This 2023 GMC Sierra 2500HD AT4 delivers commanding performance and capability wrapped in a striking Green exterior. Powered by a Duramax 6.6L V8 Turbodiesel engine with a 10-speed automatic transmission and 4WD, this truck is engineered for serious work and weekend adventures alike. With 45,500 miles, one owner history, and a clean CarFax, you're looking at a well-maintained heavy-duty truck ready to tackle whatever you demand of it.

Key Features:
- Gooseneck/5th Wheel Package with integrated trailering system
- Duramax 6.6L turbocharged diesel with 220-amp alternator
- Off-Road Suspension with X31 Off-Road Package and hill descent control
- Heated and ventilated front seats with 10-way power adjusters
- Premium GMC Infotainment System with Apple CarPlay, Android Auto, and SiriusXM
- Power-retractable assist steps and 20" machined aluminum wheels
- Bed-mounted camera system with trailer camera provisions
- All-weather tires and engine block heater for year-round reliability

The AT4 trim brings premium comfort and capability to the Sierra lineup. You'll find heated rear seats, remote keyless entry with push-button start, an auto-dimming rear-view mirror, and a heated steering wheel. The spray-on bed liner with AT4 logo protects your cargo, while the integrated trailer brake controller and tire pressure monitoring sensors make towing safer and more controlled.

Experience the difference a quality heavy-duty truck makes. Visit us today to sit behind the wheel of this exceptional Sierra 2500HD and discover why AT4 owners return to GMC.