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Price Range

$0 $60,000+

Max Mileage

New $80,000+

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441 Results for

Used GMC Sierra 1500 For Sale in Longmont, CO

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Photo 1: Quicksilver Metallic 2015 GMC Sierra 1500 Base in Denver, CO
Photo 2: Quicksilver Metallic 2015 GMC Sierra 1500 Base in Denver, CO exterior view from rear driver's side
Photo 3: Quicksilver Metallic 2015 GMC Sierra 1500 Base in Denver, CO view of rear bumper
Photo 4: Quicksilver Metallic 2015 GMC Sierra 1500 Base in Denver, CO exterior view from rear passenger side
Photo 5: Quicksilver Metallic 2015 GMC Sierra 1500 Base in Denver, CO closeup view of wheel

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

  • Dealer Page
  • Get Directions
$27,599

2015 GMC Sierra 1500 Base

15,990 miles / Denver, CO

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

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

  • Dealer Page
  • Get Directions
$37,000

2014 GMC Sierra 1500 Denali

51,496 miles / Denver, CO

Photo 1: Bronze Alloy Metallic 2014 GMC Sierra 1500 SLE in Denver, CO exterior view from front driver's side
Photo 2: Bronze Alloy Metallic 2014 GMC Sierra 1500 SLE in Denver, CO
Photo 3: Bronze Alloy Metallic 2014 GMC Sierra 1500 SLE in Denver, CO exterior view of passenger side
Photo 4: Bronze Alloy Metallic 2014 GMC Sierra 1500 SLE in Denver, CO closeup view of wheel
Photo 5: Bronze Alloy Metallic 2014 GMC Sierra 1500 SLE in Denver, CO closeup view of wheel

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

  • Dealer Page
  • Get Directions
$31,500

2014 GMC Sierra 1500 SLE

27,676 miles / Denver, CO

Photo 1: Stone Blue Metallic 2015 GMC Sierra 1500 SLT in Denver, CO exterior view from front driver's side
Photo 2: Stone Blue Metallic 2015 GMC Sierra 1500 SLT in Denver, CO
Photo 3: cockpit view from driver’s seat 2015 GMC Sierra 1500 SLT in Denver, CO
Photo 4: Stone Blue Metallic 2015 GMC Sierra 1500 SLT in Denver, CO front view of grill, headlights, hood and windshield
Photo 5: Stone Blue Metallic 2015 GMC Sierra 1500 SLT in Denver, CO exterior view of driver's side

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

  • Dealer Page
  • Get Directions
$40,000

2015 GMC Sierra 1500 SLT

21,518 miles / Denver, CO

Photo 1: Summit White 2016 GMC Sierra 1500 Denali in Denver, CO exterior view from front driver's side
Photo 2: Summit White 2016 GMC Sierra 1500 Denali in Denver, CO
Photo 3: cockpit view from driver’s seat 2016 GMC Sierra 1500 Denali in Denver, CO
Photo 4: interior dashboard and console 2016 GMC Sierra 1500 Denali in Denver, CO
Photo 5: Summit White 2016 GMC Sierra 1500 Denali in Denver, CO front view of grill, headlights, hood and windshield

