• Denali
  • SLE
  • SLT
  • Work Truck
  • SL
  • Well-Equipped
  • Great Deal
  • 4WD
  • Automatic
  • Diesel
  • Heated Seats
  • Good Deal
  • CD (Single Disc)
  • Keyless Entry
  • Navigation System
  • White
  • One Owner
  • Black
  • Flexible-Fuel
  • 2015
  • MP3
  • 2013
  • Handsfree/Bluetooth Integration
  • Lower Than Average Mileage
  • Gray
  • Gasoline
  • 2012
  • 2011
  • Low Mileage
  • 2014
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  • 2017
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  • 2005
  • Going Fast
  • 2007
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  • 2006
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  • 2002
  • 2010
  • Blue
  • 2003
  • RWD
  • Red
  • 2004
  • Certified Pre-Owned
  • Bronze
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Price Range

$0 $60,000+

Max Mileage

New $80,000+

MPG

Min 14 Max 50

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138 Results for

Used GMC Sierra 2500HD For Sale in Longmont, CO

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Photo 1:  2011 GMC Sierra 2500HD Denali in Centennial, CO exterior view from front driver's side
Photo 2:  2011 GMC Sierra 2500HD Denali in Centennial, CO
Photo 3: interior dashboard and console 2011 GMC Sierra 2500HD Denali in Centennial, CO
Photo 4:  2011 GMC Sierra 2500HD Denali in Centennial, CO front view of grill, headlights, hood and windshield
Photo 5:  2011 GMC Sierra 2500HD Denali in Centennial, CO exterior view from rear passenger side

Automatic / 4WD / 8 Cyl

  • Dealer Page
  • Call
  • Get Directions
$36,839

2011 GMC Sierra 2500HD Denali

109,798 miles / Centennial, CO

Photo 1: Deep Garnet Metallic 2016 GMC Sierra 2500HD Denali in Aurora, CO exterior view from front driver's side
Photo 2: Deep Garnet Metallic 2016 GMC Sierra 2500HD Denali in Aurora, CO
Photo 3: Deep Garnet Metallic 2016 GMC Sierra 2500HD Denali in Aurora, CO exterior view of driver's side
Photo 4: Deep Garnet Metallic 2016 GMC Sierra 2500HD Denali in Aurora, CO exterior view from rear passenger side
Photo 5: Deep Garnet Metallic 2016 GMC Sierra 2500HD Denali in Aurora, CO view of rear bumper

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$58,900

2016 GMC Sierra 2500HD Denali

27,319 miles / Aurora, CO

Photo 1: Summit White 2014 GMC Sierra 2500HD Work Truck in Aurora, CO exterior view from front driver's side
Photo 2: Summit White 2014 GMC Sierra 2500HD Work Truck in Aurora, CO
Photo 3: Summit White 2014 GMC Sierra 2500HD Work Truck in Aurora, CO exterior view of driver's side
Photo 4: Summit White 2014 GMC Sierra 2500HD Work Truck in Aurora, CO exterior view from rear passenger side
Photo 5: Summit White 2014 GMC Sierra 2500HD Work Truck in Aurora, CO view of rear bumper

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$34,900

2014 GMC Sierra 2500HD Work Truck

85,647 miles / Aurora, CO

Photo 1:  2002 GMC Sierra 2500HD in Englewood, CO exterior view from front driver's side
Photo 2:  2002 GMC Sierra 2500HD in Englewood, CO
Photo 3: cockpit view from driver’s seat 2002 GMC Sierra 2500HD in Englewood, CO
Photo 4: cockpit view from driver’s seat 2002 GMC Sierra 2500HD in Englewood, CO
Photo 5: interior dashboard and console 2002 GMC Sierra 2500HD in Englewood, CO

