• SLT
  • SLE
  • Denali
  • Work Truck
  • Base
  • SL
  • Great Deal
  • Well-Equipped
  • 4WD
  • White
  • Good Deal
  • 8 Cyl
  • Low Mileage
  • One Owner
  • Heated Seats
  • MP3
  • Flexible-Fuel
  • 2014
  • Lower Than Average Mileage
  • Black
  • 2013
  • Remote Start
  • Low Fuel Costs
  • Seat Memory
  • 2015
  • Silver
  • Gray
  • Blue
  • Popular Model
  • Fair Price
  • Going Fast
  • Gasoline
  • RWD
  • 2011
  • Brown
  • 2008
  • 6 Cyl
  • OnStar Communication System
  • 2010
  • AWD
  • 2012
  • Red
  • 2006
  • 2016
  • 2009
  • 2007
  • Certified Pre-Owned
  • 2005
  • Beige
  • 2004
  • 2003
  • Keyless Entry
  • 2002
  • Satellite Radio
  • 2017
  • 1994
  • 1998
  • 1992
  • 1999
  • 2001
  • 1997
  • Yellow

Price Range

$0 $60,000+

Max Mileage

New $80,000+

MPG

Min 14 Max 50

MORE

119 Results for

Used GMC Sierra 1500 For Sale in Fort Collins, CO

Search Results

Photo 1:  2013 GMC Sierra 1500 SLE in Boulder, CO exterior view from front driver's side
Photo 2:  2013 GMC Sierra 1500 SLE in Boulder, CO
Photo 3: cockpit view from driver’s seat 2013 GMC Sierra 1500 SLE in Boulder, CO
Photo 4: 2013 GMC Sierra 1500 SLE with  in Boulder, CO
Photo 5: 2013 GMC Sierra 1500 SLE with  in Boulder, CO

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

  • Call Dealer
  • Get Directions
$24,989

2013 GMC Sierra 1500 SLE

32,063 miles / Boulder, CO

Photo 1: Steel Gray Metallic 2012 GMC Sierra 1500 Denali in Fort Collins, CO exterior view from front driver's side
Photo 2: Steel Gray Metallic 2012 GMC Sierra 1500 Denali in Fort Collins, CO
Photo 3: cockpit view from driver’s seat 2012 GMC Sierra 1500 Denali in Fort Collins, CO
Photo 4: Steel Gray Metallic 2012 GMC Sierra 1500 Denali in Fort Collins, CO exterior view of passenger side
Photo 5: Steel Gray Metallic 2012 GMC Sierra 1500 Denali in Fort Collins, CO exterior view from rear driver's side

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

  • Call Dealer
  • Get Directions
$27,049

2012 GMC Sierra 1500 Denali

81,827 miles / Fort Collins, CO

Photo 1: 2010 GMC Sierra 1500 SLT with  in Fort Collins, CO
Photo 2: 2010 GMC Sierra 1500 SLT with  in Fort Collins, CO
Photo 3: 2010 GMC Sierra 1500 SLT with  in Fort Collins, CO
Photo 4: 2010 GMC Sierra 1500 SLT in Fort Collins, CO
Photo 5: 2010 GMC Sierra 1500 SLT in Fort Collins, CO

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

  • Dealer Page
  • Get Directions
$28,621

2010 GMC Sierra 1500 SLT

47,086 miles / Fort Collins, CO

Photo 1:  2015 GMC Sierra 1500 SLT in Brighton, CO exterior view from front driver's side

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

  • Call Dealer
  • Get Directions
$37,590

2015 GMC Sierra 1500 SLT

22,653 miles / Brighton, CO

Photo 1: Summit White 2013 GMC Sierra 1500 SLE in Longmont, CO exterior view from front driver's side
Photo 2: Summit White 2013 GMC Sierra 1500 SLE in Longmont, CO
Photo 3: cockpit view from driver’s seat 2013 GMC Sierra 1500 SLE in Longmont, CO
Photo 4: interior dashboard and console 2013 GMC Sierra 1500 SLE in Longmont, CO
Photo 5: Summit White 2013 GMC Sierra 1500 SLE in Longmont, CO exterior view from rear passenger side

