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Performance Auto Group

3623 CLEVELAND BLVD, Caldwell, ID 83605
4.7
4.7 out of 5 stars
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Used 2021 GMC Sierra 1500 SLE

113,350 miles
For Sale:$28,999
Estimated payment:$658/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $25,500 and $29,900, while the current price is $28,999.$25,500 - $29,900$28,999

  • Priced at $28,999, this vehicle is within the current market price range of $25,500 to $29,900.

  • It has 113,350 miles, which is 35,650 (46%) above the median mileage of 77,700.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report
Used 2021 GMC Sierra 1500 SLE for sale near Boise, Nampa, Meridian, Caldwell, Kuna, Eagle, Garden City, Emmett
Used 2021 GMC Sierra 1500 SLE for sale near Boise, Nampa, Meridian, Caldwell, Kuna, Eagle, Garden City, Emmett
Used 2021 GMC Sierra 1500 SLE for sale near Boise, Nampa, Meridian, Caldwell, Kuna, Eagle, Garden City, Emmett
Used 2021 GMC Sierra 1500 SLE for sale near Boise, Nampa, Meridian, Caldwell, Kuna, Eagle, Garden City, Emmett
Used 2021 GMC Sierra 1500 SLE for sale near Boise, Nampa, Meridian, Caldwell, Kuna, Eagle, Garden City, Emmett
  • Truck
  • Pickup
  • Crew Cab
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    113,350miles
  • Aggregate Ratings
    3.6
    3.6 out of 5 stars
  • Generation
    4(2019 - 2026)
  • Trim
    SLE
  • Drivetrain
    4X4
  • Transmission
    Automatic
  • Exterior Color
    Quicksilver Metallic (Silver)Factory Paint Code:GAN
  • Size Segment
    1/2 Ton
  • Doors
    4
  • Max Seating
    6
  • Max Towing Capacity
    10,900lbs.
  • Weight Class
    6,000-10,000 lbs. (2)
  • NHTSA Safety Ratings
    4
    4 out of 5 stars
  • Final Assembly Point
    Silao, Mexico
  • VIN
    3GTU9BED2MG158579

Engine5.3L V8 Gasoline 355hp

  • Fuel Type:Gasoline
  • Fuel Quality:87
  • Max Horsepower:355 hp @ 5600 rpm
  • Max Torque:383 ft.lbf @ 4100 rpm
  • Brand:EcoTec3
  • Displacement:5.3liters
  • Block Type:V
  • Cylinders:8
  • Aspiration:Naturally Aspirated
  • Fuel Induction:Direct Injection
  • Redline:5,800rpm
  • Oil Capacity:7.6liters
  • Cam Type:OHV
  • Stroke:3.62
  • Bore:3.78
  • Valves:16

Message from the seller

2021 GMC Sierra 1500 SLE — EcoTec3 5.3L V8 (355 hp / 383 lb-ft). This Sierra is in excellent overall condition and comes with a clean CARFAX report.

Factory-equipped highlights and standard features:
- Powertrain and performance: EcoTec3 5.3L V8 with direct injection, variable valve timing and cylinder deactivation for improved efficiency; paired with a Hydra-Matic automatic transmission. Engineered for strong towing and hauling capability with factory-installed hardware and chassis tuning to support light- and medium-duty work.
- Exterior: GMC’s distinctive front grille and profile, factory alloy wheels with all-season tires, signature daytime running lamps and conventional headlamps, heated power mirrors, and durable pickup bed with integrated tie-down points for secure cargo control.
- Interior comfort and convenience: Comfortable cloth seating and practical cabin layout with driver-adjustable seating, split-folding rear seat for added cargo flexibility, air conditioning, power windows and door locks, remote keyless entry, cruise control, and steering wheel-mounted audio and phone controls.
- Infotainment and connectivity: GMC infotainment system with a factory touchscreen interface and smartphone integration (Apple CarPlay and Android Auto compatible), Bluetooth hands-free connectivity, USB ports for device charging and media, and available built-in connectivity services.
- Safety and security: Rear vision camera as standard equipment, StabiliTrak electronic stability control with traction control, front and side-impact airbags, and tire pressure monitoring. Factory provisions support available towing technologies and driver-assist features.
- Practical equipment: Tow/haul capability and wiring harness provisions for trailer integration, locking tailgate and a durable rear bumper for easy loading and everyday utility.

This Sierra SLE delivers the balance of V8 performance and practical truck features from the factory, finished in a clean, well-maintained example with a clear vehicle history. Contact for additional specifics, photos, or to schedule a viewing or test drive.

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Listed on April 2, 2026 (7 days ago)
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This Used 2021 GMC Sierra 1500 SLE is available for drivers in Boise, Nampa, Meridian, Caldwell, Kuna, Eagle, Garden City, Emmett ...