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New GMC Sierra 3500HD Marion, IL

New 2021 GMC in Marion, IL

Starting at $54,0001

Pros can’t be confined. Not with nearly 4 million square miles of the U.S. begging to be explored. The Next Generation Sierra Heavy Duty invites you to pull your world with you. Get out there in the premium-packed Sierra HD Denali or for road trips without roads, the First Ever Sierra HD AT4. Go explore the world—without leaving yours behind.

Experience the heavy-duty truck for you—the Next Generation 2020 GMC Sierra Heavy Duty.

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Highlights
DISTINCTLY RUGGED

DISTINCTLY RUGGED

The First Ever Sierra HD AT4 truck features rugged exterior stylings that match its off-road performance.

FULL-WIDTH STEP

FULL-WIDTH STEP

After removing the conventional hitch, the inner gate folds into a large step for easy entry and exit from the box (step holds up to 375 lbs).

INTERIOR WITH INTENTION

INTERIOR WITH INTENTION

Sierra Heavy Duty’s refined and expansive cabin offers advanced, thoughtfully placed technology to help ensure your ride is smooth and smart.

Available Trim Levels
2021 Sierra 3500HD 2WD Regular Cab, Long Bed Sierra
2021 Sierra 3500HD 2WD Regular Cab, Long Bed Sierra
4.3L Engine, 285 HP, 15/20 MPG

$29,7001 MSRP

2021 Sierra 3500HD 2WD Double Cab, Long Bed Sierra
2021 Sierra 3500HD 2WD Double Cab, Long Bed Sierra
4.3L Engine, 285 HP, 15/20 MPG

$33,6001 MSRP

2021 Sierra 3500HD 4WD Regular Cab, Long Bed Sierra
2021 Sierra 3500HD 4WD Regular Cab, Long Bed Sierra
4.3L Engine, 285 HP, 15/20 MPG

$34,3001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Standard Bed Sierra
2021 Sierra 3500HD 2WD Crew Cab, Standard Bed Sierra
4.3L Engine, 285 HP, 15/20 MPG

$36,0001 MSRP

2021 Sierra 3500HD 2WD Reg Cab 146
2021 Sierra 3500HD 2WD Reg Cab 146" WB, 60" CA
6.6L Engine, 401 HP

$36,2001 MSRP

2021 Sierra 3500HD 4WD Double Cab, Long Bed SLE
2021 Sierra 3500HD 4WD Double Cab, Long Bed SLE
4.3L Engine, 285 HP, 15/20 MPG

$36,9001 MSRP

2021 Sierra 3500HD 2WD Reg Cab 142
2021 Sierra 3500HD 2WD Reg Cab 142"
6.6L Engine, 401 HP

$37,1001 MSRP

2021 Sierra 3500HD 2WD Double Cab, Long Bed Sierra Dual Rear Wheel
2021 Sierra 3500HD 2WD Double Cab, Long Bed Sierra Dual Rear Wheel
6.6L Engine, 401 HP

$38,7001 MSRP

2021 Sierra 3500HD 4WD Regular Cab, Long Bed Sierra Dual Rear Wheel
2021 Sierra 3500HD 4WD Regular Cab, Long Bed Sierra Dual Rear Wheel
6.6L Engine, 401 HP

$39,0001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Standard Bed Sierra
2021 Sierra 3500HD 4WD Crew Cab, Standard Bed Sierra
4.3L Engine, 285 HP, 15/20 MPG

$39,3001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Standard Bed Sierra
2021 Sierra 3500HD 2WD Crew Cab, Standard Bed Sierra
6.6L Engine, 401 HP

$39,9001 MSRP

2021 Sierra 3500HD 2WD Double Cab, Long Bed SLE
2021 Sierra 3500HD 2WD Double Cab, Long Bed SLE
2.7L Engine, 310 HP, 18/21 MPG

$40,4001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Long Bed Sierra
2021 Sierra 3500HD 2WD Crew Cab, Long Bed Sierra
6.6L Engine, 401 HP

$40,8001 MSRP

2021 Sierra 3500HD 2WD Regular Cab, Long Bed SLE Dual Rear Wheel
2021 Sierra 3500HD 2WD Regular Cab, Long Bed SLE Dual Rear Wheel
6.6L Engine, 401 HP