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

  • Call Dealer
  • Get Directions
$25,991

2013 GMC Sierra 1500 SLE

33,929 miles / Longmont, CO

Photo 1:  2006 GMC Sierra 1500 SLT in Longmont, CO exterior view from front driver's side
Photo 2:  2006 GMC Sierra 1500 SLT in Longmont, CO
Photo 3: interior dashboard and console 2006 GMC Sierra 1500 SLT in Longmont, CO
Photo 4:  2006 GMC Sierra 1500 SLT in Longmont, CO front view of grill, headlights, hood and windshield
Photo 5:  2006 GMC Sierra 1500 SLT in Longmont, CO exterior view of passenger side

Automatic / 4WD / 8 Cyl
13 mpg city / 17 mpg hwy

  • Dealer Page
  • Call
  • Get Directions
$13,999

2006 GMC Sierra 1500 SLT

84,000 miles / Longmont, CO

Photo 1:  2010 GMC Sierra 1500 SLE in Greeley, CO
Photo 2: cockpit view from driver’s seat 2010 GMC Sierra 1500 SLE in Greeley, CO
Photo 3: 2010 GMC Sierra 1500 SLE with  in Greeley, CO
Photo 4: 2010 GMC Sierra 1500 SLE with  in Greeley, CO
Photo 5: 2010 GMC Sierra 1500 SLE with  in Greeley, CO

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

  • Get Directions
$22,000

2010 GMC Sierra 1500 SLE

93,039 miles / Greeley, CO

Photo 1:  2015 GMC Sierra 1500 SLE in Fort Collins, CO exterior view from front driver's side
Photo 2:  2015 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 3: cockpit view from driver’s seat 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: interior dashboard and console 2015 GMC Sierra 1500 SLE in Fort Collins, CO

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

  • Call Dealer
  • Get Directions
$32,380

2015 GMC Sierra 1500 SLE

24,271 miles / Fort Collins, CO

Photo 1:  2009 GMC Sierra 1500 Denali in Cheyenne, WY exterior view from front driver's side
Photo 2:  2009 GMC Sierra 1500 Denali in Cheyenne, WY
Photo 3:  2009 GMC Sierra 1500 Denali in Cheyenne, WY exterior view of passenger side
Photo 4:  2009 GMC Sierra 1500 Denali in Cheyenne, WY exterior view from rear driver's side
Photo 5:  2009 GMC Sierra 1500 Denali in Cheyenne, WY front view of grill, headlights, hood and windshield

Automatic / AWD / 8 Cyl
12 mpg city / 19 mpg hwy

  • Dealer Page
  • Get Directions
$28,992

2009 GMC Sierra 1500 Denali

49,623 miles / Cheyenne, WY

Photo 1: 2013 GMC Sierra 1500 SLT with  in Greeley, CO
Photo 2: 2013 GMC Sierra 1500 SLT in Greeley, CO
Photo 3: 2013 GMC Sierra 1500 SLT in Greeley, CO
Photo 4: 2013 GMC Sierra 1500 SLT in Greeley, CO
Photo 5: 2013 GMC Sierra 1500 SLT in Greeley, CO

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

  • Call Dealer
  • Get Directions
$26,559

2013 GMC Sierra 1500 SLT

68,117 miles / Greeley, CO

Photo 1: 2012 GMC Sierra 1500 SLE with  in Greeley, CO
Photo 2: 2012 GMC Sierra 1500 SLE with  in Greeley, CO
Photo 3: 2012 GMC Sierra 1500 SLE in Greeley, CO

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

  • Call Dealer
  • Get Directions
$24,018

2012 GMC Sierra 1500 SLE

106,370 miles / Greeley, CO

Photo 1:  2009 GMC Sierra 1500 SLT in Northglenn, CO exterior view from front driver's side
Photo 2:  2009 GMC Sierra 1500 SLT in Northglenn, CO
Photo 3: cockpit view from driver’s seat 2009 GMC Sierra 1500 SLT in Northglenn, CO
Photo 4: interior dashboard and console 2009 GMC Sierra 1500 SLT in Northglenn, CO
Photo 5:  2009 GMC Sierra 1500 SLT in Northglenn, CO exterior view of passenger side

