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992 listings
- Price Drop$31,405good price$2,440 below market
- 104,120 miles
- No accidents, 1 owner, personal use only
- 5'9” bed, 6.2l, 8cyl
- Skyline Mitsubishi (45 mi away)
- Home delivery*
Close
Located in Thornton, CO / 45 miles away from Fort Collins, CO
Onyx Black Denali 4WD ***At Skyline Mitsubishi we have financing for everyone. Call 303-465-5512.*****, "Dealer Handling charge is included in the ask...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU2PEJ2JG575820
Stock: 20374
Certified Pre-Owned: No
Listed since: 11-25-2024 - Price Drop$37,488fair price$362 above market
- 52,345 miles
- No accidents, 2 owners, personal use only
- 5'9” bed, 5.3l, 8cyl
- Interstate Ford (31 mi away)
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Located in Dacono, CO / 31 miles away from Fort Collins, CO
5.3L ECOTEC3 V8, TRAILER TOW, NAVIGATION SYSTEM, HEATED LEATHER-TRIMMED SEATS W/10-WAY POWER DRIVER/PASSENGER & DRIVER MEMORY, POWER LOCKS/WINDOWS/MIR...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2NEC9JG111462
Stock: C0238
Certified Pre-Owned: No
Listed since: 03-15-2025 - Price Drop$26,797fair price$161 below market
- 111,245 miles
- No accidents, 3 owners, corporate fleet vehicle
- 5'9” bed, 5.3l, 8cyl
- AutoNation Buick GMC Park Meadows (67 mi away)
- Home delivery*
Close
Located in Lone Tree, CO / 67 miles away from Fort Collins, CO
The following items have been reconditioned on this vehicle: new brakes and new battery! Texas Slt Premium PackageWheels; 20" X 9" (50.8 Cm X 22.9...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: No
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2NEC1JG555144
Stock: JG555144
Certified Pre-Owned: No
Listed since: 03-29-2025 - $32,979fair price$986 above market
- 70,654 miles
- No accidents, 2 owners, personal use only
- 5'9” bed, 5.3l, 8cyl
- ClearShift Loveland (9 mi away)
Close
Located in Loveland, CO / 9 miles away from Fort Collins, CO
2018 GMC Sierra 1500 SLT Summit White 4WD EcoTec3 5.3L V8 6-Speed Automatic Electronic with OverdriveClean CARFAX.Call us today to speak with one...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2NEC2JG387420
Stock: 387420T
Certified Pre-Owned: No
Listed since: 01-15-2025 - $35,998fair price$626 below market
- 80,282 miles
- 1 accident, 2 owners, personal use only
- 5'9” bed, 6.2l, 8cyl
- CarMax West 104th Ave (45 mi away)
Close
Located in Federal Heights, CO / 45 miles away from Fort Collins, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU2PEJ7JG228936
Stock: 26549698
Certified Pre-Owned: No - Not Priced
- 147,962 miles
- No accidents, 2 owners, personal use only
- 6'7” bed, 4.3l, 6cyl
- Lakeside Auto Brokers (119 mi away)
Close
Located in Colorado Springs, CO / 119 miles away from Fort Collins, CO
Silver 2018 GMC Sierra 1500 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 4.3L V6 Flex Fuel 6-Speed Automatic Electronic with Overdrive, 4WD...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
19 Combined MPG (17 City/22 Highway)
Listing Information:
VIN: 1GTV2LEH9JZ134857
Stock: P16932
Certified Pre-Owned: No
Listed since: 04-11-2025 - New Listing$31,998great price$3,734 below market
- 90,339 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- CarMax South Broadway (64 mi away)
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Located in Littleton, CO / 64 miles away from Fort Collins, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
17 Combined MPG (15 City/21 Highway)
Listing Information:
VIN: 1GTU9DED4KZ335254
Stock: 26729308
Certified Pre-Owned: No - $23,500good price$1,177 below market
- 136,792 miles
- No accidents, 2 owners, personal use only
- 5'9” bed, 5.3l, 8cyl
- Sterling Auto Sales (80 mi away)
Close
Located in Franktown, CO / 80 miles away from Fort Collins, CO
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2NEC5HG344085
Stock: HG344085STK
Certified Pre-Owned: No
