2025 GMC Sierra

2025 GMC Sierra 3500HD AT4 Crew Cab 4WD Thunderstorm Gray, Duramax Diesel, AT4 Premium Plus Package, Power Sunroof Experience heavy-duty capability, premium luxury, and rugged off-road performance in this 2025 GMC Sierra 3500HD AT4 Crew Cab 4WD, finished in Thunderstorm Gray with a Jet Black interior featuring Kalahari accents. Powered by the 6.6L Duramax turbo-diesel V8 producing 470 horsepower and 975 lb-ft of torque, paired with an Allison 10-speed automatic transmission, this premium heavy-duty truck delivers outstanding towing capability and everyday comfort. Originally equipped with over $15,000 in factory options, including the Duramax diesel engine, AT4 Premium Plus Package, and advanced trailering equipment, this Sierra 3500HD offers exceptional equipment and capability. Premium Features & Factory Options - 6.6L Duramax Turbo-Diesel V8 $9,490 - AT4 Premium Plus Package $5,035 - Gooseneck/5th Wheel Prep Package $545 - Thunderstorm Gray Metallic Paint $495 - Trailer Tire Pressure Monitoring System $50 - Technology Package - Power Sunroof - Multicolor Head-Up Display - Rear Camera Mirror - HD Surround Vision - Bose Premium Sound System - Heated and Ventilated Front Seats - Heated Rear Seats - Heated Steering Wheel - 10-Way Power Front Seats - Driver Seat Memory - 13.4-Inch GMC Premium Infotainment System - 12.3-Inch Digital Driver Information Center - Wireless Apple CarPlay - Wireless Android Auto - Wireless Smartphone Charging - Adaptive Cruise Control - Forward Collision Alert - Automatic Emergency Braking - Front Pedestrian Braking - Lane Departure Warning - Trailer Side Blind Zone Alert - Front and Rear Park Assist - Trailer Brake Controller - Trailering Package - Vehicle Trailering App - Spray-On Bedliner - GMC MultiPro Tailgate - LED Cargo Area Lighting - Power-Folding Heated Trailering Mirrors - Power Sliding Rear Window - Remote Start - Keyless Open and Start - Dual-Zone Automatic Climate Control - AT4 Off-Road Suspension - Hill Descent Control - Skid Plates - All-Terrain Tires Heavy-Duty Duramax Diesel Performance The optional $9,490 Duramax turbo-diesel V8 delivers 470 horsepower and 975 lb-ft of torque through the Allison 10-speed automatic transmission. Four-wheel drive, AT4 off-road suspension, and advanced trailering technology provide exceptional capability for work, towing, and recreational adventures. AT4 Premium Plus Luxury The $5,035 AT4 Premium Plus Package adds desirable luxury and technology, including a power sunroof and premium convenience features. The Technology Package enhances the driving experience with a Head-Up Display, Rear Camera Mirror, and advanced camera technology. Inside, the Jet Black and Kalahari interior offers heated and ventilated seating, Bose audio, and a spacious Crew Cab configuration. Advanced Trailering & Safety The $545 Gooseneck/5th Wheel Prep Package, integrated trailer brake controller, Trailering App, and Trailer Side Blind Zone Alert make this Sierra 3500HD ideal for serious towing. Adaptive Cruise Control, HD Surround Vision, and advanced driver assistance technology add confidence behind the wheel. Shop This 2025 GMC Sierra 3500HD AT4 in Tacoma, WA Searching for a used GMC Sierra 3500HD Duramax for sale in Tacoma, a diesel 4WD truck near Seattle, or a premium heavy-duty pickup in Washington? This Thunderstorm Gray Sierra AT4 combines powerful diesel performance, over $15,000 in original factory options, and exceptional versatility. Contact Mercedes-Benz o