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

  • Call Dealer
  • Get Directions
$24,999

2009 GMC Sierra 1500 SLT

77,886 miles / Northglenn, CO

Photo 1:  2010 GMC Sierra 1500 SLE in Cheyenne, WY exterior view from front driver's side
Photo 2:  2010 GMC Sierra 1500 SLE in Cheyenne, WY
Photo 3:  2010 GMC Sierra 1500 SLE in Cheyenne, WY exterior view of passenger side
Photo 4:  2010 GMC Sierra 1500 SLE in Cheyenne, WY exterior view from rear driver's side
Photo 5:  2010 GMC Sierra 1500 SLE in Cheyenne, WY front view of grill, headlights, hood and windshield

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

  • Dealer Page
  • Get Directions
$25,990

2010 GMC Sierra 1500 SLE

94,132 miles / Cheyenne, WY

Photo 1: Stealth Gray Metallic 2008 GMC Sierra 1500 SLE SLE-1 in Greeley, CO
Photo 2: cockpit view from driver’s seat 2008 GMC Sierra 1500 SLE SLE-1 in Greeley, CO
Photo 3: 2008 GMC Sierra 1500 SLE SLE-1 with  in Greeley, CO
Photo 4: 2008 GMC Sierra 1500 SLE SLE-1 with  in Greeley, CO
Photo 5: 2008 GMC Sierra 1500 SLE SLE-1 with  in Greeley, CO

Automatic / RWD / 8 Cyl
15 mpg city / 20 mpg hwy

  • Get Directions
$16,950

2008 GMC Sierra 1500 SLE SLE-1

102,872 miles / Greeley, CO

Photo 1: 2008 GMC Sierra 1500 SLT with  in Louisville, CO
Photo 2: 2008 GMC Sierra 1500 SLT with  in Louisville, CO
Photo 3: 2008 GMC Sierra 1500 SLT with  in Louisville, CO
Photo 4: 2008 GMC Sierra 1500 SLT in Louisville, CO
Photo 5: 2008 GMC Sierra 1500 SLT in Louisville, CO

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

  • Dealer Page
  • Call
  • Get Directions
$24,998

2008 GMC Sierra 1500 SLT

23,257 miles / Louisville, CO

Photo 1: Quicksilver Metallic 2012 GMC Sierra 1500 SLE in Greeley, CO
Photo 2: cockpit view from driver’s seat 2012 GMC Sierra 1500 SLE in Greeley, CO
Photo 3: 2012 GMC Sierra 1500 SLE with  in Greeley, CO
Photo 4: 2012 GMC Sierra 1500 SLE with  in Greeley, CO
Photo 5: 2012 GMC Sierra 1500 SLE with  in Greeley, CO

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

  • Get Directions
$17,900

2012 GMC Sierra 1500 SLE

186,971 miles / Greeley, CO

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

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

  • Call Dealer
  • Get Directions
$16,974

2008 GMC Sierra 1500 SLT

138,960 miles / Henderson, CO

Photo 1:  2010 GMC Sierra 1500 SLE in Fort Collins, CO exterior view from front driver's side
Photo 2:  2010 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 3: cockpit view from driver’s seat 2010 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 4: interior dashboard and console 2010 GMC Sierra 1500 SLE in Fort Collins, CO
Photo 5:  2010 GMC Sierra 1500 SLE in Fort Collins, CO exterior view of driver's side

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

  • Call Dealer
  • Get Directions
$21,900

2010 GMC Sierra 1500 SLE

116,028 miles / Fort Collins, CO

Photo 1:  2008 GMC Sierra 1500 in Cheyenne, WY exterior view from front driver's side
Photo 2:  2008 GMC Sierra 1500 in Cheyenne, WY
Photo 3:  2008 GMC Sierra 1500 in Cheyenne, WY exterior view of passenger side
Photo 4:  2008 GMC Sierra 1500 in Cheyenne, WY exterior view from rear driver's side
Photo 5:  2008 GMC Sierra 1500 in Cheyenne, WY front view of grill, headlights, hood and windshield

