Used 2021 GMC Sierra 3500HD SLT
- Truck
- Pickup
- Crew Cab
- Condition
- Used
- Mileage
- 70,400miles
- Aggregate Ratings
- 3.83.8 out of 5 stars
- Generation
- 4(2020 - 2026)
- Drivetrain
- 4X4
- Transmission
- 10-Speed Shiftable Automatic
- Exterior Color
- Summit White (White)Factory Paint Code:GAZ
- Interior Color
- Dark Walnut Slate (Gray)Factory Paint Code:HVE
- Size Segment
- Heavy Duty
- Doors
- 4
- Max Seating
- 6
- Final Assembly Point
- Flint, Michigan
- VIN
- 1GT49UEY6MF317815
Engine6.6L V8 Bio Diesel 445hp
- Fuel Type:Bio Diesel
- Max Horsepower:445 hp @ 2800 rpm
- Max Torque:910 ft.lbf @ 1600 rpm
- Brand:Duramax
- Displacement:6.6liters
- Block Type:V
- Cylinders:8
- Aspiration:Turbo
- Fuel Induction:Common Rail Direct Injection
- Oil Capacity:9.5liters
- Cam Type:OHV
- Stroke:3.9
- Bore:4.06
- Valves:32
Message from the seller
Just in — this 2021 GMC Sierra 3500HD SLT with 70k miles is built for serious work without giving up comfort. Equipped with the legendary Duramax 6.6L Turbo-Diesel and loaded with premium SLT features, this heavy-duty truck delivers massive towing capability, off-road confidence, and a refined interior — and it includes Warranty Protection for Life for long-term peace of mind.
Under the hood sits the highly sought-after Duramax 6.6L Turbo-Diesel (a $9,890 upgrade when new), paired with heavy-duty trailering technology and the X31 Off-Road & Protection Package — making this Sierra ready for job sites, mountains, and everything in between.
Performance & Capability:
• Duramax 6.6L Turbo-Diesel Engine
• Auto Locking Rear Differential
• 2-Speed Autotrac Transfer Case
• 220 Amp Alternator
• 120V Power Outlet (Cargo Bed & Instrument Panel)
• StabiliTrak w/ Trailer Sway Control & Hill Start Assist
• Digital Variable Steering Assist
• All-Terrain Tires
• Brake Pad Monitoring
• Trailer Brake Controller
• Trailering Package
• ProGrade Trailering System
X31 Off-Road & Protection Package:
• Off-Road Suspension
• Rancho Shocks
• Hill Descent Control
• Skid Plates
• X31 Badging
• Spray-On Bedliner
• All-Weather Floor Liners
• 20'' Machined Aluminum Wheels w/ Accents
Interior Comfort & Technology:
• GMC Premium Infotainment System w/ 8'' HD Touchscreen
• Wireless Apple CarPlay & Android Auto
• Bluetooth Audio Streaming
• Driver Information Center
• Keyless Open & Start
• Remote Start
• OnStar & 4G LTE Wi-Fi Capability
• SiriusXM Capable
• Teen Driver Mode
• Rear Seat Reminder
Comfort Features:
• Dual-Zone Automatic Climate Control
• Heated Front Seats
• 10-Way Power Front Seats w/ Lumbar
• Driver Seat & Mirror Memory
• Heated Leather-Wrapped Steering Wheel
• Front 40/20/40 Bench Seat w/ Underseat Storage
• 60/40 Rear Folding Bench w/ Storage Package
Exterior Highlights:
• GMC MultiPro Tailgate
• CornerStep Rear Bumper
• Side BedSteps
• 12 Fixed Cargo Tie Downs
• Power Fold/Extend Heated Trailer Mirrors w/ Auto-Dim
• LED Reflector Headlamps & Fog Lamps
• LED Daytime Running Lamps & Side Marker Lights
• LED Cargo Area Lighting
• Front Recovery Hooks
• Rear Wheelhouse Liners
• Chrome Assist Steps
Original MSRP: $57,400
Duramax Diesel Upgrade: $9,890
This Sierra 3500 SLT delivers heavy-duty capability with premium comfort — whether you're towing, hauling, or just want the power and durability of a diesel HD truck.
Sunset Chevrolet — part of the Sunset Auto Family.
Home of Warranty Protection for Life — a no cost to you, limited powertrain warranty honored at any ASE certified repair facility in North America for as long as you own that qualifying vehicle.