2019 GMC Sierra 1500 AT4
$11,991 less than this car
- 133,369 mi
- 4WD
- Automatic
- Gasoline
- Truck
Brustolon Buick GMC · Mystic, CT · 46 mi away
66,634 miles · truck

This 2020 GMC Sierra 1500 AT4 arrives ready to tackle any challenge with premium capability and refined comfort. Finished in clean white with jet black leather interior accented in Kalahari tones, this crew cab short box combines serious truck performance with elevated convenience. With moderate mileage of 66,634 miles, it has plenty of service life ahead while maintaining its strong road presence and dependable character. - Power Sunroof - 20 Machined Aluminum Wheels with Carbon Grey Metallic Accents - AT4 Premium Package - Rear Underseat Storage (LPO) - Technology Package - Heated Driver & Front Passenger Seats - Premium GMC Infotainment System with Navigation - HD Surround Vision with Trailer View Camera - Rear Camera Mirror - Lane Keep Assist with Lane Departure Warning Powered by an EcoTec3 5.3L V8 with a responsive 10-speed automatic transmission, this Sierra delivers EPA-estimated 16 city / 21 highway MPG with an available 4WD system ideal for varied terrain. The AT4 package elevates this truck with premium features including off-road suspension, hill descent control, and integrated trailering technology—all supported by comprehensive driver assistance systems like automatic emergency braking, adaptive cruise control, and rear cross traffic alert. Inside, power-heated leather seating, a heated steering wheel, and wireless charging create a commanding driving environment, while the truck bed includes a spray-on liner with AT4 branding and LED cargo lighting for versatility. This Sierra represents strong value for buyers seeking a capable, well-equipped truck backed by genuine luxury touches. We invite you to experience the commanding comfort and trusted capability this AT4 delivers—contact us today to schedule your test drive.
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
In the typical middle range · 30% of 10 similar listings ask more than this car.
How we calculate market value: comparable cars for sale now plus their last listed prices.
Price tracked by AutosXchange since Nov 12, 2026. No price change at this dealership since Nov 12 ($34,965).
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
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2019 GMC Sierra 1500 AT4133,369 miles · Brustolon Buick GMC · Mystic, CT · 46 mi away$22,974$11,991 less than this car
2020 GMC Sierra 1500 AT4110,591 miles · GMC of Watertown · Watertown, CT · 54 mi away$30,000$4,965 less than this car
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Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
Riverhead GMC · Riverhead, NY · 0 mi away
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