• SLT
  • SLE
  • Denali
  • SL
  • Work Truck
  • C3
  • Well-Equipped
  • 4WD
  • 8 Cyl
  • Flexible-Fuel
  • Great Deal
  • White
  • Keyless Entry
  • Gasoline
  • Black
  • CD (Single Disc)
  • Heated Seats
  • One Owner
  • 2014
  • Gray
  • Rear-View Camera
  • Blue
  • 2015
  • Silver
  • OnStar Communication System
  • Low Fuel Costs
  • Good Deal
  • MP3
  • Satellite Radio
  • 2012
  • Lower Than Average Mileage
  • Red
  • 2013
  • Handsfree/Bluetooth Integration
  • Brown
  • 2016
  • 2008
  • Going Fast
  • Automatic
  • Remote Start
  • 2011
  • Low Mileage
  • RWD
  • AWD
  • 2017
  • Popular Model
  • 2006
  • Certified Pre-Owned
  • Fair Price
  • 2009
  • Beige
  • 2007
  • 2010
  • 2005
  • 2004
  • 2000
  • Bronze
  • 2003
  • 1998
  • 1992
  • 1999
  • 2001
  • 2002
  • 1997

Price Range

$0 $60,000+

Max Mileage

New $80,000+

MPG

Min 14 Max 50

MORE

182 Results for

Used GMC Sierra 1500 For Sale in Fort Collins, CO

Search Results

Photo 1: Summit White 2008 GMC Sierra 1500 SLT in Greeley, CO exterior view from front driver's side
Photo 2: Summit White 2008 GMC Sierra 1500 SLT in Greeley, CO
Photo 3: Summit White 2008 GMC Sierra 1500 SLT in Greeley, CO exterior view of passenger side
Photo 4: Summit White 2008 GMC Sierra 1500 SLT in Greeley, CO exterior view from rear driver's side
Photo 5: Summit White 2008 GMC Sierra 1500 SLT in Greeley, CO view of rear bumper

Automatic / 4WD / 8 Cyl
14 mpg city / 19 mpg hwy

  • Get Directions
$17,900

2008 GMC Sierra 1500 SLT

106,815 miles Greeley, CO

Photo 1: Stealth Gray Metallic 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Stealth Gray Metallic 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$36,486

2014 GMC Sierra 1500 SLT

49,459 miles Brighton, CO

Photo 1:  2012 GMC Sierra 1500 Denali in Brighton, CO exterior view from front driver's side

Automatic / AWD / 8 Cyl
12 mpg city / 18 mpg hwy

  • Call Dealer
  • Get Directions
$29,486

2012 GMC Sierra 1500 Denali

84,803 miles Brighton, CO

Photo 1: Summit White 2014 GMC Sierra 1500 Denali in Brighton, CO exterior view from front driver's side
Photo 2: Summit White 2014 GMC Sierra 1500 Denali in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 Denali in Brighton, CO
Photo 4: interior dashboard and console 2014 GMC Sierra 1500 Denali in Brighton, CO
Photo 5: Summit White 2014 GMC Sierra 1500 Denali in Brighton, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl
14 mpg city / 20 mpg hwy

  • Call Dealer
  • Get Directions
$39,486

2014 GMC Sierra 1500 Denali

54,847 miles Brighton, CO

Photo 1: Mocha Steel Metallic 2013 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Mocha Steel Metallic 2013 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2013 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: interior dashboard and console 2013 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: Mocha Steel Metallic 2013 GMC Sierra 1500 SLT in Brighton, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl
15 mpg city / 21 mpg hwy

  • Call Dealer
  • Get Directions
$29,987

2013 GMC Sierra 1500 SLT

74,988 miles Brighton, CO

Photo 1: Onyx Black 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Onyx Black 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$37,486

2014 GMC Sierra 1500 SLT

38,514 miles Brighton, CO

Photo 1: Onyx Black 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Onyx Black 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: Onyx Black 2014 GMC Sierra 1500 SLT in Brighton, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$39,486

