1,290 Used Gmc Sierra for Sale Near Thornton, CO

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2020 GMC Sierra 4WD Crew Cab Standard Box Denali's photo

2020 GMC Sierra 4WD Crew Cab Standard Box Denali

155,653 mi.

119 days on market

1GT49REY4LF139091

$41,997
Ogden Motors
Berwyn, IL
2018 GMC Sierra 4WD Crew Cab Short Box SLE's photo

2018 GMC Sierra 4WD Crew Cab Short Box SLE

72,999 mi.

28 days on market

3GTU2MEC6JG249955

$20,950
Great Deal
Zara Auto Sales Inc
Denver, CO
4.3
2024 GMC Sierra 4WD Crew Cab Standard Box Denali's photo

2024 GMC Sierra 4WD Crew Cab Standard Box Denali

129,178 mi.

28 days on market

1GT49WEYXRF170966

$57,488
Good Deal
Johnson Auto Plaza
Brighton, CO
4.2
2017 GMC Sierra 4WD Crew Cab Short Box SLT's photo

2017 GMC Sierra 4WD Crew Cab Short Box SLT

121,094 mi.

28 days on market

3GTU2NEC3HG143687

$25,292
Fair Deal
South Colorado Motors
Colorado Springs, CO
4.7
2024 GMC Sierra 4WD Crew Cab Short Box Denali Ultimate's photo

2024 GMC Sierra 4WD Crew Cab Short Box Denali Ultimate

40,108 mi.

28 days on market

1GTUUHELXRZ184041

$58,503
Great Deal
Larry H Miller Chrysler Dodge Ram Fiat Denver
Denver, CO
4.0
2005 GMC Sierra -'s photo

2005 GMC Sierra -

161,719 mi.

28 days on market

2GTEK63N651222516

$8,999
Vista Ford Delta
Delta, CO
4.3
2015 GMC Sierra 4WD Double Cab SLE SWB's photo

2015 GMC Sierra 4WD Double Cab SLE SWB

209,555 mi.

29 days on market

1GTV2UEC6FZ157210

$12,320
Great DealSingle ownerClean title
Custom Cars West
Englewood, CO
4.6
2021 GMC Sierra 4WD Crew Cab Short Box AT4's photo

2021 GMC Sierra 4WD Crew Cab Short Box AT4

34,581 mi.

29 days on market

1GTP9EEL5MZ447395

$46,998
Fair Deal
Colorado Auto Finders
Centennial, CO
4.4
2022 GMC Sierra 4WD Crew Cab Short Box Elevation's photo

2022 GMC Sierra 4WD Crew Cab Short Box Elevation

137,817 mi.

29 days on market

3GTPUCEK2NG502865

$27,990
Good Deal
Colorado Auto Finders
Centennial, CO
4.4
2023 GMC Sierra 4WD Crew Cab Short Box Denali's photo

2023 GMC Sierra 4WD Crew Cab Short Box Denali

35,252 mi.

29 days on market

3GTUUGELXPG283711

$53,002
Good Deal
Weld County Garage
Greeley, CO
4.6
1986 GMC Sierra's photo

1986 GMC Sierra

58,058 mi.

29 days on market

1GTEK14H1GS516923

$22,900
Good Deal
Worldwide Vintage Autos
Denver, CO
4.5
2018 GMC Sierra 4WD Crew Cab Long Box's photo

2018 GMC Sierra 4WD Crew Cab Long Box

148,020 mi.

29 days on market

1GT42VCG5JF154963

$15,695
Great Deal
Ap Auto Brokers
Longmont, CO
4.0
2020 GMC Sierra 4WD Crew Cab Standard Box Denali's photo

2020 GMC Sierra 4WD Crew Cab Standard Box Denali

92,204 mi.

29 days on market

1GT49REYXLF303332

$51,298
Good DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2020 GMC Sierra Denali 4WD Crew Cab Standard Box's photo

2020 GMC Sierra Denali 4WD Crew Cab Standard Box

106,529 mi.

29 days on market

1GT19REY8LF321654

$49,995
Great DealClean title
Truck Kings
Denver, CO
4.2
2026 GMC Sierra 4WD Crew Cab Short Box AT4X's photo

2026 GMC Sierra 4WD Crew Cab Short Box AT4X

2,539 mi.

30 days on market

3GTUUFEL1TG219500

$74,220
Good Deal
Autonation Dodge Ram Broadway
Littleton, CO
4.0
2025 GMC Sierra 4WD Crew Cab Long Box DRW SLT's photo

2025 GMC Sierra 4WD Crew Cab Long Box DRW SLT

14,244 mi.

