Used 2021 GMC Sierra 1500 SLT
73,629 milesTampa, FL 33647
For Sale:Price Unknown
- Truck
- Pickup
- Crew Cab
- Condition
- Used
- Mileage
- 73,629miles
- Aggregate Ratings
- 3.63.6 out of 5 stars
- Generation
- 4(2019 - 2026)
- Trim
- SLT
- Drivetrain
- 4X4
- Transmission
- 10-Speed Shiftable Automatic
- Exterior Color
- Pacific Blue Metallic (Blue)Factory Paint Code:GA0
- Interior Color
- Dark Walnut Slate (Gray)Factory Paint Code:HVE
- Size Segment
- 1/2 Ton
- Doors
- 4
- Max Seating
- 6
- Weight Class
- 6,000-10,000 lbs. (2)
- NHTSA Safety Ratings
- 44 out of 5 stars
- Final Assembly Point
- Silao, Mexico
- VIN
- 3GTU9DET5MG127653
Engine3L I6 Diesel 277hp
- Fuel Type:Diesel
- Max Horsepower:277 hp @ 3750 rpm
- Max Torque:460 ft.lbf @ 1500 rpm
- Brand:Duramax
- Displacement:3liters
- Block Type:I
- Cylinders:6
- Aspiration:Turbo
- Fuel Induction:Common Rail Direct Injection
- Cam Type:DOHC
- Stroke:3.54
- Bore:3.3
- Valves:24
* Based on opinions and should be considered as general guidance only.
- Reliability (3)3 out of 5 starsWhile generally solid, some owners have reported minor electrical glitches or issues with certain advanced features. Overall, it's considered average for the segment, but not class-leading.
- Maintenance (3)3 out of 5 starsMaintenance costs are typical for a full-size truck, with regular oil changes and tire rotations being the primary expenses. Parts can be moderately priced, and specialized repairs might be more costly due to the vehicle's size and complexity.
- Technology (4)4 out of 5 starsThe infotainment system is user-friendly with a responsive touchscreen and good integration for Apple CarPlay and Android Auto. Available features like the multi-color head-up display and various camera views enhance convenience and safety.
- Comfort (4)4 out of 5 starsThe interior is spacious and well-appointed, especially in the SLT trim. Seats are comfortable for long journeys, and the cabin remains relatively quiet at highway speeds, contributing to a pleasant experience for both driver and passengers.
- Dynamics (4)4 out of 5 starsThe 2021 GMC Sierra 1500 SLT offers a surprisingly composed ride for a full-size truck, with responsive steering and adequate power from its available engines. While not a sports car, it handles daily driving and light towing with confidence.
Seating:
- Seating Rows:2
- Standard Seating:6
- Max Seating:6
- Leg Room (front):44.5in.
- Leg Room (rear):43.4in.
Measurements:
- Width:81.2in.
Weight:
- Gross Weight:7,100lbs
Wheels & Tires:
- Tire:265/65R18
Fuel Tank:
- Fuel Tank Volume:24gallon
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Listed on April 3, 2026 (6 days ago)
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