Menu

2021 GMC Sierra HD in St. Louis

2021 GMC Sierra HD in St. Louis

2021 GMC Sierra HD Highlights

Starting at MSRP

$36,200

Max Towing Capacity

36,000 lbs.

MultiPro Tailgate

First-in-Class

Allison 10-Speed Automatic

First-in-Class

2021 GMC Sierra HD for Sale near St. Louis

The 2021 GMC Sierra HD is the largest and most powerful truck in GMC's line of trucks. The 2021 GMC Sierra HD features two Powertrains: one gas and one diesel to help power your new truck. The gas engine is a 6.6L V8 that gets 401 Horsepower and 464 lb.-ft. of torque. The diesel engine in the 2021 GMC Sierra HD is the 6.6L Duramax V8 Turbo-Diesel. This powerful engine gets 445 Horsepower and 910 lb.-ft. of torque and is a towing machine. The 2021 GMC Sierra HD gets the Best-in-Class Maximum Towing Capacity of 36,000 lbs from the Duramax Turbo-Diesel engine. The 2021 GMC Sierra HD is the first Heavy-Duty truck in its class to feature the powerful Allison 10-Speed Transmission. The 2021 GMC Sierra HD includes the Traction Select System with Tow/Haul and Off-Road Modes to help customize your drive. To make driving even easier when hauling or towing, Hill Start Assist and the Park Grade Hold Assist make it easy to park anywhere and get going when you need to. If you are hauling through the mountains utilizing the Brake Pad Life Monitor could be a lifesaver. This feature monitors the life of your brake pads and warns you before they need to be changed thus the chances of burning out your brakes and losing control of your 2021 GMC Sierra HD is low.

2021 GMC Sierra HD near St. Louis

2021 GMC Sierra HD Available at Lou Fusz Buick GMC

The 2021 GMC Sierra HD comes loaded with safety features that help improve overall safety and safety while towing. The HD Surround Vision Camera lets you get a perimeter view of your 2021 GMC Sierra HD. Another feature that is great when you are towing a third-wheel is the Trailer Tire Pressure Monitor Sensors that lets you keep track of the status of your tires and helps prevent unnecessary damage to your trailer or truck. The available Jackknife Alert in the 2021 GMC Sierra HD is essential if you will be towing large trailers because it warns you before you even get into the position to jackknife your truck and trailer. The 2021 GMC Sierra HD has some available safety features that you find in their smaller pick-up trucks and SUVs. The available Lane Departure Warning and IntelliBeam Auto High-Beams are a great added safety feature to your 2021 GMC Sierra HD. Depending on what you need your 2021 GMC Sierra HD to do, you can choose between the Sierra HD 2500 or the Sierra HD 3500. Each of these models comes in 5 different trim levels, so the options are endless. At Lou Fusz Buick GMC, we are happy to help you find the 2021 GMC Sierra HD that best suits your needs.

2021 GMC Sierra 2500 HD Models

  • 2021 GMC Sierra 2500 HD in St. Louis

    Sierra
    Starting at $36,200

    • 6.6L V8 Engine
    • Side Bed Step
    • CornerStep Rear Bumper

  • 2021 GMC Sierra 2500 HD SLE in St. Louis

    SLE
    Starting at $45,295

    • 12 Cargo Tie-downs
    • Air Filtration Monitoring
    • Automatic Locking Rear Differential

  • 2021 GMC Sierra 2500 HD SLT in St. Louis

    SLT
    Starting at $53,295

    • HD Rear Vision Camera
    • StabiliTrak
    • Cargo Bed LED Lighting

  • 2021 GMC Sierra 2500 HD AT4 in St. Louis

    AT4
    Starting at $60,795

    • Autotrac 2-Speed Transfer Case
    • Hill Descent Control
    • Off-Road Suspension

  • 2021 GMC Sierra 2500 HD Denali in St. Louis

    Denali
    Starting at $67,195

    • HD Surround Vision
    • Bed View Camera
    • Chrome Vertical Recovery Hooks

2021 GMC Sierra 3500 HD Models

  • 2021 GMC Sierra 3500 HD in St. Louis

    Sierra
    Starting at $39,095

    • Black Vertical Recovery Hooks
    • External Aux Transmission Oil Cooler
    • External Engine Oil Cooler