Listed since: 03-18-2025 - $28,895fair price$756 below market
- 96,734 miles
- No accidents, 1 owner, personal use only
- 5'9” bed, 5.3l, 8cyl
- McDonald Mazda West (55 mi away)
- Home delivery*
Close
Located in Lakewood, CO / 55 miles away from Fort Collins, CO
Clean CARFAX One-Owner ** 2017 GMC Sierra 1500 SLT ** Four Wheel Drive ** Premium Plus Package ** Off Road Suspension Package ** Enhanced Driver Alert...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2NEC0HG295894
Stock: WTHG295894
Certified Pre-Owned: No
Listed since: 03-28-2025 - Price Drop$27,800fair price$834 below market
- 87,994 miles
- No accidents, 2 owners, personal use only
- 6'7” bed, 5.3l, 8cyl
- Lakeside Auto Brokers (119 mi away)
Close
Located in Colorado Springs, CO / 119 miles away from Fort Collins, CO
Satin Steel Metallic 2019 GMC Sierra 1500 SLE 4WD 8-Speed Automatic EcoTec3 5.3L V8 8-Speed Automatic, 4WD, Black Cloth, 12-Volt Rear Auxiliary Power ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTR9BED1KZ348764
Stock: P16918
Certified Pre-Owned: No
Listed since: 04-01-2025 - $32,490good price$1,611 below market
- 71,050 miles
- No accidents, 1 owner, personal use
- 5'9” bed, 6.2l, 8cyl
- Herl Chevrolet GMC (194 mi away)
Close
Located in Goodland, KS / 194 miles away from Fort Collins, CO
This 2017 GMC Sierra 1500 SLT Onyx Black with Jet Black interior has 71050 miles. No Accidents! All-Terrain Package ($2,670 value)Front Full Feature P...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU2NEJXHG223146
Stock: HG223146
Certified Pre-Owned: No
Listed since: 03-28-2025 - $30,490good price$2,026 below market
- 67,241 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- Herl Chevrolet GMC (194 mi away)
Close
Located in Goodland, KS / 194 miles away from Fort Collins, CO
This 2019 GMC Sierra 1500 SLE Summit White with Dark Walnut/Slate interior has 67241 miles. No Accidents! One Owner! SLE Convenience Package ($2,200 v...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9BED4KZ356254
Stock: KZ356254
Certified Pre-Owned: No
Listed since: 12-17-2024 - $33,950fair price$1,553 below market
- 78,928 miles
- No accidents, 3 owners, corporate fleet vehicle
- 5'9” bed, 6.2l, 8cyl
- Sterling Auto Sales (80 mi away)
Close
Located in Franktown, CO / 80 miles away from Fort Collins, CO
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: No
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU2PEJ7HG273367
Stock: HG273367STK
Certified Pre-Owned: No
Listed since: 04-09-2025 - New Listing$27,318fair price$103 above market
- 127,980 miles
- No accidents, 2 owners, personal use only
- 5'9” bed, 6.2l, 8cyl
- Skyline Mitsubishi (45 mi away)
- Home delivery*
Close
Located in Thornton, CO / 45 miles away from Fort Collins, CO
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU2NEJ4HG404081
Stock: 20522
Certified Pre-Owned: No
Listed since: 04-23-2025 - Price Drop$42,099fair price$1,704 below market
- 35,531 miles
- 1 accident, 3 owners, personal use
- 5'10” bed, 5.3l, 8cyl
- Castle Rock Chevrolet GMC (82 mi away)
Close
Located in Castle Rock, CO / 82 miles away from Fort Collins, CO
8-Speed Automatic, 4WD, Red Quartz Tintcoat, Jet Black Leather.Red Quartz Tintcoat 2019 GMC Sierra 1500 Denali 4WD 8-Speed Automatic EcoTec3 5.3L V8...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
17 Combined MPG (15 City/21 Highway)
Listing Information:
VIN: 1GTU9FED0KZ138397
Stock: KZ138397T
Certified Pre-Owned: No
Listed since: 04-05-2025 - Price Drop$38,799fair price$204 above market
- 61,112 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- Castle Rock Chevrolet GMC (82 mi away)
Close
Located in Castle Rock, CO / 82 miles away from Fort Collins, CO
Carfax No Accidents, Sierra 1500 SLT, 4D Crew Cab, EcoTec3 5.3L V8, 8-Speed Automatic, 4WD, Onyx Black, Jet Black Leather, 120-Volt Bed Mounted Power ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
17 Combined MPG (15 City/21 Highway)
Listing Information:
