Pre-Owned 2021 GMC Sierra 1500 AT4 For Sale Milford, DE

This 2021 GMC Sierra 1500 AT4 combines capability with refined comfort, offering you a truck that handles work and daily driving with equal confidence.- Power Sunroof- 20 Machined Aluminum Wheels with Carbon Grey Metallic Accents- Premium Bose 7-Speaker Sound System- 8 Premium GMC Infotainment System with Navigation- Wireless Charging- Heated & Ventilated Front Seats with Perforated Leather- Universal Home Remote- Power Sliding Rear Window- Integrated Trailer Brake Controller with Hitch Guidance- Remote Vehicle Starter System- Apple CarPlay & Android Auto- SiriusXM with 360L- 4G LTE Wi-Fi Hotspot- ProGrade Trailering System- Spray-On Pickup Bed Liner with AT4 LogoThe 3.0L Turbocharged Diesel I-6 engine delivers 277 horsepower and 460 lb-ft of torque, paired with a 10-speed automatic transmission and 4WD for genuine off-road and towing capability. This powertrain achieves 22 mpg city and 26 mpg highway, balancing performance with efficiency. The engine block heater and 220-amp alternator ensure reliable cold-weather starting and consistent electrical performance.The AT4 Preferred Package elevates this truck with the premium GMC Infotainment system featuring navigation, Bose premium audio, and wireless charging for your devices. Heated and ventilated front seats with perforated leather provide all-season comfort, while the heated steering wheel adds welcome warmth during cold mornings. The power sunroof brings natural light and openness to the cabin.For those who tow and haul, this Sierra comes equipped with the ProGrade Trailering System, integrated trailer brake controller, and hitch guidance technology to make towing straightforward and safe. The spray-on bed liner protects your investment, while the rear sliding power window improves bed access and visibility. Red recovery hooks and the auxiliary transmission oil cooler demonstrate the truck's serious capability.The technology suite keeps you connected and in control. The 8 infotainment display supports Apple CarPlay and Android Auto, while SiriusXM with 360L entertainment and the 4G LTE Wi-Fi hotspot ensure you stay informed on every drive. The in-vehicle trailering app and remote vehicle starter add convenience to ownership.Our market-based pricing includes Maryland state inspection and all reconditioning, so this Sierra is ready for you to drive home with confidence and peace of mind.