Used 2020 GMC Sierra 3500HD for Sale in Denver, CO
Denver Search Area
- Dealers in Area
- Sierra 3500HDs for Sale
Top Ranked Used 2018-2022 GMC Sierra 3500HDs near Denver
Ranked by Most Car for Your Money
Why should I trust CoPilot?
#1 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- $3,580 Price Drop
- Great Price - $8,314 Below Market
- Includes $21,344 Premium Upgrades

#2 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- Great Price - $6,686 Below Market
- Includes $17,504 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle

#3 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- Great Price - $6,480 Below Market
- Includes $13,308 Premium Upgrades
- CARFAX: One Owner, Clean Title

#4 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- $550 Price Drop
- Great Price - $6,113 Below Market
- Includes $17,728 Premium Upgrades
#5 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- $1,000 Price Drop
- Great Price - $12,694 Below Market
- Includes $21,072 Premium Upgrades
#6 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- $2,000 Price Drop
- Good Price - $2,907 Below Market
- Includes $16,452 Premium Upgrades
#7 2018-2022 GMC Sierra 3500HD
It’s an “A+” Buy
- $900 Price Drop
- Good Price - $2,299 Below Market
- Includes $8,048 Premium Upgrades
#8 2018-2022 GMC Sierra 3500HD
It’s an “A” Buy
- Good Price - $3,457 Below Market
- Includes $12,928 Premium Upgrades
- CARFAX: Clean Title, Not a rental or commercial vehicle
#9 2018-2022 GMC Sierra 3500HD
It’s an “A” Buy
- Good Price - $2,859 Below Market
- Includes $9,700 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#10 2018-2022 GMC Sierra 3500HD
It’s an “A” Buy
- $300 Price Drop
- Fair Price - $1,661 Below Market
- Includes $21,308 Premium Upgrades
#11 2018-2022 GMC Sierra 3500HD
It’s an “A” Buy
- $660 Price Drop
- Fair Price - $272 Below Market
- Includes $8,656 Premium Upgrades
#12 2018-2022 GMC Sierra 3500HD
It’s an “A” Buy
- $599 Price Drop
- Fair Price - $144 Below Market
- Includes $22,420 Premium Upgrades
#13 2018-2022 GMC Sierra 3500HD
It’s an “A” Buy
- $336 Price Drop
- Fair Price - $1,883 Above Market
- Includes $8,512 Premium Upgrades
#14 2018-2022 GMC Sierra 3500HD
It’s an “A-” Buy
- $8,599 Price Drop
- Fair Price - $1,269 Below Market
- Includes $13,188 Premium Upgrades
#15 2018-2022 GMC Sierra 3500HD
It’s an “A-” Buy
- Fair Price - $1,213 Below Market
- Includes $21,824 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#16 2018-2022 GMC Sierra 3500HD
It’s an “A-” Buy
- $6 Price Drop
- Fair Price - $1,176 Below Market
- Includes $8,952 Premium Upgrades
#17 2018-2022 GMC Sierra 3500HD
It’s an “A-” Buy
- Fair Price - $987 Below Market
- Includes $14,444 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#18 2018-2022 GMC Sierra 3500HD
It’s an “A-” Buy
- $1,492 Price Drop
- Fair Price - $29 Above Market
- Includes $8,752 Premium Upgrades
#19 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- Great Price - $6,694 Below Market
- Includes $18,304 Premium Upgrades
- CARFAX: One Owner, Clean Title, Not a rental or commercial vehicle
#20 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- Good Price - $3,220 Below Market
- Includes $14,069 Premium Upgrades
- CARFAX: One Owner, Clean Title
#21 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- Good Price - $2,967 Below Market
- Includes $13,792 Premium Upgrades
- CARFAX: One Owner, Clean Title
#22 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- $2,500 Price Drop
- Good Price - $2,941 Below Market
- Includes $8,407 Premium Upgrades
#23 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- Good Price - $2,787 Below Market
- Includes $14,156 Premium Upgrades
- CARFAX: One Owner, Clean Title
#24 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- $1 Price Drop
- Fair Price - $289 Above Market
- Includes $19,860 Premium Upgrades
#25 2018-2022 GMC Sierra 3500HD
It’s a “B+” Buy
- $6,000 Price Drop
- Fair Price - $588 Above Market
- Includes $13,008 Premium Upgrades
2020 GMC Sierra 3500HD
The Basics
Performance
Safety
CoPilot Star Rating
Summary
The Good Stuff
Available Trims [1]
- Heated Mirrors
- Security System
- Auxiliary Audio Input
- Bluetooth Connection
- Smartphone Integration
- Android Auto
- Apple CarPlay
- Back-Up Camera
- WiFi Hotspot
Available Packages [2]
CONVENIENCE PACKAGE
$825 Original MSRP
- Remote Keyless Entry
- tinted glass
- rear-window defogger
- outside power-adjustable vertical trailering with heated upper glass mirrors and cruise control
FLEET CONVENIENCE PACKAGE
$610 Original MSRP
- Remote Keyless Entry
- cruise control and outside power-adjustable vertical trailering with heated upper glass mirrors
Vehicle Dimensions
Headroom/Legroom
Front Seats
- Headroom: 43.03
- Legroom: 44.53
Back Seats
- Headroom: 40.12
- Legroom: 43.4
Available Drive Trains
Available Engines
Available Transmissions
Why Use CoPilot?
Shop and buy your next car with confidence. CoPilot searches every car at every dealer, every day, and ranks them based on what matters to you.
When you shop for a new or used car, CoPilot helps you know more. We search every car at every dealer so you don't have to, we give you data and insights you won't find anywhere else, and we rank every car so it's easy to find the best car at the best price.
When you're ready to buy your next car, CoPilot helps you make sure you never get taken advantage of at the dealership. Would you like to know more than the salesperson? CoPilot helps you avoid any tricks, traps, and scams. Know how and what you can negotiate. With CoPilot, you'll save time, money, and frustration.