VIN: 1GTU9DED2KZ119886
Stock: KZ119886T
Certified Pre-Owned: No
Listed since: 04-19-2025 - $20,500
- 127,873 miles
- No accidents, 1 owner, personal use
- Driveway (165 mi away)
- Home delivery*
Close
Located in Casper, WY / 165 miles away from Fort Collins, CO
CarFax No Accidents Reported,High Demand
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU2MEC0HG385122
Stock: 8227CF
Certified Pre-Owned: No - 110,290 miles
- No accidents, 2 owners, personal use only
- 6'7” bed, 6.2l, 8cyl
- AutoNation Buick GMC West (56 mi away)
- Home delivery*
Close
Located in Golden, CO / 56 miles away from Fort Collins, CO
Engine; 6.2L Ecotec3 V8Navigation SystemKeyless StartCooled Front Seat(S)This vehicle includes a Money-Back Guarantee* and passed our precise in...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9FEL7KZ379834
Stock: KZ379834
Certified Pre-Owned: No
Listed since: 03-26-2025- Price Drop
- 181,081 miles
- 2 accidents, 1 owner, corporate fleet vehicle
- 6'7” bed, 5.3l, 8cyl
- Skyline Mitsubishi (45 mi away)
- Home delivery*
Close
Located in Thornton, CO / 45 miles away from Fort Collins, CO
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: No
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2MEC2HG260123
Stock: 20348
Certified Pre-Owned: No
Listed since: 11-02-2024 - New Listing
- 49,298 miles
- No accidents, 1 owner, personal use only
- 5'9” bed, 5.3l, 8cyl
- CarMax Parker (70 mi away)
Close
Located in Parker, CO / 70 miles away from Fort Collins, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU2NEC0HG198565
Stock: 26959164
Certified Pre-Owned: No - Price Drop$32,998great price$5,627 below market
- 98,754 miles
- No accidents, 4 owners, personal use
- 5'10” bed, 5.3l, 8cyl
- CarMax South Broadway (64 mi away)
Close
Located in Littleton, CO / 64 miles away from Fort Collins, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
19 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU9DEDXLG110063
Stock: 26869357
Certified Pre-Owned: No
Showing 1 - 21 out of 992 listings
Consumer Reviews for the GMCÂ Sierra 1500
Read recent reviews for the GMCÂ Sierra 1500
Rethink the 8sp trans.
Don P, 06/21/2018
2018 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 6.5 ft. SB (5.3L 8cyl 6A)
18' GMC has the best looks, ride is good, stability in wind is amazing. I love the comfort and they made the cabin very quiet, road noise is not noticed. That said, the 8spd trans clunks, bangs 2nd to 3rd to 4th. Under throttle I hear no issues, city driving idling along, say 10 15mph, roll on and off the throttle and there are serious bangs going on, up and down. Its reminds me of a old … drive line ready to spit u joints at any time, its not in the rear end(ring n pinion lash), seems to be in the tranny. I have parked the truck, sits for +-2hrs, level, on start up the rear tires jerk the truck hard, defiantly gets your attention. Does this about once every 10 15 start ups. Took to the dealer and of course they say there is nothing wrong. Do your homework, look on social media about the 8spd trans, they are a problem. Buyer beware. Such a shame, love the truck otherwise.
Used 2018 GMC Sierra 1500 in Fort Collins, CO Values
Estimated values
2018 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 5.8 ft. SB (6.2L 8cyl 8A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $26,668 | $30,034 | $32,797 |
| Clean | $25,932 | $29,196 | $31,871 |
| Average | $24,706 | $27,798 | $30,328 |
| Rough | $23,111 | $25,982 | $28,322 |
The average list price of a used 2018 GMC Sierra 1500 in Fort Collins, Colorado is $31,255. The average mileage on a used GMC Sierra 1500 2018 for sale in Fort Collins, Colorado is 94,648. Based on the average mileage of 94,648 for used 2018 GMC Sierra 1500 for sale in Fort Collins, CO and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Sierra 1500 2018 in Fort Collins, Colorado to be $24,706.
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