Used GMC Sierra 1500 SLT for Sale nearUnity, ME
281 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 28,389
- Stock #:
- 163127T
- VIN:
- 3GTUUDED1RG163127
Sponsored by Ecodrive Chevrolet GMC
2024 GMC Sierra 1500
SLT Crew Cab 4WD
28,389 mi
Gorham, NH
92 mi away
Good Deal
$45,789
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 49,950
- Stock #:
- GT159912
- VIN:
- 3GTUUDEL5PG159912
Sponsored Listing
2023 GMC Sierra 1500
SLT Crew Cab 4WD
49,950 mi
Auburn, ME
55 mi away
Fair Deal
$46,149
- Year:
- 2016
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black/Spice Red
- Transmission:
- Automatic
- Mileage:
- 84,255
- Stock #:
- P18980
- VIN:
- 1GTV2NEC9GZ384429
Sponsored Listing
2016 GMC Sierra 1500
SLT Double Cab 4WD
84,255 mi
Auburn, ME
55 mi away
Fair Deal
$25,661
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Titanium Rush Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 43,143
- Stock #:
- 214398
- VIN:
- 1GTUUDEDXSZ182619
2025 GMC Sierra 1500
SLT Crew Cab 4WD
43,143 mi
Home delivery from Kansas City, KS
Price includes $2,032 shipping
Good Deal
$44,226
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 49,470
- Stock #:
- 6GM0983T
- VIN:
- 3GTUUDED0NG647946
2022 GMC Sierra 1500
SLT Crew Cab 4WD
49,470 mi
Westbrook, ME
81 mi away
Good Deal
$42,828
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 28,389
- Stock #:
- 163127T
- VIN:
- 3GTUUDED1RG163127
2024 GMC Sierra 1500
SLT Crew Cab 4WD
28,389 mi
Gorham, NH
92 mi away
Good Deal
$45,789
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 89,753
- Stock #:
- 1931
- VIN:
- 3GTU2NECXJG308768
2018 GMC Sierra 1500
SLT Crew Cab 4WD
89,753 mi
Raymond, ME
75 mi away
Fair Deal
$28,528
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Gray
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 70,484
- Stock #:
- 28956229
- VIN:
- 3GTUUDE87PG253771
2023 GMC Sierra 1500
SLT Crew Cab 4WD
70,484 mi
Store transfer to South Portland, ME
Price includes $1,299 shipping
Fair Deal
$42,297
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 178,713
- Stock #:
- AT-394394
- VIN:
- 3GTU2VEC8FG394394
New arrival
2015 GMC Sierra 1500
SLT Crew Cab 4WD
178,713 mi
Home delivery from Oswego, IL
Price includes $1,462 shipping
Fair Deal
$17,807
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 121,271
- Stock #:
- TW775
- VIN:
- 1GTV2VEC4FZ356391
Price drop
-$1,000
2015 GMC Sierra 1500
SLT Double Cab 4WD
121,271 mi
Home delivery from Kingston, NH
Price includes $214 shipping
Good Deal
$19,509
$18,508
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Green
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 84,008
- Stock #:
- U456184
- VIN:
- 3GTU2VEC3EG456184
2014 GMC Sierra 1500
SLT Crew Cab 4WD
84,008 mi
Union, ME
27 mi away
Good Deal
$22,711
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 91,309
- Stock #:
- MKZ238750
- VIN:
- 1GTU9DED2KZ238750
2019 GMC Sierra 1500
SLT Crew Cab 4WD
91,309 mi
Home delivery from Edison, NJ
Price includes $758 shipping
Great Deal
$31,752
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White Frost Tricoat
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 62,347
- Stock #:
- 132653A
- VIN:
- 3GTU9DED7MG132653
2021 GMC Sierra 1500
SLT Crew Cab 4WD
62,347 mi
Home delivery from Indianapolis, IN
Price includes $1,364 shipping
Good Deal
$38,599
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 42,930
- Stock #:
- 331087
- VIN:
- 3GTU9DED0LG331087
2020 GMC Sierra 1500
SLT Crew Cab 4WD
42,930 mi
Home delivery from Frederick, CO
Price includes $1,831 shipping
Fair Deal
$39,823
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 59,137
- Stock #:
- 262154A
- VIN:
- 3GTU9DET2LG206941
2020 GMC Sierra 1500
SLT Crew Cab 4WD
59,137 mi
Home delivery from Kernersville, NC
Price includes $1,622 shipping
Good Deal
$38,006
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 36,049
- Stock #:
- K87823
- VIN:
- 1GTUUDE88RZ275443
2024 GMC Sierra 1500
SLT Crew Cab 4WD
36,049 mi
Home delivery from Herculaneum, MO
Price includes $2,340 shipping
Good Deal
$46,440
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 28,828
- Stock #:
- 6KS0020P
- VIN:
- 3GTUUDED5SG189901
2025 GMC Sierra 1500
SLT Crew Cab 4WD
28,828 mi
Saco, ME
91 mi away
Great Deal
$42,499
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Green
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 110,892
- Stock #:
- 340335
- VIN:
- 1GTV2VEC4EZ340335
