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American Trucks Australia

2026 GMC SIERRA 2500HD AT4X

2026 GMC SIERRA 2500HD AT4X

Regular price $249,999.00 AUD
Regular price Sale price $249,999.00 AUD
Sale Sold out
Price excludes on-road costs (rego, stamp duty & transfer fees) Finance Available Delivery Australia Wide
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2026 GMC Sierra 2500HD AT4X

4WD Crew Cab

Australia Complied & Right-Hand Drive Conversion

GVM
4,495 kg
Upgradable to 5,828 kg (NB2)
GCM
12,474 kg
Kerb Weight
3,535 kg
Payload
960 kg
Towing Capacity
4,500 kg
Drivetrain
4x4
10-Speed Automatic

If you're after a heavy-duty off-road beast that doesn't compromise on luxury or towing capability, the 2026 GMC Sierra 2500HD AT4X 4WD Crew Cab is in a class of its own. Powered by the legendary 6.6L Duramax Turbo-Diesel V8 producing 350 kW and 1,322 Nm of torque, paired with the 10-speed automatic transmission, this truck is engineered to conquer the toughest terrain while hauling heavy loads with absolute confidence. With a factory-fitted 38mm suspension lift, DSSV dampers and 35" mud-terrain tyres, the AT4X is GMC's most capable off-road heavy-duty truck ever built.

AT4X Exterior
  • Sterling Metallic exterior paint
  • 18" machined aluminium wheels with High Gloss Black accents
  • LT305/70R18 35" mud-terrain tyres — full-size matching spare included
  • 1.5" factory suspension lift with DSSV performance dampers front and rear
  • High Gloss Black front and rear bumpers with CornerSteps
  • Power retractable Black assist steps with LED lighting
  • GMC MultiPro Tailgate — six functional load and access configurations
  • Spray-on bedliner with GMC logo
  • Animated LED projector headlamps with LED daytime running lamps
  • Integrated LED fog lamps
  • Animated LED signature tail, stop, turn and reverse lamps
  • Power sunroof
  • Deep tinted glass
  • Power-folding trailering mirrors with heating, auto-dimming, turn signals and puddle lamps
  • High Gloss Black mirror caps
  • Rain-sensing front wipers
  • LED cargo bed lighting
AT4X Interior
  • Full Grain Leather — Obsidian Rush seat trim
  • 16-way power driver seat with lumbar and massage
  • 16-way power passenger seat with lumbar and massage
  • Heated and ventilated front seats
  • Heated second row outboard seats
  • 60/40 folding rear bench with full under-seat storage
  • Heated leather-wrapped steering wheel
  • 13.4" diagonal Premium GMC Infotainment System
  • Google built-in apps — navigation and voice assistance
  • Wireless Apple CarPlay & Android Auto
  • Bose Premium 12-speaker sound system with Richbass woofer
  • MultiPro Tailgate Audio System by Kicker
  • Adaptive cruise control
  • Remote vehicle start system
  • Wireless phone charging
  • Wi-Fi hotspot capable
  • Dual-zone automatic climate control
  • 12.3" digital driver information display
  • 15" multicolour head-up display
  • Rear Camera Mirror with auto-dimming and full camera display
  • 120V AC power outlet — instrument panel and bed mounted
  • Universal Home Remote
  • Premium floor liners front and rear
Off-Road Capability
  • 1.5" factory suspension lift — DSSV dampers front and rear
  • Short/long arm front suspension with 3-stage leaf springs from 3500
  • Driver-selectable full-locking rear differential (e-locking)
  • Electronic two-speed AutoTrac transfer case with push button control
  • Hill descent control and hill start assist
  • Front aluminium skid plates and transfer case steel skid plate
  • Ground clearance: 294 mm
  • Digital Variable Steering Assist — auto-adjusts to speed and conditions
  • 4-wheel disc brakes with DURALIFE rotors
  • Fully-boxed hydroformed frame
Towing Technology
  • Maximum towing capacity: 9,072 kg
  • Integrated trailer brake controller
  • ProGrade Trailering System with in-vehicle trailering app
  • Hitch Guidance with Hitch View — Pan/Zoom/Tilt
  • Trailer side blind zone alert
  • Trailer tyre pressure monitoring system
  • Bed view camera with two trailer camera provisions
  • 7-pin and 4-pin trailer connectors
  • Electronic trailer sway control
  • 136 L fuel tank
Safety Technology
  • Automatic emergency braking with front pedestrian braking
  • Forward collision alert with following distance indicator
  • Lane departure warning
  • HD surround vision — 360° overhead camera view
  • Front and rear ultrasonic park assist
  • Rear cross traffic alert
  • Blind spot detection with cross path detection
  • StabiliTrak stability and traction control with roll avoidance
  • Dual-stage front airbags, seat-mounted side airbags and curtain airbags
  • Tyre pressure monitoring with auto-learn and fill alert
  • OnStar emergency services capable
🛡

3-Year Unlimited Kilometre Warranty

Professionally converted to Right-Hand Drive and fully ADR compliant for Australian registration. Comprehensive warranty package includes roadside assistance.

Enquire Today to Secure This Truck One of the most capable off-road heavy-duty trucks available on the Australian market — combining extreme off-road performance, luxury comfort and serious towing capability in one package.

Disclaimer: Photos displayed are for reference purposes only and may not represent the exact vehicle available. Specifications, features, and colours may vary. All prices exclude on-road costs including registration, transfer fees, stamp duty, and any other government or statutory charges unless otherwise stated. All weights, measurements and towing figures displayed are approximate only and are based on manufacturer data. These figures may vary depending on vehicle configuration, options fitted, and operating conditions. It is the customer's sole responsibility to conduct their own independent research and seek appropriate professional advice to verify all specifications, weights, and ratings prior to purchase. American Trucks Australia accepts no liability for any reliance placed on the figures displayed.
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