2014 GMC Sierra 1500 SLT

20,974 miles Brighton, CO

Photo 1: Summit White 2009 GMC Sierra 1500 SLE in Brighton, CO exterior view from front driver's side
Photo 2: Summit White 2009 GMC Sierra 1500 SLE in Brighton, CO
Photo 3: cockpit view from driver’s seat 2009 GMC Sierra 1500 SLE in Brighton, CO
Photo 4: interior dashboard and console 2009 GMC Sierra 1500 SLE in Brighton, CO
Photo 5: Summit White 2009 GMC Sierra 1500 SLE in Brighton, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl
13 mpg city / 18 mpg hwy

  • Call Dealer
  • Get Directions
$18,486

2009 GMC Sierra 1500 SLE

136,312 miles Brighton, CO

Photo 1: Summit White 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Summit White 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$32,486

2014 GMC Sierra 1500 SLT

24,369 miles Brighton, CO

Photo 1: Iridium Silver 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Iridium Silver 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: Iridium Silver 2014 GMC Sierra 1500 SLT in Brighton, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$38,486

2014 GMC Sierra 1500 SLT

28,394 miles Brighton, CO

Photo 1: Summit White 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: Summit White 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$36,486

2014 GMC Sierra 1500 SLT

47,772 miles Brighton, CO

Photo 1: White Diamond Tri-Coat 2014 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side
Photo 2: White Diamond Tri-Coat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 4: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLT in Brighton, CO
Photo 5: interior dashboard and console 2014 GMC Sierra 1500 SLT in Brighton, CO

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$37,486

2014 GMC Sierra 1500 SLT

41,426 miles Brighton, CO

Photo 1:  2014 GMC Sierra 1500 SLE in Brighton, CO exterior view from front driver's side

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$29,987

2014 GMC Sierra 1500 SLE

37,443 miles Brighton, CO

Photo 1: White Diamond 2015 GMC Sierra 1500 Denali in Brighton, CO exterior view from front driver's side
Photo 2: White Diamond 2015 GMC Sierra 1500 Denali in Brighton, CO
Photo 3: cockpit view from driver’s seat 2015 GMC Sierra 1500 Denali in Brighton, CO
Photo 4: cockpit view from driver’s seat 2015 GMC Sierra 1500 Denali in Brighton, CO
Photo 5: interior dashboard and console 2015 GMC Sierra 1500 Denali in Brighton, CO

Automatic / 4WD / 8 Cyl
15 mpg city / 21 mpg hwy

  • Call Dealer
  • Get Directions
$41,486

2015 GMC Sierra 1500 Denali

51,365 miles Brighton, CO

Photo 1: Onyx Black 2015 GMC Sierra 1500 Denali in Fort Collins, CO exterior view from front driver's side
Photo 2: Onyx Black 2015 GMC Sierra 1500 Denali in Fort Collins, CO
Photo 3: interior dashboard and console 2015 GMC Sierra 1500 Denali in Fort Collins, CO
Photo 4: interior dashboard and console 2015 GMC Sierra 1500 Denali in Fort Collins, CO
Photo 5: Onyx Black 2015 GMC Sierra 1500 Denali in Fort Collins, CO exterior view of driver's side

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$41,980

2015 GMC Sierra 1500 Denali

40,412 miles Fort Collins, CO

Photo 1:  2009 GMC Sierra 1500 SLE in Fort Collins, CO exterior view from front driver's side
Photo 2: interior dashboard and console 2009 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 3: interior dashboard and console 2009 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 4: 2009 GMC Sierra 1500 SLE with  in Fort Collins, CO
Photo 5:  2009 GMC Sierra 1500 SLE in Fort Collins, CO exterior view from rear passenger side

Automatic / 4WD / 8 Cyl
14 mpg city / 19 mpg hwy

  • Call Dealer
  • Get Directions
$20,488

2009 GMC Sierra 1500 SLE

103,256 miles Fort Collins, CO

Photo 1: Onyx Black 2015 GMC Sierra 1500 SLE in Fort Collins, CO exterior view from front driver's side
Photo 2: interior dashboard and console 2015 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 3: interior dashboard and console 2015 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 4: interior dashboard and console 2015 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 5: Onyx Black 2015 GMC Sierra 1500 SLE in Fort Collins, CO exterior view of driver's side