  • 2021 GMC Sierra 3500 HD SLE in St. Louis

    SLE
    Starting at $44,495

    • Brake Pad Wear Indicator
    • Cab-Mounted Cargo Area Lamps
    • Deep-Tinted Glass

  • 2021 GMC Sierra 3500 HD SLT in St. Louis

    SLT
    Starting at $56,295

    • Digital Variable Steering Assist
    • LED Daytime Running Lamps
    • LED Fog Lamps

  • 2021 GMC Sierra 3500 HD AT4 in St. Louis

    AT4
    Starting at $61,995

    • High Gloss Black Mirror Caps
    • LED Signature Taillamps
    • ProGrade Trailering System

  • 2021 GMC Sierra 3500 HD Denali in St. Louis

    Denali
    Starting at $68,395

    • Automatic Emergency Braking
    • 20-Inch Multi-Dimensional Polished Wheels
    • Chrome Accents

2021 GMC Sierra HD Features

2021 GMC Sierra HD Available Technology Features:

  • 15-Inch Diagonal Head-Up Display
  • Wireless Charging
  • Rear Camera Mirror
  • Bose 7-Speaker Premium Audio
  • 8-Inch Diagonal Premium GMC Infotainment with Navigation
  • Amazon Alexa
  • Apple CarPlay
  • SiriusXM 360L
  • Android Auto
  • 8-Inch Diagonal Color Driver Information Center
2021 GMC Sierra HD in St. Louis
2021 GMC Sierra HD in St. Louis

New 2021 GMC Sierra HD Safety Features:

  • Transparent Trailer View
  • HD Surround Vision
  • Trailer Tire Pressure Monitor Sensors
  • Jackknife Alert
  • Safety Alert Seat
  • Bed View with Zoom and Hitch Guidance
  • Rear Trailer View
  • Trailer Length Indicator
  • Lane Departure Warning
  • Front and Rear Park Assist
  • IntelliBeam

2021 GMC Sierra HD Specs

6.6L V8 401 Horsepower 464 lb.-ft. of torque
6.6L Duramax V8 Turbo-Diesel 445 Horsepower 910 lb.-ft. of torque
Maximum Towing Capacity 36,000 lbs. Standard
Transmission Allison 10-Speed Transmission Available on Specific Trims
Trailering ProGrade Trailering System Standard
MultiPro Tailgate Standard
Roll Formed High-Strength Steel Bed Standard
12 Cargo Tie-Downs Standard
Power-Retractable Assist Steps with LED Perimeter Lighting Available on Specific Trims
LED Fog Lamps Available on Specific Trims
LED Headlamps Standard
LED Taillamps Available on Specific Trims
LED Cargo Bed Lighting Available on Specific Trims
Side Bed Step Standard
MultiPro Audio System by Kicker Available on Specific Trims
Heated and Ventilated Front Seats Available on Specific Trims
Heated Rear Outboard Seats Available on Specific Trims
Heated Steering Wheel Available on Specific Trims
Dual Zone Automatic Climate Control Standard
Rear Vents Available on Specific Trims
Rear Seatback Storage Standard
15-Inch Head-Up Display Available on Specific Trims
Rear Camera Mirror Available on Specific Trims
4G LTE Wi-Fi HotSpot Standard
Apple CarPlay Standard
Android Auto Standard
GMC Infotainment with 8-Inch Diagonal Color Touchscreen Available on Specific Trims
Navigation Available on Specific Trims
SiriusXM 360L Standard
Wireless Charging Available on Specific Trims
Bose 7-Speaker Premium Sound Available on Specific Trims
Class-Leading 15 Camera Views Available on Specific Trims
Transparent Trailer View Available on Specific Trims
HD Surround Vision Standard
Trailer Tire Pressure Monitor Sensors Available on Specific Trims
Safety Alert Seat Available on Specific Trims
Jackknife Alert Standard
Front and Rear Park Assist Available on Specific Trims
Rear Trailer View Available on Specific Trims
Trailer Length Indicator Available on Specific Trims
IntelliBeam Available on Specific Trims
Lane Departure Warning Available on Specific Trims
Search
Contact

Contact Us

Main 314-656-7987 Sales 314-656-7987
10950 Page Blvd
Saint Louis, MO 63132
Glovebox
Chat
Search
Contact Us

Contact Us

Main 314-656-7987 Sales 314-656-7987
10950 Page Blvd
Saint Louis, MO 63132
Glovebox
Chat
Lou Fusz Buick GMC 38.6951, -90.4045.