
This 2025 GMC Sierra 3500HD AT4 is a powerfully equipped crew cab diesel truck ready to handle serious work and towing. With its impressive Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission and 4WD capability, this White exterior beauty combines capability with premium comfort. The Jet Black interior with Kalahari accents and perforated leather creates a refined work environment that doesn't compromise on durability.
- Duramax 6.6L V8 Turbodiesel with 10-Speed Automatic transmission
- 4WD with 2-Speed Active Transfer Case and Off-Road Suspension
- Gooseneck/5th Wheel Prep Package and X31 Off-Road Package
- Bose Premium 7-Speaker Sound System with SiriusXM 360L
- Heated and ventilated leather front seats with 10-way power adjustment
- HD Surround Vision with Bed View Camera and trailer camera provisions
- Automatic Emergency Braking, Lane Departure Warning, and Rear Cross Traffic Alert
- 20" High Gloss Black aluminum wheels with spray-on bedliner
- GMC Premium 13.4" touchscreen with wireless phone projection
- Heated steering wheel and dual-zone automatic climate control
The AT4 trim brings serious off-road credibility with specialized suspension tuning and protective underbody features, making this truck as capable on challenging terrain as it is on the highway. Every detail from the IntelliBeam automatic headlights and rain-sensing wipers to the remote vehicle starter and wireless charging reflects GMC's commitment to convenience and confidence. Diesel owners appreciate the engine block heater, exhaust brake, and robust 80 amp-hour battery included here, plus the substantial towing and payload capacity this platform delivers.
Visit us today to experience this premium 3500HD in person and discover why serious truck buyers choose the Sierra lineup.


