Pre-Owned 2026 GMC Sierra 2500HD AT4 For Sale Danbury, CT

This 2026 GMC Sierra 2500HD AT4 delivers commanding presence and capability with its powerful Duramax 6.6L V8 Turbodiesel engine, 4WD drivetrain, and 10-speed automatic transmission. With just 18,578 miles, this crew cab standard bed truck showcases the premium White exterior and sophisticated Jet Black With Kalahari Accents Leather interior that defines the AT4 lineup. The truck combines work-ready performance with refined comfort, featuring the X31 Off-Road Package and Preferred Equipment Group 4SB that equip it for demanding terrain and daily driving alike.- Duramax 6.6L V8 Turbodiesel with 220-Amp Alternator and Engine Block Heater- 2-Speed Active Transfer Case with Hill Descent Control and Off-Road Suspension- Bose Premium 7-Speaker Sound System with SiriusXM 360L Trial and Apple CarPlay/Android Auto- 10-Way Power Heated and Ventilated Driver and Passenger Seats with Memory Functions- LED Cargo Area Lighting, Spray-On Bedliner, and 120-Volt Bed and Panel Power Outlets- Bed View Camera with Trailer Camera Provisions and HD Surround Vision- Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert- Wireless Phone Projection and Wireless Charging with Keyless Open and Start- Remote Vehicle Starter System with IntelliBeam Automatic High Beams- 20" High Gloss Black Aluminum Wheels with Ultrasonic Front and Rear Park AssistThis AT4 represents an exceptional opportunity to own a versatile, well-equipped diesel truck with low mileage and premium features. We invite you to visit our showroom for a test drive and see firsthand why this Sierra stands apart from the competition.This vehicle is being sold as Ingersoll Certified Pre-Owned. This program gives you peace of mind. You will receive. **A Vehicle Inspection and Reconditioning Form. **A Vehicle Carfax. **90 Days or 3000 miles of Powertrain Plus Limited Coverage **A Free Maintenance event including oil change and tire rotation within the first 12mo or 12,000 miles of driving (at an Ingersoll Automotive Location). This vehicle is eligible to be upgraded to Ingersoll Certified Plus for $749. That will give you the additional benefits of 12mo or 12,000 miles of limited exclusionary coverage, 6 years or up to 100,000 miles of powertrain limited coverage (from original in-service date), courtesy transportation for covered repairs, and road side assistance. **A Vehicle Exchange Program if dissatisfied in the first 3 days or 150 miles of ownership. This is not a manufacturer sponsored programPre-Owned Vehicle Prices do not include government fees and taxes, any finance charges, $997 dealer documentation fees (Pawling Conveyance Fee capped at $175 per NY Law), any emissions testing fees or other fees. All prices, specifications and availability are subject to change without notice. The features and options listed are provided by a 3rd party organization and may not apply to this specific vehicle. Contact dealer for most current information. Not responsible for typographic errors.