Automatic / 4WD / 8 Cyl

  • Dealer Page
  • Call
  • Get Directions
$19,287

2002 GMC Sierra 2500HD

144,937 miles / Englewood, CO

Photo 1: 2011 GMC Sierra 2500HD Work Truck in Fort Collins, CO
Photo 2: 2011 GMC Sierra 2500HD Work Truck in Fort Collins, CO
Photo 3: 2011 GMC Sierra 2500HD Work Truck in Fort Collins, CO
Photo 4: 2011 GMC Sierra 2500HD Work Truck in Fort Collins, CO
Photo 5: 2011 GMC Sierra 2500HD Work Truck in Fort Collins, CO

Automatic / 4WD / 8 Cyl

  • Dealer Page
  • Call
  • Get Directions
$17,988

2011 GMC Sierra 2500HD Work Truck

119,875 miles / Fort Collins, CO

Photo 1:  2011 GMC Sierra 2500HD SLE in Wheat Ridge, CO exterior view from front driver's side
Photo 2:  2011 GMC Sierra 2500HD SLE in Wheat Ridge, CO
Photo 3: interior dashboard and console 2011 GMC Sierra 2500HD SLE in Wheat Ridge, CO
Photo 4:  2011 GMC Sierra 2500HD SLE in Wheat Ridge, CO exterior view of driver's side
Photo 5:  2011 GMC Sierra 2500HD SLE in Wheat Ridge, CO exterior view of driver's side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$17,999

2011 GMC Sierra 2500HD SLE

158,296 miles / Wheat Ridge, CO

Photo 1: Dark Slate Metallic 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view from front driver's side
Photo 2: Dark Slate Metallic 2017 GMC Sierra 2500HD SLE in Aurora, CO
Photo 3: Dark Slate Metallic 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view of driver's side
Photo 4: Dark Slate Metallic 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view from rear passenger side
Photo 5: Dark Slate Metallic 2017 GMC Sierra 2500HD SLE in Aurora, CO view of rear bumper

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$49,587

2017 GMC Sierra 2500HD SLE

19 miles / Aurora, CO

Photo 1: Summit White 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view from front driver's side
Photo 2: Summit White 2017 GMC Sierra 2500HD SLE in Aurora, CO
Photo 3: Summit White 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view of driver's side
Photo 4: Summit White 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view from rear passenger side
Photo 5: Summit White 2017 GMC Sierra 2500HD SLE in Aurora, CO view of rear bumper

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$62,572

2017 GMC Sierra 2500HD SLE

20 miles / Aurora, CO

Photo 1: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO exterior view from front driver's side
Photo 2: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO
Photo 3: cockpit view from driver’s seat 2016 GMC Sierra 2500HD Denali in Denver, CO
Photo 4: interior dashboard and console 2016 GMC Sierra 2500HD Denali in Denver, CO
Photo 5: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$58,991

2016 GMC Sierra 2500HD Denali

12,258 miles / Denver, CO

Photo 1: Summit White 2014 GMC Sierra 2500HD SLE in Aurora, CO exterior view from front driver's side
Photo 2: Summit White 2014 GMC Sierra 2500HD SLE in Aurora, CO
Photo 3: interior dashboard and console 2014 GMC Sierra 2500HD SLE in Aurora, CO
Photo 4: Summit White 2014 GMC Sierra 2500HD SLE in Aurora, CO exterior view of passenger side
Photo 5: Summit White 2014 GMC Sierra 2500HD SLE in Aurora, CO exterior view from rear driver's side

Automatic / 4WD / 8 Cyl

  • Dealer Page
  • Call
  • Get Directions
$26,990

2014 GMC Sierra 2500HD SLE

102,881 miles / Aurora, CO

Photo 1: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO exterior view from front driver's side
Photo 2: cockpit view from driver’s seat 2016 GMC Sierra 2500HD Denali in Denver, CO
Photo 3: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO exterior view from rear passenger side
Photo 4: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO front view of grill, headlights, hood and windshield
Photo 5: Onyx Black 2016 GMC Sierra 2500HD Denali in Denver, CO exterior view of passenger side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$53,999