2014 GMC Sierra 1500
SLT Double Cab 4WD
110,892 mi
Windham, ME
76 mi away
Good Deal
$17,699
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 82,720
- Stock #:
- 7257A
- VIN:
- 3GTU9DEL5KG170242
2019 GMC Sierra 1500
SLT Crew Cab 4WD
82,720 mi
South Portland, ME
81 mi away
Fair Deal
$34,355
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Brown
- Interior color:
- Black
- Mileage:
- 122,140
- Stock #:
- 4280
- VIN:
- 1GTU9DEL3LZ107349
2020 GMC Sierra 1500
SLT Crew Cab 4WD
122,140 mi
Home delivery from Yakima, WA
Price includes $3,639 shipping
Good Deal
$32,246
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 25,388
- Stock #:
- 6GM1114T
- VIN:
- 3GTUUDE81RG273355
New arrival
2024 GMC Sierra 1500
SLT Crew Cab 4WD
25,388 mi
Westbrook, ME
81 mi away
Fair Deal
$49,584
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 56,661
- Stock #:
- 6GM1112T
- VIN:
- 3GTU2VEC0FG396608
New arrival
2015 GMC Sierra 1500
SLT Crew Cab 4WD
56,661 mi
Westbrook, ME
81 mi away
Good Deal
$27,584
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 33,626
- Stock #:
- 70190351
- VIN:
- 3GTU9DED0MG207340
2021 GMC Sierra 1500
SLT Crew Cab 4WD
33,626 mi
Store transfer to South Portland, ME
Price includes $1,499 shipping
Fair Deal
$42,497
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 33,504
- Stock #:
- 6KS0022P
- VIN:
- 3GTUUDED8SG198902
Price drop
-$1,080
Sponsored Listing
2025 GMC Sierra 1500
SLT Crew Cab 4WD
33,504 mi
Saco, ME
91 mi away
Good Deal
$44,529
$43,449
FAQs
How much does the GMC Sierra 1500 SLT cost in Unity, ME?
The average GMC Sierra 1500 SLT costs about $11,430.90. The average price has increased by 0.7% since last year. The 269 for sale near Unity, ME on CarGurus, range from $12,591 to $76,891 in price.
How many GMC Sierra 1500 SLT vehicles in Unity, ME have no reported accidents or damage?
200 out of 269 for sale near Unity, ME have no reported accidents or damage.
What is the fuel economy of the GMC Sierra 1500 SLT?
Depending on the engine and options, the GMC Sierra 1500 SLT gets between 14 and 24 MPG (or EV battery range).
What fuel types are available?
Diesel, Flex Fuel Vehicle, Gasoline engines are available.
Relevant articles
CarGurus Editorial Team
Best Truck Lease Deals in August 2026
Leasing a truck can be a great way to get into one of the latest models, with the best technology, at a more affordable monthly price. Here are the best deals we've found this month.
CarGurus Editorial Team
Best Car Deals in August 2026
In the market for a new or used car this year? Whether you’re looking to buy or lease, we’ve collated a list of the best car deals available this month.
CarGurus Editorial Team
The Best Gas Mileage Trucks of 2026
No one wants to cover unnecessary fuel expenses, particularly when operating a business. Here are the top 9 pickup trucks in the US market with the best fuel efficiency.
GMC Sierra 1500 SLT in Unity MEGMC Sierra 1500 Denali in Unity MEGMC Sierra 1500 AT4 in Unity MEGMC Sierra 1500 Elevation in Unity MEGMC Sierra 1500 SLE in Unity MEGMC Sierra 1500 Base in Unity MEGMC Sierra 1500 Work Truck in Unity MEGMC Sierra 1500 SLE1 in Unity MEGMC Sierra 1500 SL in Unity MEGMC Sierra 1500 SLE2 in Unity ME
GMC Sierra 1500 in Unity MEOBS 1990s-era Chevy and Ford Trucks for Sale in Unity MEUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Unity MEWork Trucks for Sale in Unity MEAmerican Made Trucks For Sale in Unity MEGM Certified Preowned Vehicles for Sale Near Unity MEBest Pickup Trucks For Sale in Unity ME
All Used CarsManual Transmission CarsLuxury CarsCars with Red InteriorCheap Manual CarsHybrid CarsSports CarsElectric SUVsCheap TrucksSmall CarsThird Row SUVsThree Quarter Ton TrucksLifted TrucksManual Transmission TrucksDiesel TrucksHybrid SUVsDually TrucksOne Ton TrucksCheap SUVsLifted Ford Trucks4x4 TrucksWork TrucksAWD SUVsFord TrucksChevrolet TrucksToyota TrucksTrucks Under $10,000Cars Under $15,000Sports Cars Under $20,000Trucks Under $20,000Used Sedans for Sale with Low Mileage in UnityUsed SUVs / Crossovers for Sale with Low Mileage in UnityUsed Hatchbacks for Sale with Low Mileage in UnityUsed Convertibles for Sale with Low Mileage in UnityUsed Vans for Sale with Low Mileage in UnityUsed Minivans for Sale with Low Mileage in UnityUsed Pickup Trucks for Sale with Low Mileage in UnityUsed Coupes for Sale with Low Mileage in UnityUsed Wagons for Sale with Low Mileage in Unity