$40,8001 MSRP

2021 Sierra 3500HD SLE
2021 Sierra 3500HD SLE
6.6L Engine, 401 HP

$41,0001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Long Bed SLE
2021 Sierra 3500HD 2WD Crew Cab, Long Bed SLE
6.6L Engine, 401 HP

$41,0001 MSRP

2021 Sierra 3500HD 4WD Double Cab, Long Bed Sierra
2021 Sierra 3500HD 4WD Double Cab, Long Bed Sierra
6.6L Engine, 401 HP

$41,3001 MSRP

2021 Sierra 3500HD 4WD Double Cab, Long Bed Sierra Dual Rear Wheel
2021 Sierra 3500HD 4WD Double Cab, Long Bed Sierra Dual Rear Wheel
6.6L Engine, 401 HP

$41,5001 MSRP

2021 Sierra 3500HD 2WD Double Cab, Long Bed Sierra
2021 Sierra 3500HD 2WD Double Cab, Long Bed Sierra
6.6L Engine, 401 HP

$42,7001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Standard Bed SLE
2021 Sierra 3500HD 2WD Crew Cab, Standard Bed SLE
2.7L Engine, 310 HP, 18/21 MPG

$42,8001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Long Bed Sierra
2021 Sierra 3500HD 4WD Crew Cab, Long Bed Sierra
6.6L Engine, 401 HP

$43,1001 MSRP

2021 Sierra 3500HD 2WD Double Cab, Long Bed SLE Dual Rear Wheel
2021 Sierra 3500HD 2WD Double Cab, Long Bed SLE Dual Rear Wheel
6.6L Engine, 401 HP

$43,2001 MSRP

2021 Sierra 3500HD 4WD Regular Cab, Long Bed SLE Dual Rear Wheel
2021 Sierra 3500HD 4WD Regular Cab, Long Bed SLE Dual Rear Wheel
6.6L Engine, 401 HP

$43,6001 MSRP

2021 Sierra 3500HD 4WD Regular Cab, Long Bed SLE
2021 Sierra 3500HD 4WD Regular Cab, Long Bed SLE
6.6L Engine, 401 HP

$43,8001 MSRP

2021 Sierra 3500HD 4WD Regular Cab, Long Bed SLE
2021 Sierra 3500HD 4WD Regular Cab, Long Bed SLE
6.6L Engine, 401 HP

$43,8001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Standard Bed SLE
2021 Sierra 3500HD 4WD Crew Cab, Standard Bed SLE
2.7L Engine, 310 HP, 18/21 MPG

$46,1001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Standard Bed SLT
2021 Sierra 3500HD 2WD Crew Cab, Standard Bed SLT
5.3L Engine, 355 HP, 16/21 MPG

$47,0001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Long Bed SLE
2021 Sierra 3500HD 4WD Crew Cab, Long Bed SLE
6.6L Engine, 401 HP

$47,6001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Standard Bed SLT
2021 Sierra 3500HD 4WD Crew Cab, Standard Bed SLT
5.3L Engine, 355 HP, 16/21 MPG

$50,5001 MSRP

2021 Sierra 3500HD 2WD Crew Cab, Long Bed SLT
2021 Sierra 3500HD 2WD Crew Cab, Long Bed SLT
6.6L Engine, 401 HP

$53,0001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Standard Bed AT4
2021 Sierra 3500HD 4WD Crew Cab, Standard Bed AT4
5.3L Engine, 355 HP, 16/21 MPG

$53,8001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Standard Bed Single Rear Wheel Denali
2021 Sierra 3500HD 4WD Crew Cab, Standard Bed Single Rear Wheel Denali
5.3L Engine, 355 HP, 16/21 MPG

$55,2001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Long Bed SLT
2021 Sierra 3500HD 4WD Crew Cab, Long Bed SLT
6.6L Engine, 401 HP

$55,8001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Long Bed AT4
2021 Sierra 3500HD 4WD Crew Cab, Long Bed AT4
6.6L Engine, 401 HP

$59,8001 MSRP

2021 Sierra 3500HD 4WD Crew Cab, Long Bed Single Rear Wheel DenaliDenali
2021 Sierra 3500HD 4WD Crew Cab, Long Bed Single Rear Wheel DenaliDenali
6.6L Engine, 401 HP

$66,3001 MSRP

1 The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Click here to see all GMC destination freight charges.