2025 GMC Sierra 2500HD Denali Ultimate Crew Cab 4WD 6.6L Duramax Turbo-Diesel Denali Ultimate One Owner Clean CARFAX This 2025 GMC Sierra 2500HD Denali Ultimate represents the top of the GMC HD lineup, combining serious towing capability with luxury-grade comfort and technology. Powered by the legendary 6.6L Duramax Turbo-Diesel V8 paired with a 10-speed automatic transmission, this Sierra is built for heavy-duty work while delivering a premium driving experience. Finished in Summit White with an upscale Alpine Umber interior, this truck stands out with Denali Ultimateâexclusive materials, advanced trailering technology, and refined design throughout. This is a one-owner truck with a clean CARFAX, reflecting careful ownership and documented history. Performance & Capability 6.6L Duramax Turbo-Diesel V8 10-speed automatic transmission Four-Wheel Drive Locking/Limited Slip Differential ProGrade Trailering System X31 Off-Road Package Heavy-duty cooling system Integrated trailer brake controller Exterior Highlights Power retractable running boards LED daytime running lights and automatic high beams Fog lamps Heated power-folding mirrors with integrated turn signals Integrated tailgate step Sunroof Privacy glass Interior Comfort & Luxury Denali Ultimate Alpine Umber interior Heated and ventilated front seats Heated rear seats Massaging front seats Heated steering wheel Heads-Up Display Rear sliding window Memory seating and mirrors Premium materials and Denali-exclusive trim Technology & Connectivity Bose Premium Sound System with CenterPoint Richbass subwoofer GMC Infotainment with navigation capability WiFi hotspot Wireless device integration Multiple camera views including Aerial View Display Universal garage door opener Safety & Driver Assistance Forward Collision Alert and Mitigation Lane Departure Warning Rear Parking Assist Cross-Traffic Alert Stability and Traction Control Multiple airbag systems Vehicle History Highlights One Owner Clean CARFAX Why This Sierra 2500HD Denali Ultimate? If you need maximum towing and payload capability without sacrificing luxury, this Denali Ultimate delivers. Itâs engineered for demanding jobs, long hauls, and buyers who want premium comfort every mile. Why Buy from Southwest Ford? At Southwest Ford, we believe in honest pricing, quality vehicles, and a straightforward buying experience. Every vehicle is carefully inspected, clearly represented, and competitively priced so you can buy with confidence. Our team