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

  • Dealer Page
  • Get Directions
$13,990

2008 GMC Sierra 1500

179,310 miles / Cheyenne, WY

Photo 1:  2012 GMC Sierra 1500 Work Truck in Longmont, CO exterior view from front driver's side
Photo 2:  2012 GMC Sierra 1500 Work Truck in Longmont, CO
Photo 3: cockpit view from driver’s seat 2012 GMC Sierra 1500 Work Truck in Longmont, CO
Photo 4:  2012 GMC Sierra 1500 Work Truck in Longmont, CO exterior view from rear passenger side
Photo 5:  2012 GMC Sierra 1500 Work Truck in Longmont, CO exterior view from rear driver's side

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

  • Call Dealer
  • Get Directions
$21,000

2012 GMC Sierra 1500 Work Truck

65,722 miles / Longmont, CO

Photo 1: Mocha Steel Metallic 2012 GMC Sierra 1500 SLT in Cheyenne, WY exterior view from front driver's side
Photo 2: Mocha Steel Metallic 2012 GMC Sierra 1500 SLT in Cheyenne, WY
Photo 3: cockpit view from driver’s seat 2012 GMC Sierra 1500 SLT in Cheyenne, WY
Photo 4: Mocha Steel Metallic 2012 GMC Sierra 1500 SLT in Cheyenne, WY exterior view from rear driver's side
Photo 5: 2012 GMC Sierra 1500 SLT with  in Cheyenne, WY

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

  • Dealer Page
  • Get Directions
$27,990

2012 GMC Sierra 1500 SLT

102,336 miles / Cheyenne, WY

Photo 1: Wine 2008 GMC Sierra 1500 SLE SLE-1 in Broomfield, CO exterior view from front driver's side
Photo 2: Wine 2008 GMC Sierra 1500 SLE SLE-1 in Broomfield, CO
Photo 3: cockpit view from driver’s seat 2008 GMC Sierra 1500 SLE SLE-1 in Broomfield, CO
Photo 4: Wine 2008 GMC Sierra 1500 SLE SLE-1 in Broomfield, CO front view of grill, headlights, hood and windshield
Photo 5: Wine 2008 GMC Sierra 1500 SLE SLE-1 in Broomfield, CO view of rear bumper

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

  • Dealer Page
  • Call
  • Get Directions
$16,980

2008 GMC Sierra 1500 SLE SLE-1

139,025 miles / Broomfield, CO

Photo 1:  2008 GMC Sierra 1500 Work Truck in Henderson, CO exterior view from front driver's side
Photo 2:  2008 GMC Sierra 1500 Work Truck in Henderson, CO
Photo 3: cockpit view from driver’s seat 2008 GMC Sierra 1500 Work Truck in Henderson, CO
Photo 4: interior dashboard and console 2008 GMC Sierra 1500 Work Truck in Henderson, CO
Photo 5:  2008 GMC Sierra 1500 Work Truck in Henderson, CO exterior view of passenger side

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

  • Call Dealer
  • Get Directions
$11,590

2008 GMC Sierra 1500 Work Truck

119,341 miles / Henderson, CO

Photo 1: Steel Gray Metallic 2008 GMC Sierra 1500 SLE SLE-1 in Brighton, CO exterior view from front driver's side
Photo 2: cockpit view from driver’s seat 2008 GMC Sierra 1500 SLE SLE-1 in Brighton, CO
Photo 3: Steel Gray Metallic 2008 GMC Sierra 1500 SLE SLE-1 in Brighton, CO front view of grill, headlights, hood and windshield
Photo 4: 2008 GMC Sierra 1500 SLE SLE-1 with  in Brighton, CO
Photo 5: Steel Gray Metallic 2008 GMC Sierra 1500 SLE SLE-1 in Brighton, CO closeup view of wheel

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

  • Dealer Page
  • Call
  • Get Directions
$13,988

2008 GMC Sierra 1500 SLE SLE-1

145,343 miles / Brighton, CO