The 2025 GMC Sierra 3500HD AT4 in White represents a serious workhorse built for those who demand capability and performance from their truck.- Duramax 6.6L V8 Turbodiesel engine with 470 horsepower and 975 lb-ft of torque- 10-Speed Automatic transmission with 4WD and 2-Speed Active Transfer Case- AT4 Premium Plus Package with off-road enhancements and technology upgrades- Gooseneck/5th Wheel Prep Package for heavy-duty towing applications- Power-Retractable Assist Steps with LED lighting- Spray-On Pickup Bedliner with GMC Logo- Bose Premium 7-Speaker Sound System with SiriusXM 360L Trial- Power Sunroof and Deep-Tinted Glass- Multicolor 15 Head-Up Display and 13.4 Information Display- HD Surround Vision with Bed View Camera and trailer camera provisions- Heated and ventilated front seats with 10-way power adjusters- Wireless Charging and Wireless Phone Projection- Ultrasonic Front & Rear Park Assist with Rear Cross Traffic Alert- 20 High Gloss Black aluminum wheels- Off-Road High Clearance Step with Hill Descent ControlThis truck comes equipped with the tools you need to handle substantial work demands. The Duramax diesel engine delivers impressive torque for towing and hauling, while the gooseneck prep package stands ready for fifth-wheel or gooseneck applications. The AT4 Premium Plus Package adds genuine off-road capability with advanced suspension and exclusive styling elements that set this truck apart.Inside, you'll find a modern cabin designed with both functionality and comfort in mind. The Bose sound system keeps entertainment sharp on long hauls, while wireless phone projection and charging keep your devices ready. Heated and ventilated front seats adapt to seasonal conditions, and the comprehensive camera system with surround vision takes the guesswork out of maneuvering in tight spaces or on job sites.The technology package includes features that make daily operation smoother—automatic high-beam headlights, rain-sensing wipers, and a multicolor head-up display keep your focus on the road ahead. Safety systems like Automatic Emergency Braking and Lane Departure Warning provide an extra layer of confidence, while the trailer side blind zone alert helps protect you when towing.This Sierra 3500HD has been well-maintained and comes with a clean Carfax history as a single-owner vehicle. The combination of premium features, serious diesel power, and purposeful off-road styling creates a truck that performs whether you're managing a commercial operation, hauling a fifth wheel, or navigating challenging terrain.We invite you to visit our showroom and experience this capable truck firsthand. Our team is ready to discuss financing options and answer any questions you have about this exceptional Sierra 3500HD AT4.