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

  • Dealer Page
  • Get Directions
$46,000

2016 GMC Sierra 1500 Denali

10,995 miles / Denver, CO

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

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

  • Dealer Page
  • Get Directions
$37,000

2014 GMC Sierra 1500 SLT

16,911 miles / Denver, CO

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

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

  • Dealer Page
  • Get Directions
$25,750

2015 GMC Sierra 1500 Base

23,865 miles / Denver, CO

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

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

  • Dealer Page
  • Get Directions
$37,000

2014 GMC Sierra 1500 SLT

16,345 miles / Denver, CO

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

  • Dealer Page
  • Get Directions
$30,000

2015 GMC Sierra 1500 Base

11,990 miles / Denver, CO

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

  • Dealer Page
  • Get Directions
$9,500

2003 GMC Sierra 1500 Base

168,185 miles / Denver, CO

Photo 1: White Frost Tri-Coat 2017 GMC Sierra 1500 Denali in Aurora, CO exterior view from front driver's side
Photo 2: White Frost Tri-Coat 2017 GMC Sierra 1500 Denali in Aurora, CO
Photo 3: cockpit view from driver’s seat 2017 GMC Sierra 1500 Denali in Aurora, CO
Photo 4: White Frost Tri-Coat 2017 GMC Sierra 1500 Denali in Aurora, CO exterior view of driver's side
Photo 5: White Frost Tri-Coat 2017 GMC Sierra 1500 Denali in Aurora, CO exterior view from rear passenger side

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

  • Call Dealer
  • Get Directions
$62,093

2017 GMC Sierra 1500 Denali

18 miles / Aurora, CO

Photo 1: White Frost Tri-Coat 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from front driver's side
Photo 2: White Frost Tri-Coat 2017 GMC Sierra 1500 SLT in Aurora, CO
Photo 3: cockpit view from driver’s seat 2017 GMC Sierra 1500 SLT in Aurora, CO
Photo 4: White Frost Tri-Coat 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view of driver's side
Photo 5: White Frost Tri-Coat 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from rear passenger side

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

  • Call Dealer
  • Get Directions
$54,774

2017 GMC Sierra 1500 SLT

18 miles / Aurora, CO

Photo 1: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from front driver's side
Photo 2: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO
Photo 3: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view of driver's side
Photo 4: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from rear passenger side
Photo 5: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO view of rear bumper

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

  • Call Dealer
  • Get Directions
$56,205

2017 GMC Sierra 1500 SLT

8 miles / Aurora, CO

Photo 1: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from front driver's side
Photo 2: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO
Photo 3: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view of driver's side
Photo 4: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from rear passenger side
Photo 5: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO view of rear bumper

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

  • Call Dealer
  • Get Directions
$53,660

2017 GMC Sierra 1500 SLT

20 miles / Aurora, CO

Photo 1:  2011 GMC Sierra 1500 SLE in Longmont, CO exterior view from front driver's side
Photo 2:  2011 GMC Sierra 1500 SLE in Longmont, CO
Photo 3:  2011 GMC Sierra 1500 SLE in Longmont, CO exterior view of driver's side
Photo 4:  2011 GMC Sierra 1500 SLE in Longmont, CO front view of grill, headlights, hood and windshield
Photo 5:  2011 GMC Sierra 1500 SLE in Longmont, CO exterior view of passenger side

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

  • Dealer Page
  • Call
  • Get Directions
$18,999

2011 GMC Sierra 1500 SLE

118,877 miles / Longmont, CO

Photo 1: Stealth Gray Metallic 2014 GMC Sierra 1500 SLE in Golden, CO exterior view from front driver's side
Photo 2: Stealth Gray Metallic 2014 GMC Sierra 1500 SLE in Golden, CO
Photo 3: cockpit view from driver’s seat 2014 GMC Sierra 1500 SLE in Golden, CO
Photo 4: Stealth Gray Metallic 2014 GMC Sierra 1500 SLE in Golden, CO exterior view of passenger side
Photo 5: Stealth Gray Metallic 2014 GMC Sierra 1500 SLE in Golden, CO exterior view from rear driver's side

Automatic / 4WD / 6 Cyl
17 mpg city / 22 mpg hwy

  • Call Dealer
  • Get Directions
$28,365

2014 GMC Sierra 1500 SLE

34,664 miles / Golden, CO

Photo 1: Onyx Black 2015 GMC Sierra 1500 Denali in Longmont, CO exterior view from front driver's side
Photo 2: Onyx Black 2015 GMC Sierra 1500 Denali in Longmont, CO front view of grill, headlights, hood and windshield
Photo 3: Onyx Black 2015 GMC Sierra 1500 Denali in Longmont, CO exterior view from rear driver's side

