This 2021 GMC Sierra 2500HD AT4 Premium Plus Package delivers serious capability wrapped in striking Cayenne Red Tintcoat. With 55,700 miles and a powerful 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission and 4WD, this truck is built to handle demanding work and tough terrain. The AT4 Premium Plus Package combines premium comfort with off-road readiness, making this an exceptional choice for buyers who refuse to compromise.

**Key Features:**
- Power-Retractable Black Assist Steps
- Gooseneck/5th Wheel Package with Trailer Tire Pressure Monitor Sensors
- Multicolor 15 Head-Up Display with 8 Driver Information Center
- Premium GMC Infotainment System with Navigation and Bose Sound
- Heated and Ventilated Front Bucket Seats with 10-Way Power Adjustment
- HD Surround Vision with Bed View Camera and Rear Cross Traffic Alert
- Wireless Phone Projection and 4G LTE Wi-Fi Hotspot Capable
- Power Sunroof and Inside Rearview Auto-Dimming Camera Mirror
- Spray-On Pickup Box Bed Liner with AT4 Logo and Red Recovery Hooks
- Remote Vehicle Starter System with Keyless Open and Start

This truck arrives in excellent condition with all factory features intact. The 220-amp alternator, engine block heater, and exhaust brake demonstrate GMC's commitment to durability and performance in this class-leading model.

Contact us today to schedule your test drive and experience why the Sierra 2500HD remains the industry standard for serious truck buyers.