CoPilot AI-Assisted Car Shopping

 New Search
 Save
 Sort
 Share

Used 2021 GMC Sierra 2500HD for Sale in Denver, CO

Sierra 2500HDs for Sale at Dealers

Filters
Price
Year
Mileage
Trim
2023 GMC Sierra 2500HD Denali 4WD photo
Price Drop
2023 GMC Sierra 2500HD Denali 4WD Englewood, CO
White 6.6L V8 Engine
$49,998 81k miles
•••

#51 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aC” Buy

  • Good Price - $2,040 Below Market
  • Motivation to Negotiate - Very High
More details
2021 GMC Sierra 2500HD  4WD photo
12
2021 GMC Sierra 2500HD 4WD Cheyenne, WY
White 6.6L V8 Engine
$35,995 55.9k miles
•••

#12 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • Great Price - $3,948 Below Market
  • Includes $1,288 Premium Upgrades
  • CARFAX: One Owner
More details
2023 GMC Sierra 2500HD AT4 4WD photo
2
Price Drop
2023 GMC Sierra 2500HD AT4 4WD Lone Tree, CO
Blue 6.6L V8 Engine
$51,999 73.8k miles
•••

#2 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $1,991 Price Drop
  • Great Price - $7,212 Below Market
  • Includes $11,566 Premium Upgrades
More details
2021 GMC Sierra 2500HD SLE 4WD photo
2021 GMC Sierra 2500HD SLE 4WD Colorado Springs, CO
Silver 6.6L V8 Engine
$44,999 30.7k miles
•••

#48 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB-” Buy

  • Fair Price - $627 Above Market
  • Includes $676 Premium Upgrades
  • CARFAX: One Owner
More details
2023 GMC Sierra 2500HD SLT 4WD photo
11
Price Drop
2023 GMC Sierra 2500HD SLT 4WD Brighton, CO
White 6.6L V8 Engine
$56,886 32.5k miles
•••

#11 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $348 Price Drop
  • Great Price - $4,528 Below Market
  • Includes $17,611 Premium Upgrades
More details
2023 GMC Sierra 2500HD Denali 4WD photo
Price Drop
2023 GMC Sierra 2500HD Denali 4WD Denver, CO
Silver 6.6L V8 Engine
$64,691 35.3k miles
•••

#28 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $549 Price Drop
  • Fair Price - $324 Above Market
  • Includes $9,801 Premium Upgrades
More details
2020 GMC Sierra 2500HD Denali 4WD photo
22
Price Drop
2020 GMC Sierra 2500HD Denali 4WD Golden, CO
Black 6.6L V8 Engine
$56,839 33.9k miles
•••

#22 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $1,160 Price Drop
  • Good Price - $1,991 Below Market
  • Includes $12,881 Premium Upgrades
More details
2021 GMC Sierra 2500HD  4WD photo
Price Drop
2021 GMC Sierra 2500HD 4WD Colorado Springs, CO
White 6.6L V8 Engine
$31,710 98.2k miles
•••

#32 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB” Buy

  • $550 Price Drop
  • Good Price - $1,564 Below Market
  • Includes $1,132 Premium Upgrades
More details
2022 GMC Sierra 2500HD SLE 4WD photo
Price Drop
2022 GMC Sierra 2500HD SLE 4WD Littleton, CO
Silver 6.6L V8 Engine
$36,592 117.8k miles
•••

#52 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aC” Buy

  • $998 Price Drop
  • Fair Price - $413 Below Market
  • Motivation to Negotiate - Very High
More details
2020 GMC Sierra 2500HD SLT 4WD photo
2020 GMC Sierra 2500HD SLT 4WD Brighton, CO
Gray 6.6L V8 Engine
$43,488 108k miles
•••

#41 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB” Buy

  • Fair Price - $54 Below Market
  • Includes $9,331 Premium Upgrades
  • Dealer Rating - 4.2 stars
More details
2019 GMC Sierra 2500HD Denali 4WD photo
2019 GMC Sierra 2500HD Denali 4WD Colorado Springs, CO
Red 6.6L V8 Engine
$44,995 92.7k miles
•••

#35 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB” Buy

  • Fair Price - $1,295 Below Market
  • Includes $7,469 Premium Upgrades
  • Average Mileage
More details
2022 GMC Sierra 2500HD Denali 4WD photo
5
Price Drop
2022 GMC Sierra 2500HD Denali 4WD CO
White 6.6L V8 Engine
$57,888 61.5k miles
•••

#5 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $805 Price Drop
  • Great Price - $5,339 Below Market
  • Includes $10,293 Premium Upgrades
More details
2022 GMC Sierra 2500HD Denali 4WD photo
Price Drop
2022 GMC Sierra 2500HD Denali 4WD Centennial, CO
Black 6.6L V8 Engine
$39,999 162.3k miles
•••