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

  • Call Dealer
  • Get Directions
$41,999

2015 GMC Sierra 1500 Denali

41,346 miles / Longmont, CO

Photo 1:  2016 GMC Sierra 1500 SLE in Aurora, CO exterior view from front driver's side
Photo 2:  2016 GMC Sierra 1500 SLE in Aurora, CO
Photo 3:  2016 GMC Sierra 1500 SLE in Aurora, CO exterior view of driver's side
Photo 4:  2016 GMC Sierra 1500 SLE in Aurora, CO exterior view from rear passenger side
Photo 5:  2016 GMC Sierra 1500 SLE in Aurora, CO view of rear bumper



  • Call Dealer
  • Get Directions
$39,900

2016 GMC Sierra 1500 SLE

9,298 miles / Aurora, CO

Photo 1: Light Steel Gray Metallic 2016 GMC Sierra 1500 SLE in Littleton, CO exterior view from front driver's side
Photo 2: Light Steel Gray Metallic 2016 GMC Sierra 1500 SLE in Littleton, CO
Photo 3: Light Steel Gray Metallic 2016 GMC Sierra 1500 SLE in Littleton, CO front view of grill, headlights, hood and windshield
Photo 4: Light Steel Gray Metallic 2016 GMC Sierra 1500 SLE in Littleton, CO exterior view of passenger side
Photo 5: Light Steel Gray Metallic 2016 GMC Sierra 1500 SLE in Littleton, CO exterior view from rear driver's side

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

  • Call Dealer
  • Get Directions
$35,652

2016 GMC Sierra 1500 SLE

14,188 miles / Littleton, CO

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

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

  • Dealer Page
  • Call
  • Get Directions
$13,000

2006 GMC Sierra 1500

135,319 miles / Thornton, CO

Photo 1: 2015 GMC Sierra 1500 Denali with  in Longmont, CO
Photo 2: 2015 GMC Sierra 1500 Denali with  in Longmont, CO
Photo 3: 2015 GMC Sierra 1500 Denali with  in Longmont, CO

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

  • Call Dealer
  • Get Directions
$38,599

2015 GMC Sierra 1500 Denali

72,848 miles / Longmont, CO

Photo 1: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO
Photo 2: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view of driver's side
Photo 3: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view of driver's side
Photo 4: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO exterior view from rear passenger side
Photo 5: Onyx Black 2017 GMC Sierra 1500 SLT in Aurora, CO view of rear bumper

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

  • Call Dealer
  • Get Directions
$56,797

2017 GMC Sierra 1500 SLT

12 miles / Aurora, CO

Photo 1:  2016 GMC Sierra 1500 SLE in Denver, CO exterior view from front driver's side
Photo 2:  2016 GMC Sierra 1500 SLE in Denver, CO
Photo 3:  2016 GMC Sierra 1500 SLE in Denver, CO front view of grill, headlights, hood and windshield
Photo 4:  2016 GMC Sierra 1500 SLE in Denver, CO exterior view of passenger side
Photo 5:  2016 GMC Sierra 1500 SLE in Denver, CO exterior view from rear driver's side

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

  • Call Dealer
  • Get Directions
$33,000

2016 GMC Sierra 1500 SLE

13,297 miles / Denver, CO

Photo 1: Onyx Black 2017 GMC Sierra 1500 in Aurora, CO exterior view from front driver's side
Photo 2: Onyx Black 2017 GMC Sierra 1500 in Aurora, CO
Photo 3: interior dashboard and console 2017 GMC Sierra 1500 in Aurora, CO
Photo 4: Onyx Black 2017 GMC Sierra 1500 in Aurora, CO exterior view of driver's side
Photo 5: Onyx Black 2017 GMC Sierra 1500 in Aurora, CO exterior view from rear passenger side

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

  • Call Dealer
  • Get Directions
$41,928

2017 GMC Sierra 1500

8 miles / Aurora, CO