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GMC
Sierra 3500
2021
Used 2021 GMC Sierra 3500 for Sale
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264 Results
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
80,000
Est. Finance Payment
$1,377/mo.
See payment details
25,174 miles
Newly Listed
Certified 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
78,997
Est. Finance Payment
$1,315/mo.
See payment details
2,316 miles
GREAT PRICE
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg
105,000
11,183 miles
See estimated payment
Newly Listed
Certified 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
78,997
Est. Finance Payment
$1,315/mo.
See payment details
2,316 miles
GREAT PRICE
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Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  LPO, Hitch Pkg
78,297
12,595 miles
See estimated payment
GREAT PRICE
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  LPO, Hitch Pkg
73,336
54,560 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 SLT
SLT Convenience Pkg
72,491
16,776 miles
See estimated payment
Reduced Price
Used 2021 GMC Sierra 3500 4x4 Regular Cab
Fleet Convenience Pkg  •  Snow Plow Prep Pkg
43,971
25,189 miles
See estimated payment
GREAT PRICE
Used 2021 GMC Sierra 3500 4x4 Crew Cab
Gooseneck/5TH Wheel Pkg  •  Convenience Pkg
67,000
49,583 miles
See estimated payment
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  LPO, Hitch Pkg
75,512
14,069 miles
See estimated payment
GREAT PRICE
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Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  Heavy Duty Front Spring/Camper Pkg
74,599
21,302 miles
See estimated payment
GOOD PRICE
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  Heavy Duty Front Spring/Camper Pkg
74,499
20,226 miles
See estimated payment
GREAT PRICE
Used 2021 GMC Sierra 3500 4x4 Crew Cab
Convenience Pkg  •  Snow Plow Prep/Camper Pkg
73,754
48,540 miles
See estimated payment
Used 2021 GMC Sierra 3500 AT4
Gooseneck/5TH Wheel Pkg  •  LPO, Hitch Pkg
67,563
Est. Finance Payment
$1,146/mo.
See payment details
24,947 miles
GREAT PRICE
Used 2021 GMC Sierra 3500 SLE
SLE Value Pkg  •  SLE Convenience Pkg  •  Gooseneck/5TH Wheel Pkg  •  Driver Alert Pkg I  •  X31 Off-Road Pkg  •  LPO, Hitch Pkg  •  Snow Plow Prep/Camper Pkg
66,914
Est. Finance Payment
$1,043/mo.
See payment details
27,864 miles
GOOD PRICE
Reduced Price
Used 2021 GMC Sierra 3500 4x4 Crew Cab
Convenience Pkg  •  1SA Driver Alert Pkg I
65,988
Est. Finance Payment
$1,087/mo.
See payment details
11,263 miles
Reduced Price
Used 2021 GMC Sierra 3500 SLT
Texas SLT Premium Pkg  •  SLT Preferred Pkg  •  SLT Convenience Pkg  •  Driver Alert Pkg I  •  Snow Plow Prep/Camper Pkg
64,996
20,038 miles
See estimated payment
GREAT PRICE
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Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
80,000
Est. Finance Payment
$1,377/mo.
See payment details
25,174 miles
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
78,900
3,455 miles
See estimated payment
GOOD PRICE
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
76,999
29,229 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  LPO, Hitch Pkg
73,757
41,805 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  Heavy Duty Front Spring/Camper Pkg
67,694
66,033 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  LPO, Hitch Pkg
64,991
60,835 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
63,995
129,363 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 SLE
SLE Value Pkg  •  SLE Convenience Pkg  •  Gooseneck/5TH Wheel Pkg
61,500
63,885 miles
See estimated payment
Newly Listed
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg
58,460
110,786 miles
See estimated payment
Used 2021 GMC Sierra 3500 4x4 Crew Cab
Gooseneck/5TH Wheel Pkg  •  Convenience Pkg
67,412
23,565 miles
See estimated payment
Used 2021 GMC Sierra 3500 Denali
Denali Ultimate Pkg  •  Technology Pkg  •  Gooseneck/5TH Wheel Prep Pkg  •  LPO, Hitch Pkg
87,992
29,708 miles
See estimated payment
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1-25 of 264 Results
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Find Used 2021 GMC Cars for Sale by Model
Used 2021 GMC Acadia For Sale
1,241 for sale starting at $23,800
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394 for sale starting at $13,795
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397 for sale starting at $11,795
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9 for sale starting at $39,750
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1 for sale starting at $55,981
Used 2021 GMC Sierra 1500 For Sale
3,454 for sale starting at $21,950
Used 2021 GMC Sierra 2500 For Sale
608 for sale starting at $40,900
Used 2021 GMC Sierra 3500 For Sale
304 for sale starting at $43,971
View All Models
Find Used 2021 GMC Sierra 3500 Cars for Sale by City in
Austin
6 for sale starting at $54,988
Billings
8 for sale starting at $31,999
Birmingham
5 for sale starting at $64,999
Buffalo
17 for sale starting at $45,000
Burlington
5 for sale starting at $33,990
Charlotte
8 for sale starting at $12,500
Cheyenne
5 for sale starting at $48,995
Columbia
7 for sale starting at $47,990
Columbus
7 for sale starting at $43,900
Dallas
6 for sale starting at $21,900
Denver
10 for sale starting at $36,437
Houston
8 for sale starting at $19,257
Indianapolis
6 for sale starting at $45,590
Jacksonville
7 for sale starting at $58,700
Las Vegas
7 for sale starting at $35,934
Los Angeles
14 for sale starting at $35,934
Memphis
5 for sale starting at $67,995
Miami
5 for sale starting at $43,020
Minneapolis
5 for sale starting at $53,000
Nashville
8 for sale starting at $21,995
Phoenix
11 for sale starting at $54,790
Portland
12 for sale starting at $35,934
Salt Lake City
11 for sale starting at $45,000
View All Cities
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New GMC Sierra 3500 For Sale
3,040 for sale starting at $43,875
Certified GMC Sierra 3500 For Sale
121 for sale starting at $48,555