Reduced by $575 since Jun 16, 2026

2021 GMC Sierra Fleet/Base



  • $20,620 SALE PRICE
    $975 TOP HAT SAVINGS



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Vehicle Information

VIN: 1GTR9AEF5MZ129367
Stock #: B1813
Model Code: TK10753
  • Body Style Double Cab
  • Exterior Color Summit White
  • Interior Color Jet Black Vinyl
  • Mileage 148,559
  • Fuel Economy
    City/Highway 15/20 MPG
  • Engine 8 Cyl - 5.3 L
  • Transmission 6-speed automatic
  • Fuel Type Gasoline

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Vehicle Details
Ready to tackle any job with confidence - this 2021 GMC Sierra 1500 Fleet/Base 4WD with the robust 5.3L V8 delivers power, capability, and reliability in St. Louis, MO. Ideal for contractors, fleet managers, or anyone who needs a dependable workhorse, this GMC Sierra combines rugged performance with modern convenience features to make every drive productive and comfortable.

Built to handle tough loads and rough terrain, the 4WD system ensures traction when you need it most, while the 5.3L V8 offers the strength to haul, tow, and get the job done. The Fleet/Base trim focuses on practical durability, with straightforward controls and a functional interior that stands up to daily use.

Stay connected and entertained on the road with Android Auto and XM Radio, while Hands Free Bluetooth® makes calls and music streaming effortless and safe. Back-Up Camera enhances visibility when reversing into tight spots or loading equipment. This GMC Sierra comes with a CARFAX Clean Report, giving you added peace of mind about its history and condition.

Located in St. Louis, MO, this 2021 GMC Sierra 1500 Fleet/Base is a smart choice for buyers seeking a capable, well-equipped pickup ready for work or weekend projects. Contact us to schedule a test drive or request more details - see why this GMC Sierra is a top pick for performance, durability, and practical features in the St. Louis area.

Equipment
It features a hands-free Bluetooth® phone system. Our dealership has already run the CARFAX report and it is clean. A clean CARFAX is a great asset for resale value in the future. See what's behind you with the back up camera on the GMC Sierra. It offers Android Auto for seamless smartphone integration. This 1/2 ton pickup offers Apple CarPlay for seamless connectivity. This GMC Sierra is equipped with the latest generation of XM/Sirius Radio. Set the temperature exactly where you are most comfortable in this unit. The fan speed and temperature will automatically adjust to maintain your preferred zone climate. This unit has a V8, 5.3L high output engine. This unit is outfitted with an OnStar communication system. Greater towing safety becomes standard with the installed trailer brake. The GMC Sierra has four wheel drive capabilities. With the keyless entry system on this unit you can pop the trunk without dropping your bags from the store.

Packages
Convenience Package: LED Cargo Area Lighting; Remote Keyless Entry; EZ Lift Power Lock and Release Tailgate; Deep-Tinted Glass; Electric Rear-Window Defogger; Cruise Control; Heated Power-Adjustable Outside Mirrors. Sierra Value Package: Trailering Package. Preferred Equipment Group 1SA: Front 40/20/40 Split-Bench Seat; Front Frame-Mounted Black Recovery Hooks; 17" X 8" Silver Painted Steel Wheels; Solar Absorbing Tinted Glass; Chrome Surround Grille with Black Mesh; 170 Amp Alternator; Black Manual Outside Mirrors; 255/70R17 AS BW Tires; Power Rear Windows with Express Down; Single Speed Transfer Case. Auto-Locking Rear Differential. Trailering Package. Integrated Trailer Brake Controller. Cruise Control. 120-Volt Instrument Panel Power Outlet. Electric Rear-Window Defogger. Deep-Tinted Glass. OnStar and GMC Connected Services Capable. LED Cargo Area Lighting. SiriusXM Radio. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**

Additional Information
*A documentation fee of $620.79 applies to vehicle purchases to cover administrative processing. This fee is already included in the price or clearly broken down in the price stack. Please see dealer for details.

Eligible Benefits

All Features

ENGINE, 5.3L ECOTEC3 V8 WITH AVAILABLE ACTIVE FUEL MANAGEMENT

  • (355 hp [265 kW] @ 5600 rpm
  • 383 lb-ft of torque [518 Nm] @ 4100 rpm) With (FHS) E85 FlexFuel
  • engine includes Active Fuel Management.)