30 days on market

1GT4UUEYXSF164139

$71,099
Great Deal
Montrose Nissan
Montrose, CO
4.7
2017 GMC Sierra 4WD Double Cab Standard Box SLT's photo

2017 GMC Sierra 4WD Double Cab Standard Box SLT

145,695 mi.

30 days on market

1GTV2NEJ7HZ116351

$21,598
Good Deal
Mike Maroone Auto
Longmont, CO
4.4
2023 GMC Sierra 4WD Crew Cab Short Box AT4's photo

2023 GMC Sierra 4WD Crew Cab Short Box AT4

31,706 mi.

30 days on market

3GTUUEE80PG221248

$57,594
Fair DealSingle ownerClean title
Perkins Chevrolet Gmc
La Junta, CO
4.5
2022 GMC Sierra AT4 4WD Crew Cab Short Box's photo

2022 GMC Sierra AT4 4WD Crew Cab Short Box

64,670 mi.

30 days on market

1GTUUEET1NZ554463

$46,605
Fair Deal
Loveland Buick Gmc
Loveland, CO
4.4
2023 GMC Sierra 4WD Crew Cab Standard Box Pro's photo

2023 GMC Sierra 4WD Crew Cab Standard Box Pro

58,689 mi.

31 days on market

1GT49LEY5PF173690

$44,309
Fair Deal
Glenwood Springs Ford
Glenwood Springs, CO
4.4
2024 GMC Sierra 4WD Crew Cab Standard Box AT4's photo

2024 GMC Sierra 4WD Crew Cab Standard Box AT4

37,846 mi.

31 days on market

1GT49PEY2RF132458

$68,687
Good Deal
Stevinson Toyota West
Lakewood, CO
4.4
2024 GMC Sierra 4WD Crew Cab Short Box SLT's photo

2024 GMC Sierra 4WD Crew Cab Short Box SLT

54,642 mi.

31 days on market

3GTUUDE81RG116263

$47,491
Fair DealClean title
Vista Toyota
Casper, WY
4.7
2024 GMC Sierra 4WD Crew Cab Short Box AT4X's photo

2024 GMC Sierra 4WD Crew Cab Short Box AT4X

75,547 mi.

31 days on market

3GTUUFEL8RG135277

$56,899
Good DealSingle owner
Castle Rock Chrysler Dodge Jeep Ram
Castle Rock, CO
4.5
2022 GMC Sierra 4WD Crew Cab Standard Box SLE's photo

2022 GMC Sierra 4WD Crew Cab Standard Box SLE

94,569 mi.

31 days on market

1GT49MEY8NF134983

Contact Dealer
Single owner
Shortline Buick Gmc
Aurora, CO
4.0
2012 GMC Sierra 4WD Crew Cab 6.5ft SLT's photo

2012 GMC Sierra 4WD Crew Cab 6.5ft SLT

73,010 mi.

31 days on market

1GT121C85CF137362

$33,850
Fair Deal
Quicktime Motorsports Llc
Grand Junction, CO
4.3
2022 GMC Sierra 4WD Crew Cab Short Box SLT's photo

2022 GMC Sierra 4WD Crew Cab Short Box SLT

76,253 mi.

31 days on market

3GTU9DEL6NG111270

Contact Dealer
Autonation Buick Gmc West
Golden, CO
4.3
2017 GMC Sierra 4WD Crew Cab Short Box SLT's photo

2017 GMC Sierra 4WD Crew Cab Short Box SLT

122,426 mi.

31 days on market

3GTU2NEC4HG269685

$28,399
Fair Deal
Montrose Nissan
Montrose, CO
4.7
2024 GMC Sierra 4WD Crew Cab Long Box Denali Ultimate's photo

2024 GMC Sierra 4WD Crew Cab Long Box Denali Ultimate

25,437 mi.

31 days on market

1GT49XEY7RF454271

$79,389
Fair DealSingle owner
Markley Honda
Fort Collins, CO
4.6
2022 GMC Sierra 4WD Crew Cab Short Box Denali's photo

2022 GMC Sierra 4WD Crew Cab Short Box Denali

52,822 mi.

31 days on market

3GTUUGETXNG608144

$48,010
Fair Deal
Alpine Buick Gmc
Highlands Ranch, CO
4.3
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Find Used GMC Sierra in Thornton, CO

In the U.S., the GMC Sierra is available as Chassis Cab, Pickup, and Utility-Service Truck. The best choice typically depends on space needs and personal preference.