CoPilot AI-Assisted Car Shopping

 New Search
 Save
 Sort
 Share

Used 2018 GMC Sierra 2500HD for Sale in Phoenix, AZ

Sierra 2500HDs for Sale at Dealers

Filters
Price
Year
Mileage
Trim
2016 GMC Sierra 2500HD SLT RWD photo
25
Price Drop
2016 GMC Sierra 2500HD SLT RWD • Mesa, AZ
Black • 6.6L V8 Engine
$37,900 • 120.7k miles
•••
More details
2019 GMC Sierra 2500HD Denali 4WD photo
5
2019 GMC Sierra 2500HD Denali 4WD • Phoenix, AZ
Silver • 6.6L V8 Engine
$42,000 • 115.1k miles
•••

#5 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • Good Price - $2,672 Below Market
  • Includes $6,745 Premium Upgrades
  • Motivation to Negotiate - Increasing
More details
2018 GMC Sierra 2500HD 4WD photo
4
Price Drop
2018 GMC Sierra 2500HD 4WD • Glendale, AZ
Silver • 6.6L V8 Engine
$29,591 • 93.9k miles
•••

#4 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $901 Price Drop
  • Great Price - $3,345 Below Market
  • Includes $7,014 Premium Upgrades
More details
2016 GMC Sierra 2500HD Denali 4WD photo
22
2016 GMC Sierra 2500HD Denali 4WD • Phoenix, AZ
Black • 6.6L V8 Engine
$44,875 • 112k miles
•••

#22 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “D” Buy

  • Includes $7,346 Premium Upgrades
  • Motivation to Negotiate - Increasing
  • Below Average Mileage
More details
2020 GMC Sierra 2500HD Denali 4WD photo
21
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Glendale, AZ
Gray • 6.6L V8 Engine
$73,516 • 45.8k miles
•••

#21 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “D+” Buy

  • $1,400 Price Drop
  • Includes $15,260 Premium Upgrades
  • CARFAX: One Owner
More details
2020 GMC Sierra 2500HD Denali 4WD photo
23
2020 GMC Sierra 2500HD Denali 4WD • Oracle, AZ
White • 6.6L V8 Engine
$56,900 • 96.6k miles
•••

#23 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “D” Buy

  • Includes $10,903 Premium Upgrades
  • CARFAX: One Owner
  • Dealer Rating - 4.7 stars
More details
2020 GMC Sierra 2500HD Denali 4WD photo
10
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Prescott, AZ
White • 6.6L V8 Engine
$59,000 • 63.1k miles
•••

#10 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $700 Price Drop
  • Fair Price - $1,607 Below Market
  • Includes $15,947 Premium Upgrades
More details
2020 GMC Sierra 2500HD AT4 4WD photo
15
2020 GMC Sierra 2500HD AT4 4WD • Tempe, AZ
Black • 6.6L V8 Engine
$45,999 • 129k miles
•••

#15 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B” Buy

  • Fair Price - $382 Below Market
  • Includes $13,000 Premium Upgrades
  • Dealer Rating - 4.9 stars
More details
2016 GMC Sierra 2500HD Denali 4WD photo
13
Price Drop
2016 GMC Sierra 2500HD Denali 4WD • Phoenix, AZ
Black • 6.6L V8 Engine
$43,999 • 83.5k miles
•••

#13 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $500 Price Drop
  • Fair Price - $148 Below Market
  • Includes $7,005 Premium Upgrades
More details
2019 GMC Sierra 2500HD Denali 4WD photo
18
2019 GMC Sierra 2500HD Denali 4WD • Gilbert, AZ
White • 6.6L V8 Engine
$49,450 • 81.6k miles
•••

#18 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “C+” Buy

  • Fair Price - $235 Above Market
  • Below Average Mileage
  • Dealer Rating - 4.4 stars
More details
2020 GMC Sierra 2500HD Denali 4WD photo
2
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Peoria, AZ
Black • 6.6L V8 Engine
$62,469 • 23k miles
•••

#2 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $5,064 Price Drop
  • Great Price - $5,630 Below Market
  • Includes $9,796 Premium Upgrades
More details
2019 GMC Sierra 2500HD SLE 4WD photo
9
Price Drop
2019 GMC Sierra 2500HD SLE 4WD • Prescott, AZ
Silver • 6.6L V8 Engine
$39,500 • 61.9k miles
•••

#9 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $2,350 Price Drop
  • Good Price - $2,151 Below Market
  • Includes $8,121 Premium Upgrades
More details
2018 GMC Sierra 2500HD SLE 4WD photo
24
2018 GMC Sierra 2500HD SLE 4WD • Mesa, AZ
Black • 6.0L V8 Engine
$44,888 • 52.3k miles
•••