  • Convenience Package: LED Cargo Area Lighting; Remote Keyless Entry; EZ Lift Power Lock and Release Tailgate; Deep-Tinted Glass; Electric Rear-Window Defogger; Cruise Control; Heated Power-Adjustable Outside Mirrors
  • Sierra Value Package: Trailering Package
  • Preferred Equipment Group 1SA: Front 40/20/40 Split-Bench Seat; Front Frame-Mounted Black Recovery Hooks; 17" X 8" Silver Painted Steel Wheels; Solar Absorbing Tinted Glass; Chrome Surround Grille with Black Mesh; 170 Amp Alternator; Black Manual Outside Mirrors; 255/70R17 AS BW Tires; Power Rear Windows with Express Down; Single Speed Transfer Case
  • Auto-Locking Rear Differential
  • Trailering Package
  • Integrated Trailer Brake Controller
  • Cruise Control
  • 120-Volt Instrument Panel Power Outlet
  • Electric Rear-Window Defogger
  • Deep-Tinted Glass
  • OnStar and GMC Connected Services Capable
  • LED Cargo Area Lighting
  • SiriusXM Radio
  • Apple CarPlay/Android Auto smart device mirroring
  • 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
  • Rear Vision Camera rear mounted camera
  • Brake assist system
  • Cruise control with steering wheel mounted controls
  • Primary monitor touchscreen
  • AutoTrac part-time 4WD
  • EcoTec3 5.3L V-8 gasoline direct injection
  • variable valve control
  • regular unleaded
  • engine with cylinder deactivation and 355HP
  • EcoTec3 5.3L V-8
  • Teen Driver restricted driving mode/alerts
  • Keyfob window control
  • Mechanical
  • Bluetooth® wireless audio streaming
  • Hitch Guidance vehicle to trailer hitching assist
  • Immobilizer
  • Bluetooth® handsfree wireless device connectivity
  • Trailer brake controller
  • Trailer Sway Control (TSC) trailer sway control
  • Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
  • GMC Infotainment System external memory control
  • Internet radio capability
  • StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
  • Hill Start Assist (HSA)
  • Rear seat check warning
  • 1 exterior 120V AC power outlet
  • LED daytime running lights
  • LED brake lights
  • EZ Lift
  • Easy lower tailgate
  • Trailer hitch light
  • Manual rear child safety door locks
  • Heated driver and passenger side door mirrors
  • Manual tilting steering wheel
  • Capless fuel filler
  • Wheel hub covers
  • 17 x 8-inch front and rear silver steel wheels
  • P255/70SR17 AS BSW front and rear tires
  • Vinyl front seat upholstery
  • 6 airbags
  • Driver front impact airbag
  • Seat mounted side impact driver airbag
  • Curtain first and second-row overhead airbags
  • Passenger front impact airbag
  • Seat mounted side impact front passenger airbag
  • Airbag occupancy sensor
  • Auto-locking doors
  • 6-speed automatic
  • Tow/Haul Mode selectable mode transmission
  • Vinyl rear seat upholstery
  • Manual climate control
  • Towing/Camper Pkg
  • Heated Exterior Mirrors
  • Power Adjustable Mirrors
  • Power Door Locks
  • Power Windows
  • Steering Wheel Mounted AudioControls
  • V8; EcoTec3; 5.3 Liter
  • Automatic; 6-Spd HD w/Overdrive
  • 4WD
  • Hill Start Assist Control
  • Traction Control
  • StabiliTrak
  • ABS (4-Wheel)
  • Air Conditioning
  • Power Steering
  • Tilt Wheel
  • AM/FM Stereo
  • Bluetooth® Wireless
  • Backup Camera
  • Dual Air Bags
  • Side Air Bags
  • F&R Head Curtain Air Bags
  • Daytime Running Lights
  • LED Headlamps
  • Towing Pkg
  • Steel Wheels
  • w/o Drvr Alert Pkg I
  • Mileage
    • Fuel Economy Est-Combined (MPG): 16
    • Fuel Economy Est-Combined (MPG): 17
    • EPA Fuel Economy Est - City (MPG): 14
    • EPA Fuel Economy Est - City (MPG): 15
    • EPA Fuel Economy Est - Hwy (MPG): 20
  • Electrical
    • Cold Cranking Amps @ 0° F (Primary): 720
    • Cold Cranking Amps @ 0° F (Primary): 730
    • Maximum Alternator Capacity (amps): 170
    • Maximum Alternator Watts: - TBD -
  • Cooling System
    • Total Cooling System Capacity (qts): - TBD -
  • Weight Information
    • Gross Axle Wt Rating - Front (lbs): 3800
    • Gross Axle Wt Rating - Rear (lbs): 3800
    • Curb Weight - Front (lbs): 2863
    • Curb Weight - Rear (lbs): 1952
    • Gross Vehicle Weight Rating Cap (lbs): 7000
    • Gross Combined Wt Rating (lbs): 15000