2016 GMC Sierra 2500HD Denali

1,388 miles / Denver, CO

Photo 1:  2006 GMC Sierra 2500HD in Loveland, CO exterior view from front driver's side
Photo 2:  2006 GMC Sierra 2500HD in Loveland, CO
Photo 3: cockpit view from driver’s seat 2006 GMC Sierra 2500HD in Loveland, CO
Photo 4: cockpit view from driver’s seat 2006 GMC Sierra 2500HD in Loveland, CO
Photo 5:  2006 GMC Sierra 2500HD in Loveland, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl

  • Dealer Page
  • Call
  • Get Directions
$24,245

2006 GMC Sierra 2500HD

124,605 miles / Loveland, CO

Photo 1:  2013 GMC Sierra 2500HD Work Truck in Greeley, CO
Photo 2: cockpit view from driver’s seat 2013 GMC Sierra 2500HD Work Truck in Greeley, CO
Photo 3: 2013 GMC Sierra 2500HD Work Truck with  in Greeley, CO
Photo 4: 2013 GMC Sierra 2500HD Work Truck with  in Greeley, CO
Photo 5: 2013 GMC Sierra 2500HD Work Truck in Greeley, CO

Automatic / 4WD / 8 Cyl

  • Get Directions
$31,300

2013 GMC Sierra 2500HD Work Truck

105,839 miles / Greeley, CO

Photo 1: Iridium Metallic 2015 GMC Sierra 2500HD Denali in Brighton, CO exterior view from front driver's side
Photo 2: interior dashboard and console 2015 GMC Sierra 2500HD Denali in Brighton, CO
Photo 3: 2015 GMC Sierra 2500HD Denali with  in Brighton, CO
Photo 4: Iridium Metallic 2015 GMC Sierra 2500HD Denali in Brighton, CO front view of grill, headlights, hood and windshield
Photo 5: Iridium Metallic 2015 GMC Sierra 2500HD Denali in Brighton, CO exterior view from rear driver's side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$56,987

2015 GMC Sierra 2500HD Denali

35,798 miles / Brighton, CO

Photo 1:  2005 GMC Sierra 2500HD SLE in Greeley, CO
Photo 2: cockpit view from driver’s seat 2005 GMC Sierra 2500HD SLE in Greeley, CO
Photo 3: 2005 GMC Sierra 2500HD SLE with  in Greeley, CO
Photo 4: 2005 GMC Sierra 2500HD SLE with  in Greeley, CO
Photo 5: 2005 GMC Sierra 2500HD SLE with  in Greeley, CO

Automatic / 4WD / 8 Cyl

  • Get Directions
$19,200

2005 GMC Sierra 2500HD SLE

173,009 miles / Greeley, CO

Photo 1: Summit White 2015 GMC Sierra 2500HD Denali in Greeley, CO exterior view from front driver's side
Photo 2: Summit White 2015 GMC Sierra 2500HD Denali in Greeley, CO
Photo 3: Summit White 2015 GMC Sierra 2500HD Denali in Greeley, CO exterior view of driver's side
Photo 4: Summit White 2015 GMC Sierra 2500HD Denali in Greeley, CO exterior view from rear passenger side
Photo 5: Summit White 2015 GMC Sierra 2500HD Denali in Greeley, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$54,832

2015 GMC Sierra 2500HD Denali

46,999 miles / Greeley, CO

Photo 1:  2012 GMC Sierra 2500HD Work Truck in Greeley, CO
Photo 2: cockpit view from driver’s seat 2012 GMC Sierra 2500HD Work Truck in Greeley, CO
Photo 3: 2012 GMC Sierra 2500HD Work Truck with  in Greeley, CO
Photo 4: 2012 GMC Sierra 2500HD Work Truck in Greeley, CO
Photo 5: 2012 GMC Sierra 2500HD Work Truck in Greeley, CO

Automatic / 4WD / 8 Cyl

  • Get Directions
$21,500

2012 GMC Sierra 2500HD Work Truck

139,479 miles / Greeley, CO

Photo 1:  2013 GMC Sierra 2500HD Denali in Boulder, CO exterior view from front driver's side
Photo 2:  2013 GMC Sierra 2500HD Denali in Boulder, CO
Photo 3: interior dashboard and console 2013 GMC Sierra 2500HD Denali in Boulder, CO
Photo 4:  2013 GMC Sierra 2500HD Denali in Boulder, CO exterior view of driver's side
Photo 5:  2013 GMC Sierra 2500HD Denali in Boulder, CO exterior view from rear passenger side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$43,999

