2021 GMC Sierra Specifications

Key Performance Specifications

358
Horsepower
22.5
MPG Combined
7.3
0-60 MPH (sec)
11298
Towing (lbs)
4.0
Safety Rating
$41,052
Starting MSRP

💰 Current Market Value & Purchase Options

Get the latest market value and find the best deals for your 2021 Gmc Sierra:

📊 Vehicle Value Lookup

💰 Kelley Blue Book Get official KBB values 📊 Edmunds Professional vehicle appraisal 🚗 AutoTrader Find vehicles for sale 🔍 Cars.com Shop new & used cars ⭐ CarGurus Best deals & reviews 🏪 CarMax Buy with confidence

🛒 Find & Finance This Vehicle

💳 Auto Loan Calculator Calculate payments 🛡️ Auto Insurance Quotes Compare insurance rates

🔗 AutoDataHub.net may earn commissions from purchases made through these links. Values and availability subject to change. Always verify current market conditions and financing terms.

Engine & Performance

Engine Type: V6

Displacement: 3.8L

Horsepower: 358 HP @ 5,248 RPM

Torque: 250 lb-ft @ 4,856 RPM

Transmission: Automatic 4-Speed

Drivetrain: FWD

Fuel Economy

City MPG: 20

Highway MPG: 25

Combined MPG: 22.5

Fuel Tank: 19.5 gallons

Range: 505 miles

Emissions: SULEV

Dimensions & Weight

Length: 173.9 inches

Width: 77.0 inches

Height: 65.9 inches

Wheelbase: 129.9 inches

Curb Weight: 4946 lbs

Gross Weight: 5460 lbs

Interior & Cargo

Seating: 6 passengers

Front Headroom: 37.4 inches

Front Legroom: 44.2 inches

Rear Headroom: 37.6 inches

Rear Legroom: 38.1 inches

Cargo Volume: 129.8 cubic feet

Safety & Technology Features

Standard Safety Features:

Anti-lock Braking System (ABS)
Electronic Stability Control
Traction Control
Multiple Airbags
Tire Pressure Monitoring

Technology Features:

Bluetooth Connectivity
USB Ports
Touchscreen Display
Backup Camera
Smartphone Integration