    • Gross Combined Wt Rating (lbs): 12800
  • Trailering
    • Dead Weight Hitch - Max Trailer Wt. (lbs): 5000
    • Dead Weight Hitch - Max Tongue Wt. (lbs): 500
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 9400
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 7400
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 940
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 740
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 9100
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 7300
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 2275
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 1825
    • Maximum Trailering Capacity (lbs): 9400
  • Suspension
    • Suspension Type - Front: Independent
    • Suspension Type - Rear: Solid Axle
    • Spring Capacity - Front (lbs): 3800
    • Spring Capacity - Rear (lbs): 3850
    • Axle Type - Front: - TBD -
    • Axle Type - Rear: - TBD -
    • Axle Capacity - Front (lbs): 3800
    • Axle Capacity - Rear (lbs): 3800
    • Axle Ratio (:1) - Front: 3.42
    • Axle Ratio (:1) - Rear: 3.42
    • Shock Absorber Diameter - Front (mm): 50
    • Shock Absorber Diameter - Rear (mm): 50
    • Stabilizer Bar Diameter - Front (in): 1.30
  • Brakes
    • Brake Type: Pwr
    • Brake ABS System: 4-Wheel
    • Disc - Front (Yes or ): Yes
    • Disc - Rear (Yes or ): Yes
    • Front Brake Rotor Diam x Thickness (in): 13.5 x 1.18
    • Rear Brake Rotor Diam x Thickness (in): 13.6 x 0.79
  • Tires
    • Front Tire Order Code: QBN
    • Rear Tire Order Code: QBN
    • Spare Tire Order Code: QBR
    • Front Tire Size: 255/70R17
    • Rear Tire Size: 255/70R17
    • Spare Tire Size: 255/70R17
    • Front Tire Capacity (lbs): - TBD -
    • Rear Tire Capacity (lbs): - TBD -
    • Spare Tire Capacity (lbs): - TBD -
    • Revolutions/Mile @ 45 mph - Front: - TBD -
    • Revolutions/Mile @ 45 mph - Rear: - TBD -
    • Revolutions/Mile @ 45 mph - Spare: - TBD -
  • Wheels
    • Front Wheel Size (in): 17 x 8.0
    • Rear Wheel Size (in): 17 x 8.0
    • Spare Wheel Size (in): 17 x - TBD -
    • Front Wheel Material: Steel
    • Rear Wheel Material: Steel
    • Spare Wheel Material: Steel
  • Steering
    • Steering Type: Electric Rack & Pinion
    • Steering Ratio (:1), On Center: - TBD -
    • Steering Ratio (:1), At Lock: - TBD -
    • Turning Diameter - Curb to Curb (ft): 46.9
    • Turning Diameter - Curb to Curb (ft): 46.3
    • Turning Diameter - Wall to Wall (ft): - TBD -
  • Frame
    • Frame Type: Hydroformed
  • Fuel Tank
    • Fuel Tank Capacity, Approx (gal): 24
    • Fuel Tank Location: - TBD -
  • Exterior Dimensions
    • Wheelbase (in): 147.44
    • Length, Overall (in): 231.75
    • Width, Max w/o mirrors (in): 81.24
    • Height, Overall (in): 75.63
    • Overhang, Front (in): - TBD -
    • Overhang, Rear w/o bumper (in): - TBD -
    • Front Bumper to Back of Cab (in): - TBD -
    • Cab to Axle (in): - TBD -
    • Cab to End of Frame (in): - TBD -
    • Ground to Top of Load Floor (in): - TBD -
    • Ground to Top of Frame (in): - TBD -
    • Frame Width, Rear (in): - TBD -
    • Ground Clearance, Front (in): 8.09
    • Ground Clearance, Rear (in): 8.09
  • Cargo Area Dimensions
    • Cargo Box Length @ Floor (in): 79.44
    • Cargo Box Width @ Top, Rear (in): - TBD -
    • Cargo Box Width @ Floor (in): 71.4
    • Cargo Box Width @ Wheelhousings (in): 50.63
    • Cargo Box (Area) Height (in): 22.4
    • Tailgate Width (in): - TBD -
    • Cargo Volume (ft³): 71.7
    • Ext'd Cab Cargo Volume (ft³): - TBD -
  • Interior Dimensions
    • Passenger Capacity: 6
    • Front Head Room (in): 43.03
    • Front Leg Room (in): 44.53
    • Front Shoulder Room (in): 66.02
    • Front Hip Room (in): 61.18
    • Second Head Room (in): 39.88
    • Second Leg Room (in): 35.24
    • Second Shoulder Room (in): 64.88
    • Second Hip Room (in): 60.24
  • Summary
    • Vehicle Name: GMC Sierra 1500
    • Body Style: Double Cab Pickup
    • Body Code: E63
  • Emissions
    • Tons/yr of CO2 Emissions @ 15K mi/year: 11.1
    • Tons/yr of CO2 Emissions @ 15K mi/year: 10.5
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*A documentation fee of $620.79 applies to vehicle purchases to cover administrative processing.