Used 2018 GMC Sierra 3500HD for Sale in Denver, CO
Sierra 3500HDs for Sale at Dealers
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Year
Mileage
Trim

12
2016 GMC Sierra 3500HD 4WD • Loveland, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$31,693 • 134.9k miles
•••
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9
2019 GMC Sierra 3500HD Denali 4WD • Golden, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$45,802 • 96.6k miles
•••
#9 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “C-” Buy
- $697 Price Drop
- Includes $1,331 Premium Upgrades
- Motivation to Negotiate - Increasing
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1
2020 GMC Sierra 3500HD 4WD • Lakewood, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$32,000 • 105.7k miles
•••
#1 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “B+” Buy
- $1,000 Price Drop
- Great Price - $6,900 Below Market
- Includes $7,879 Premium Upgrades
More details

8
2020 GMC Sierra 3500HD Denali 4WD • Denver, CO
6.6L V8 Engine
6.6L V8 Engine
$49,999 • 105.3k miles
•••
#8 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “C” Buy
- Includes $6,032 Premium Upgrades
- Motivation to Negotiate - Increasing
- Dealer Rating - 4.5 stars
More details
4
2018 GMC Sierra 3500HD Denali 4WD • Kiowa, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$54,800 • 54.3k miles
•••
#4 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “B+” Buy
- Good Price - $3,127 Below Market
- Includes $10,671 Premium Upgrades
- Very Low Mileage
More details
2
2017 GMC Sierra 3500HD Denali 4WD • Brighton, CO
Silver • 6.6L V8 Engine
Silver • 6.6L V8 Engine
$42,237 • 109.8k miles
•••
#2 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “B+” Buy
- $267 Price Drop
- Great Price - $4,776 Below Market
- Includes $7,384 Premium Upgrades
More details
10
2017 GMC Sierra 3500HD Denali 4WD • Longmont, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$50,999 • 71.3k miles
•••
#10 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “D-” Buy
- $1,000 Price Drop
- Motivation to Negotiate - High
- Very Low Mileage
More details
7
2019 GMC Sierra 3500HD Denali 4WD • Colorado Springs, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$49,891 • 113.1k miles
•••
#7 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “C” Buy
- $100 Price Drop
- Includes $8,008 Premium Upgrades
- Dealer Rating - 4.2 stars
More details
13
2017 GMC Sierra 3500HD 4WD • Loveland, CO
6.6L V8 Engine
6.6L V8 Engine
$33,693 • 145k miles
•••
More details
3
2017 GMC Sierra 3500HD Denali 4WD • Castle Rock, CO
Black • 6.6L V8 Engine
Black • 6.6L V8 Engine
$35,900 • 160.8k miles
•••
#3 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “B+” Buy
- $200 Price Drop
- Great Price - $4,134 Below Market
- Includes $6,633 Premium Upgrades
More details
6
2017 GMC Sierra 3500HD SLT 4WD • Loveland, CO
Silver • 6.6L V8 Engine
Silver • 6.6L V8 Engine
$36,797 • 161.4k miles
•••
#6 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “B” Buy
- Fair Price - $994 Below Market
- Includes $7,486 Premium Upgrades
- CARFAX: One Owner
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5
2020 GMC Sierra 3500HD Denali 4WD • Littleton, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$41,816 • 108.6k miles
•••
#5 2016-2020 GMC Sierra 3500HD
CoPilot AI: It’s a “B+” Buy
- $775 Price Drop
- Great Price - $3,124 Below Market
- Includes $4,542 Premium Upgrades
More details
2018 GMC Sierra 3500HD Denali 4WD • Brighton, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$43,100 • 97.2k miles
•••
Not Ranked
CoPilot AI: It’s a “B+” Buy
- $400 Price Drop
- Great Price - $6,166 Below Market
- Includes $8,171 Premium Upgrades
More details
2020 GMC Sierra 3500HD Denali 4WD • Brighton, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$42,400 • 133k miles
•••
Not Ranked
CoPilot AI: It’s a “B+” Buy
- Great Price - $2,908 Below Market
- Includes $9,170 Premium Upgrades
More details
2019 GMC Sierra 3500HD Denali 4WD • Brighton, CO
Silver • 6.6L V8 Engine
Silver • 6.6L V8 Engine
$42,980 • 124.3k miles
•••
Not Ranked
CoPilot AI: It’s a “B+” Buy
- Good Price - $1,651 Below Market
- Includes $6,894 Premium Upgrades
- Motivation to Negotiate - Increasing
More details
2017 GMC Sierra 3500HD Denali 4WD • Brighton, CO
Black • 6.6L V8 Engine
Black • 6.6L V8 Engine
$41,400 • 137.2k miles
•••
Not Ranked
CoPilot AI: It’s a “B+” Buy
- $300 Price Drop
- Fair Price - $464 Below Market
- Includes $6,171 Premium Upgrades
More details
2019 GMC Sierra 3500HD Denali 4WD • CO
Black • 6.6L V8 Engine
Black • 6.6L V8 Engine
$44,998 • 125.9k miles
•••
Not Ranked
CoPilot AI: It’s a “B+” Buy
- Fair Price - $26 Above Market
- Includes $6,733 Premium Upgrades
- Dealer Rating - 4.3 stars
More details
2020 GMC Sierra 3500HD SLT 4WD • Fort Collins, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$54,775 • 68.6k miles
•••
Not Ranked
CoPilot AI: It’s a “B+” Buy
- $10 Price Drop
- Fair Price - $580 Above Market
- Includes $12,413 Premium Upgrades
More details
2018 GMC Sierra 3500HD SLT 4WD • Commerce City, CO
White • 6.6L V8 Engine
White • 6.6L V8 Engine
$41,700 • 130k miles
•••
Not Ranked
CoPilot AI: It’s a “C-” Buy
- Includes $3,439 Premium Upgrades
- Motivation to Negotiate - Increasing
- Dealer Rating - 4.7 stars
More details
2018 GMC Sierra 3500HD
One-Ton Truck
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