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$31,980

2015 GMC Sierra 1500 SLE

21,660 miles Fort Collins, CO

Photo 1: Onyx Black 2012 GMC Sierra 1500 SLE in Longmont, CO exterior view from front driver's side
Photo 2: Onyx Black 2012 GMC Sierra 1500 SLE in Longmont, CO
Photo 3: Onyx Black 2012 GMC Sierra 1500 SLE in Longmont, CO exterior view of passenger side
Photo 4: Onyx Black 2012 GMC Sierra 1500 SLE in Longmont, CO exterior view from rear driver's side
Photo 5: Onyx Black 2012 GMC Sierra 1500 SLE in Longmont, CO front view of grill, headlights, hood and windshield

Automatic / 4WD / 8 Cyl
15 mpg city / 21 mpg hwy

  • Call Dealer
  • Get Directions
$24,594

2012 GMC Sierra 1500 SLE

90,638 miles Longmont, CO

Photo 1:  2013 GMC Sierra 1500 SLE in Boulder, CO
Photo 2: interior dashboard and console 2013 GMC Sierra 1500 SLE in Boulder, CO
Photo 3:  2013 GMC Sierra 1500 SLE in Boulder, CO exterior view of driver's side
Photo 4:  2013 GMC Sierra 1500 SLE in Boulder, CO exterior view of driver's side
Photo 5:  2013 GMC Sierra 1500 SLE in Boulder, CO view of rear bumper

Automatic / 4WD / 8 Cyl
15 mpg city / 21 mpg hwy

  • Call Dealer
  • Get Directions
$25,572

2013 GMC Sierra 1500 SLE

89,644 miles Boulder, CO

Automatic / 4WD / 8 Cyl
14 mpg city / 19 mpg hwy

  • Call Dealer
  • Get Directions
$22,999

2008 GMC Sierra 1500 SLT

75,523 miles Cheyenne, WY

Photo 1:  2017 GMC Sierra 1500 SLT in Loveland, CO exterior view from front driver's side
Photo 2:  2017 GMC Sierra 1500 SLT in Loveland, CO
Photo 3: cockpit view from driver’s seat 2017 GMC Sierra 1500 SLT in Loveland, CO
Photo 4: interior dashboard and console 2017 GMC Sierra 1500 SLT in Loveland, CO
Photo 5:  2017 GMC Sierra 1500 SLT in Loveland, CO exterior view of passenger side

Automatic / 4WD / 8 Cyl
15 mpg city / 20 mpg hwy

  • Get Directions
$47,924

2017 GMC Sierra 1500 SLT

1,671 miles Loveland, CO

Photo 1:  2014 GMC Sierra 1500 SLT in Longmont, CO exterior view from front driver's side

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Get Directions
$33,999

2014 GMC Sierra 1500 SLT

17,317 miles Longmont, CO

Photo 1:  2008 GMC Sierra 1500 SLE SLE-2 in Fort Collins, CO exterior view from front driver's side
Photo 2:  2008 GMC Sierra 1500 SLE SLE-2 in Fort Collins, CO
Photo 3: cockpit view from driver’s seat 2008 GMC Sierra 1500 SLE SLE-2 in Fort Collins, CO
Photo 4: interior dashboard and console 2008 GMC Sierra 1500 SLE SLE-2 in Fort Collins, CO
Photo 5:  2008 GMC Sierra 1500 SLE SLE-2 in Fort Collins, CO exterior view of driver's side

Automatic / 4WD / 8 Cyl
14 mpg city / 19 mpg hwy

  • Get Directions
$21,900

2008 GMC Sierra 1500 SLE SLE-2

84,198 miles Fort Collins, CO

Photo 1:  2014 GMC Sierra 1500 SLE in Thornton, CO exterior view from front driver's side
Photo 2:  2014 GMC Sierra 1500 SLE in Thornton, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLE in Thornton, CO
Photo 4:  2014 GMC Sierra 1500 SLE in Thornton, CO front view of grill, headlights, hood and windshield
Photo 5:  2014 GMC Sierra 1500 SLE in Thornton, CO exterior view of passenger side

Automatic / 4WD / 8 Cyl
16 mpg city / 22 mpg hwy

  • Get Directions
$33,171

2014 GMC Sierra 1500 SLE

31,427 miles Thornton, CO