#47 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB-” Buy

  • $500 Price Drop
  • Fair Price - $1,194 Below Market
  • Includes $3,408 Premium Upgrades
More details
2021 GMC Sierra 2500HD Denali 4WD photo
13
2021 GMC Sierra 2500HD Denali 4WD Cheyenne, WY
Red 6.6L V8 Engine
$55,995 47.9k miles
•••

#13 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • Great Price - $3,863 Below Market
  • Includes $11,565 Premium Upgrades
  • Very Low Mileage
More details
2022 GMC Sierra 2500HD AT4 4WD photo
20
2022 GMC Sierra 2500HD AT4 4WD Northglenn, CO
Black 6.6L V8 Engine
$61,789 38.6k miles
•••

#20 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • Good Price - $2,455 Below Market
  • Includes $13,860 Premium Upgrades
  • CARFAX: One Owner
More details
2023 GMC Sierra 2500HD Denali 4WD photo
6
2023 GMC Sierra 2500HD Denali 4WD Brighton, CO
Black 6.6L V8 Engine
$59,988 66.7k miles Certified
•••

#6 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • Great Price - $5,273 Below Market
  • Includes $11,541 Premium Upgrades
  • Motivation to Negotiate - Increasing
More details
2022 GMC Sierra 2500HD AT4 4WD photo
3
2022 GMC Sierra 2500HD AT4 4WD Denver, CO
Black 6.6L V8 Engine
$48,900 75k miles
•••

#3 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • Great Price - $6,583 Below Market
  • Includes $11,783 Premium Upgrades
  • Motivation to Negotiate - Increasing
More details
2022 GMC Sierra 2500HD AT4 4WD photo
Price Drop
2022 GMC Sierra 2500HD AT4 4WD Colorado Springs, CO
Black 6.6L V8 Engine
$52,010 92.5k miles
•••

#37 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB” Buy

  • $889 Price Drop
  • Fair Price - $1,036 Below Market
  • Includes $10,056 Premium Upgrades
More details
2023 GMC Sierra 2500HD Denali 4WD photo
10
Price Drop
2023 GMC Sierra 2500HD Denali 4WD Englewood, CO
White 6.6L V8 Engine
$59,997 46.9k miles
•••

#10 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • Great Price - $4,564 Below Market
  • Includes $10,644 Premium Upgrades
  • CARFAX: One Owner
More details
2022 GMC Sierra 2500HD Pro 4WD photo
Price Drop
2022 GMC Sierra 2500HD Pro 4WD Golden, CO
White 6.6L V8 Engine
$39,068 33.7k miles
•••

#54 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aC” Buy

  • $905 Price Drop
  • Includes $1,288 Premium Upgrades
  • Motivation to Negotiate - Increasing
More details
2021 GMC Sierra 2500HD Denali 4WD photo
Price Drop
2021 GMC Sierra 2500HD Denali 4WD Denver, CO
White 6.6L V8 Engine
$46,995 165.6k miles
•••

#66 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aD-” Buy

  • $1,000 Price Drop
  • Includes $9,056 Premium Upgrades
  • Motivation to Negotiate - Very High
More details
2022 GMC Sierra 2500HD AT4 4WD photo
7
Price Drop
2022 GMC Sierra 2500HD AT4 4WD Loveland, CO
Black 6.6L V8 Engine
$43,250 158.6k miles
•••

#7 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $505 Price Drop
  • Great Price - $5,096 Below Market
  • Includes $14,726 Premium Upgrades
More details
2020 GMC Sierra 2500HD Denali 4WD photo
14
Price Drop
2020 GMC Sierra 2500HD Denali 4WD Colorado Springs, CO
Black 6.6L V8 Engine
$48,298 94.7k miles
•••

#14 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aB+” Buy

  • $612 Price Drop
  • Great Price - $3,831 Below Market
  • Includes $10,595 Premium Upgrades
More details
2023 GMC Sierra 2500HD Denali 4WD photo
Price Drop
2023 GMC Sierra 2500HD Denali 4WD Denver, CO
Black 6.6L V8 Engine
$64,995 77k miles
•••

#56 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aC-” Buy

  • $1,000 Price Drop
  • Includes $10,611 Premium Upgrades
  • Motivation to Negotiate - High
More details
2019 GMC Sierra 2500HD Denali 4WD photo
2019 GMC Sierra 2500HD Denali 4WD Denver, CO
White 6.6L V8 Engine
$47,900 115.4k miles
•••

#64 2019-2023 GMC Sierra 2500HD

CoPilot AI: It’s aD” Buy

  • Includes $7,581 Premium Upgrades
  • Dealer Rating - 4.9 stars
More details
1-25 of 87 results

2021 GMC Sierra 2500HD

Three-Quarter-Ton Truck
Seats
3
Dimensions

© 2026 CoPilot. All Rights Reserved.