2013 GMC Sierra 2500HD Denali

70,258 miles / Boulder, CO

Photo 1:  2013 GMC Sierra 2500HD SLT in Greeley, CO
Photo 2: cockpit view from driver’s seat 2013 GMC Sierra 2500HD SLT in Greeley, CO
Photo 3: 2013 GMC Sierra 2500HD SLT with  in Greeley, CO
Photo 4: 2013 GMC Sierra 2500HD SLT with  in Greeley, CO
Photo 5: 2013 GMC Sierra 2500HD SLT with  in Greeley, CO

Automatic / 4WD / 8 Cyl

  • Get Directions
$36,000

2013 GMC Sierra 2500HD SLT

54,548 miles / Greeley, CO

Photo 1:  2013 GMC Sierra 2500HD Denali in Englewood, CO exterior view from front driver's side
Photo 2:  2013 GMC Sierra 2500HD Denali in Englewood, CO
Photo 3: interior dashboard and console 2013 GMC Sierra 2500HD Denali in Englewood, CO
Photo 4:  2013 GMC Sierra 2500HD Denali in Englewood, CO front view of grill, headlights, hood and windshield
Photo 5:  2013 GMC Sierra 2500HD Denali in Englewood, CO exterior view from rear driver's side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$42,999

2013 GMC Sierra 2500HD Denali

85,168 miles / Englewood, CO

Photo 1:  2014 GMC Sierra 2500HD Denali in Denver, CO exterior view from front driver's side
Photo 2:  2014 GMC Sierra 2500HD Denali in Denver, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 2500HD Denali in Denver, CO
Photo 4:  2014 GMC Sierra 2500HD Denali in Denver, CO front view of grill, headlights, hood and windshield
Photo 5:  2014 GMC Sierra 2500HD Denali in Denver, CO exterior view of passenger side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$54,000

2014 GMC Sierra 2500HD Denali

31,463 miles / Denver, CO

Photo 1: Mineral Metallic 2017 GMC Sierra 2500HD Denali in Aurora, CO exterior view from front driver's side
Photo 2: Mineral Metallic 2017 GMC Sierra 2500HD Denali in Aurora, CO
Photo 3: Mineral Metallic 2017 GMC Sierra 2500HD Denali in Aurora, CO exterior view of driver's side
Photo 4: Mineral Metallic 2017 GMC Sierra 2500HD Denali in Aurora, CO exterior view from rear passenger side
Photo 5: Mineral Metallic 2017 GMC Sierra 2500HD Denali in Aurora, CO view of rear bumper

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$67,655

2017 GMC Sierra 2500HD Denali

18 miles / Aurora, CO

Photo 1: Onyx Black 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view from front driver's side
Photo 2: Onyx Black 2017 GMC Sierra 2500HD SLE in Aurora, CO
Photo 3: interior dashboard and console 2017 GMC Sierra 2500HD SLE in Aurora, CO
Photo 4: Onyx Black 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view of driver's side
Photo 5: Onyx Black 2017 GMC Sierra 2500HD SLE in Aurora, CO exterior view from rear passenger side

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$48,757

2017 GMC Sierra 2500HD SLE

17 miles / Aurora, CO

Photo 1:  2016 GMC Sierra 2500HD Denali in Englewood, CO exterior view from front driver's side
Photo 2:  2016 GMC Sierra 2500HD Denali in Englewood, CO view of rear bumper
Photo 3:  2016 GMC Sierra 2500HD Denali in Englewood, CO view of rear bumper
Photo 4: 2016 GMC Sierra 2500HD Denali with  in Englewood, CO
Photo 5: 2016 GMC Sierra 2500HD Denali with  in Englewood, CO

Automatic / 4WD / 8 Cyl

  • Call Dealer
  • Get Directions
$57,900

2016 GMC Sierra 2500HD Denali

12,563 miles / Englewood, CO