#24 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “D-” Buy

  • Motivation to Negotiate - Very High
  • Very Low Mileage
More details
2020 GMC Sierra 2500HD Denali 4WD photo
11
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Scottsdale, AZ
Black • 6.6L V8 Engine
$66,118 • 29.5k miles
•••

#11 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $380 Price Drop
  • Fair Price - $937 Below Market
  • Includes $12,592 Premium Upgrades
More details
2020 GMC Sierra 2500HD AT4 4WD photo
16
Price Drop
2020 GMC Sierra 2500HD AT4 4WD • Mesa, AZ
Red • 6.6L V8 Engine
$49,500 • 99.4k miles
•••

#16 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B” Buy

  • $495 Price Drop
  • Fair Price - $109 Below Market
  • Includes $14,758 Premium Upgrades
More details
2020 GMC Sierra 2500HD Denali 4WD photo
14
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Glendale, AZ
White • 6.6L V8 Engine
$67,490 • 42.6k miles
•••

#14 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $1,500 Price Drop
  • Fair Price - $1,088 Above Market
  • Includes $14,824 Premium Upgrades
More details
2019 GMC Sierra 2500HD SLT 4WD photo
20
2019 GMC Sierra 2500HD SLT 4WD • Mesa, AZ
Black • 6.6L V8 Engine
$49,991 • 53.2k miles
•••

#20 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “D+” Buy

  • Includes $4,269 Premium Upgrades
  • Very Low Mileage
  • Dealer Rating - 4.3 stars
More details
2020 GMC Sierra 2500HD Denali 4WD photo
7
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Peoria, AZ
Red • 6.6L V8 Engine
$57,599 • 63.6k miles
•••

#7 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $978 Price Drop
  • Good Price - $2,290 Below Market
  • Includes $13,111 Premium Upgrades
More details
2020 GMC Sierra 2500HD Denali 4WD photo
6
Price Drop
2020 GMC Sierra 2500HD Denali 4WD • Scottsdale, AZ
White • 6.6L V8 Engine
$60,991 • 49.8k miles
•••

#6 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • $194 Price Drop
  • Good Price - $2,298 Below Market
  • Includes $14,140 Premium Upgrades
More details
2017 GMC Sierra 2500HD Denali 4WD photo
1
2017 GMC Sierra 2500HD Denali 4WD • Phoenix, AZ
White • 6.6L V8 Engine
$46,900 • 71.4k miles
•••

#1 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • Great Price - $6,401 Below Market
  • Includes $8,607 Premium Upgrades
  • Very Low Mileage
More details
2016 GMC Sierra 2500HD Denali 4WD photo
3
2016 GMC Sierra 2500HD Denali 4WD • Phoenix, AZ
White • 6.6L V8 Engine
$32,991 • 149k miles
•••

#3 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • Great Price - $4,386 Below Market
  • Includes $6,549 Premium Upgrades
  • Dealer Rating - 4.3 stars
More details
2020 GMC Sierra 2500HD Denali 4WD photo
19
2020 GMC Sierra 2500HD Denali 4WD • Scottsdale, AZ
White • 6.6L V8 Engine
$55,991 • 76.6k miles
•••

#19 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “C” Buy

  • Includes $7,037 Premium Upgrades
  • Below Average Mileage
  • Dealer Rating - 4.3 stars
More details
2017 GMC Sierra 2500HD SLE RWD photo
2017 GMC Sierra 2500HD SLE RWD • Gilbert, AZ
Brown • 6.0L V8 Engine
$33,000 • 42k miles
•••
More details
2019 GMC Sierra 2500HD Denali 4WD photo
8
2019 GMC Sierra 2500HD Denali 4WD • Mesa, AZ
White • 6.6L V8 Engine
$42,995 • 115.5k miles
•••

#8 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • Good Price - $2,207 Below Market
  • Includes $7,356 Premium Upgrades
  • CARFAX: One Owner
More details
2018 GMC Sierra 2500HD Denali 4WD photo
12
2018 GMC Sierra 2500HD Denali 4WD • Scottsdale, AZ
Silver • 6.6L V8 Engine
$47,988 • 89.4k miles
•••

#12 2016-2020 GMC Sierra 2500HD

CoPilot AI: It’s a “B+” Buy

  • Fair Price - $469 Below Market
  • Includes $7,751 Premium Upgrades
  • Below Average Mileage
More details
1-25 of 34 results
HomeGMCSierra 2500HD

2018 GMC Sierra 2500HD

Three-Quarter-Ton Truck
Seats
6
NHTSA Rating Summary
Copilot Rating
Dimensions
Most Popular Models like Sierra 2500HD
GMC Sierra 2500HD near Phoenix, AZ
Other Years
Research More Models
View more Crew Cab Pickups

© 2026 CoPilot. All Rights Reserved.