equivalent at up to 4,082 kg, giving owners proven strength for work, touring or play.

The AT4X’s off-road capability sets it apart. Factory-fitted with a 50 mm (2-inch) lift, DSSV spool-valve dampers, skid plates, locking front and rear differentials and aggressive all-terrain tyres, it is engineered to tackle demanding terrain while maintaining exceptional highway stability. The suspension calibration ensures confident handling across every surface, from rugged tracks to long-distance touring routes.

Inside, the cabin delivers premium comfort and purposeful design. Jet Black and Obsidian Rush full-grain leather upholstery, massaging front seats, authentic Vanta Ash wood trim and a 13.4-inch central touchscreen create a refined, connected space. The 12.3-inch driver display and head-up display keep critical information in view, while features such as wireless smartphone integration, adaptive cruise control, 360-degree cameras and trailer blind-zone monitoring add everyday convenience and safety assurance.

Autogroup International performs the right hand drive conversion through its ISO 9001:2015-certified process, re-engineering each component — from steering and pedals to wiring and dashboard — to OEM-equivalent functionality. The vehicle is fully engineered and documented for the Australian market and other right hand drive markets worldwide, ensuring perfect symmetry and compliance.

Personalisation options include upgraded wheels and tyres, touring and protection packs, bespoke interior themes and enhanced exterior styling to suit lifestyle or business needs. Each addition enhances durability, style and resale confidence while preserving the Sierra’s rugged capability.

Every right hand drive 2025 GMC Sierra 1500 AT4X comes with a factory-backed 3-year unlimited-kilometre warranty, matching the OEM’s original warranty conditions. It 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 [email protected]
to request a build consult, confirm colour and interior, and review delivery timelines.

Details

YEAR

2026

BODY TYPE

Pickup

FUEL TYPE

Petrol

ENGINE

6.2-litre EcoTec3 V

TRANSMISSION

10-speed automatic

DRIVE TRAIN

4x4

EXTERIOR COLOUR

Summit White

INTERIOR COLOUR

Obsidian Rush

STOCK NO.

STATUS

In Transit

TOP SPEED

177 Km/Ph

0-100 KM/PH

6.1 Seconds

MAX POWER (kW/RPM)

420

MAX TORQUE (nm/RPM)

460

Features

Interior
  • Full-grain leather seating in Obsidian Rush
  • Heated front & rear outboard seats; ventilated front seats
  • 12.3″ digital driver information centre
  • 13.4″ colour touchscreen with intuitive hard-key shortcuts
  • Heated leather-wrapped steering wheel; power steering column
  • Driver seat & mirror memory; dual-zone climate control
  • Rear 60/40 bench with integrated storage package
  • Power sunroof and premium floor liners
Exterior
  • Summit White paint with AT4X signature accents
  • Heavy-duty front bumper with recovery-ready design (AEV style)
  • GMC MultiPro tailgate; spray-on bedliner
  • LED daytime running lamps and cargo lighting
  • Power-folding, heated mirrors with approach lighting
  • Crew Cab, short box 4WD proportions—athletic and purposeful
  • 120V bed power outlet for tools and camping kit
  • Aggressive stance with factory 2″ lift
Performance
  • 6.2L EcoTec3 V8 with Dynamic Fuel Management; 10-speed auto
  • Multimatic DSSV dampers; AT4X-tuned off-road suspension
  • Front & rear e-locking differentials for traction on demand
  • 2-speed Autotrac transfer case; Hill Descent Control
  • Skid plates; StabiliTrak with trailer sway and hill-start assist
  • Integrated trailer brake controller and trailering package
  • GVWR 3,221 kg; rear axle 3.23 ratio
  • 4,500 kg braked towing
Safety & Security
  • Automatic Emergency Braking with Forward Collision Alert
  • Front Pedestrian Braking and Following Distance Indicator
  • Lane Keep Assist with Lane Departure Warning
  • HD Surround Vision; front & rear park assist
  • Trailer Side Blind Zone Alert and Rear Cross Traffic Braking
  • Rear Pedestrian Alert; Safety Alert Seat
  • IntelliBeam auto high-beam; TPMS with Tire Fill Alert
  • Advanced airbag system and robust body structure
Connectivity & Technology
  • Google built-in infotainment on 13.4″ display
  • Wireless Apple CarPlay & Android Auto
  • Bose 12-speaker premium audio
  • 15″ head-up display and rear camera mirror
  • Adaptive cruise control with stop-and-go
  • In-vehicle trailering app with checklist and profiles
  • Wireless charging; multiple USB-A/USB-C ports
Payload & Towing
GVWR: 4500Kg
Special Options
  • 6.2L EcoTech V8
  • Active Exhaust