2021 GMC Sierra 3500HD SLE
$12,678 more than this car
- 66,319 mi
- 4WD
- 6-Speed Automatic
- Gasoline
- Truck
Carmi Chrysler Dodge Jeep Ram · Carmi, IL · 726 mi away
60,859 miles · truck

Discover the 2020 GMC Sierra 3500 HD SLE, a robust pickup truck built for serious work and versatile driving. With just over 60,000 miles, this used model combines powerful performance with modern tech features. Its striking White Frost Tricoat exterior complements a refined Dark Walnut/Slate interior, making it a standout on any job site or highway. Equipped with a 6.6L V8 gasoline engine delivering 401 horsepower and 464 lb-ft of torque, paired with a 6-speed automatic transmission and 4WD, this Sierra is ready for heavy-duty tasks. It offers seating for six across four doors, providing comfort for crew or family trips alike. The truck also boasts convenient features such as Apple CarPlay, a backup camera, Bluetooth connectivity, keyless entry, a tow package, and a Wi-Fi hotspot, ensuring you're connected and prepared wherever you go. Built to handle tough conditions, the 2020 GMC Sierra 3500 HD prioritizes safety and security. It features a rear seat reminder to prevent accidental leaving of passengers behind, along with 4-wheel ABS for reliable stopping power. Power door locks with anti-lockout and auto-locking functions add convenience and security, while a programmable safety key enhances control over vehicle access. An electronic parking brake with auto-off ensures quick and safe stops, making this truck a dependable choice for demanding environments. 2020 GMC Sierra 3500 HD Safety and Security Features This model comes equipped with essential safety features including a rear seat reminder to alert you of passengers, 4-wheel anti-lock braking system for stability, and power door locks with anti-lockout and auto-locking functions. The programmable safety key provides additional control, while the electronic parking brake with auto-off offers secure stopping power. These features work together to enhance driver confidence and passenger safety in every drive. 2020 GMC Sierra 3500 HD Entertainment and Technology Features Stay connected and entertained with the Sierra’s advanced tech package. It includes an 8-inch infotainment touchscreen with radio, offering easy access to music and navigation. Compatibility with myGMC Connected Access allows for smart device app integration, while voice-operated and hands-free phone call features keep your focus on the road. The system features six speakers, a USB auxiliary input, and an iPod/iPhone connection, providing clear audio options. Electronic messaging assistance with read and voice functions ensures you can stay productive without distraction. 2020 GMC Sierra 3500 HD Performance Features The Sierra 3500 HD is built for serious workload with an electronic hi-lo 4WD selector that allows you to switch between driving modes easily. Its rear locking differential enhances traction on challenging terrain, and the part-time 4WD system gives you control in tough conditions. These performance features make this truck suitable for hauling, towing, and off-road adventures, ensuring reliable power in any situation.
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
Among the lowest-priced · 100% of 6 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 5, 2026. No price change at this dealership since Nov 5 ($33,995).
AutosXchange Intel Hub: Price changes for this model in Texas · This model in the Intel Hub · Market movers in Texas
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 13); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2019–2021 Sierra 3500 SLE · used · any miles · nationwide. All 6 comparable cars for sale, nearest first.
$12,678 more than this car
Carmi Chrysler Dodge Jeep Ram · Carmi, IL · 726 mi away
$3,279 more than this car
Phil Long Ford of Motor City · Colorado Springs, CO · 851 mi away
$3,674 more than this car
Phil Long Ford of Motor City · Colorado Springs, CO · 851 mi away
$5,905 more than this car
RP Motors · Livingston, MT · 1,394 mi away
$5,900 more than this car
Taylor's Auto Max · Great Falls, MT · 1,506 mi away
$3,004 more than this car
MB Motors · Bellingham, WA · 1,963 mi away
2021 GMC Sierra 3500HD SLE66,319 miles · Carmi Chrysler Dodge Jeep Ram · Carmi, IL · 726 mi away$46,673$12,678 more than this car
2020 GMC Sierra 3500HD SLE Truck V864,109 miles · Phil Long Ford of Motor City · Colorado Springs, CO · 851 mi away$37,274$3,279 more than this car
2020 GMC Sierra 3500HD SLE Truck V855,299 miles · Phil Long Ford of Motor City · Colorado Springs, CO · 851 mi away$37,669$3,674 more than this car
2021 GMC Sierra 3500HD SLE43,144 miles · RP Motors · Livingston, MT · 1,394 mi away$39,900$5,905 more than this car
2019 GMC Sierra 3500HD SLE63,025 miles · Taylor's Auto Max · Great Falls, MT · 1,506 mi away$39,895$5,900 more than this car
2020 GMC Sierra 3500HD SLE73,572 miles · MB Motors · Bellingham, WA · 1,963 mi away$36,999$3,004 more than this carAll years and trims. Nearest first.
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