CarGurus Logo Homepage Link
  • Buy
    • Used cars
    • New cars
    • Certified pre-owned
    • Start your purchase online
    • Dealerships near me
  • Sell
    • Sell my car
    • Car values
    • Sell my car FAQs
  • Finance
    • Prequalify for financing
    • How does it work?
    • Financing FAQs
  • Research
    • Test drive reviews
    • Price trends
    • Tips & advice
    • Electric cars
    • Compare cars
  • Discover
    The latest way to shop:
    smarter research, better
    listings.
  • Saved cars & searches
  • Sign in / Register
    • My account
    • Saved searches
    • Saved cars
    • Recommended cars
    • Browsing history
    • Financing dashboard
      • United States (EN)
      • Estados Unidos (ES)
      • Canada (EN)
      • Canada (FR)
      • United Kingdom

Used 1998 GMC Sierra 1500 SLT for Sale near Unity, ME

281 results
Unity, ME
2018 GMC Sierra 1500 SLT Double Cab 4WD K & R Auto Sales

2018 GMC Sierra 1500

SLT Double Cab 4WD

99,151 miles

$26,734

Fair Deal
Auburn, ME
55 mi away
Year:
2018
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:
99,151
Stock number:
P18554
VIN:
1GTV2NECXJZ259981

Sponsored

2024 GMC Sierra 1500 SLT Crew Cab 4WD

2024 GMC Sierra 1500

SLT Crew Cab 4WD

45,449 miles

$44,950

Fair Deal
Waldoboro, ME
35 mi away
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:
White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
45,449
Stock number:
P2285
VIN:
3GTUUDED5RG334428

Sponsored

2016 GMC Sierra 1500 SLT Crew Cab 4WD

2016 GMC Sierra 1500

SLT Crew Cab 4WD

96,896 miles

$27,517

Fair Deal
Searsport, ME
24 mi away
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:
White
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
96,896
Stock number:
5612
VIN:
3GTU2NEC2GG276570

Sponsored

2019 GMC Sierra 1500 SLT Crew Cab 4WD

2019 GMC Sierra 1500

SLT Crew Cab 4WD

102,852 miles

$26,955

Great Deal
Searsport, ME
24 mi away
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:
Black
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
102,852
Stock number:
5615
VIN:
1GTU9DED2KZ117166

2021 GMC Sierra 1500 SLT Crew Cab 4WD

2021 GMC Sierra 1500

SLT Crew Cab 4WD

42,708 miles

$42,497

Fair Deal
Store transfer to South Portland, ME
1,670 mi away • Price includes $1,499 shipping Price includes $1,499 shipping
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
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
42,708
Stock number:
28032096
VIN:
3GTU9DED5MG374258

2016 GMC Sierra 1500 SLT Crew Cab 4WD

2016 GMC Sierra 1500

SLT Crew Cab 4WD

96,896 miles

$27,517

Fair Deal
Searsport, ME
24 mi away
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:
White
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
96,896
Stock number:
5612
VIN:
3GTU2NEC2GG276570

Preparing for a close up...

Photos coming soon

2017 GMC Sierra 1500

SLT Double Cab 4WD

88,116 miles

$23,990

Good Deal
Oakland, ME
19 mi away
Year:
2017
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Blue
Combined gas mileage:
19 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
88,116
Stock number:
11377
VIN:
1GTV2NEC4HZ213802

Preparing for a close up...

Photos coming soon

2016 GMC Sierra 1500

SLT Double Cab 4WD

90,337 miles

$22,990

Good Deal
Oakland, ME
19 mi away
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:
Gray
Combined gas mileage:
19 MPG
Fuel type:
Gasoline
Interior color:
Gray
Transmission:
Automatic
Mileage:
90,337
Stock number:
11362
VIN:
1GTV2MEC1GZ129140

Preparing for a close up...

Photos coming soon

2020 GMC Sierra 1500

SLT Crew Cab 4WD

44,215 miles

$39,985

Fair Deal
Westbrook, ME
81 mi away
Year:
2020
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:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
44,215
Stock number:
5GM0839T
VIN:
3GTU9DED6LG256816

Preparing for a close up...

Photos coming soon

2016 GMC Sierra 1500

SLT Double Cab 4WD

70,611 miles

$24,990

Good Deal
Oakland, ME
19 mi away
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:
Blue
Combined gas mileage:
19 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
70,611
Stock number:
11382
VIN:
1GTV2NEC8GZ379447

Preparing for a close up...

Photos coming soon

2020 GMC Sierra 1500

SLT Crew Cab 4WD

99,340 miles

$29,999

Great Deal
Windham, ME
76 mi away
Year:
2020
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
Transmission:
Automatic
Mileage:
99,340
Stock number:
LG275349
VIN:
3GTU9DED8LG275349

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

SLT Crew Cab 4WD

71,658 miles

$36,995

Good Deal
Windham, ME
76 mi away
Year:
2021
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:
71,658
Stock number:
MG428220
VIN:
3GTU9DEL0MG428220

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

SLT Crew Cab 4WD

71,658 miles

$36,995

Good Deal
Windham, ME
76 mi away
Year:
2021
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:
71,658
Stock number:
MG428220
VIN:
3GTU9DEL0MG428220

Sponsored

  1. Home
  2. / Used Cars
  3. / GMC Sierra 1500
  4. / SLT
  5. / Maine
  6. / Unity
Reviews
FAQs

4.7 Overall rating

(3 reviews)
Seth A
5.0
Reviewed a 1998 GMC C1500 SLT Standard Cab LB on Jan 13, 2008

Good solid truck I use it to haul around all my horseshoeing tools works well and will carry a load

Christopher P
5.0
Reviewed a 1998 GMC K1500 SLT 4WD Extended Cab Stepside SB on Jun 30, 2008

Gas can be a problem and its got some of those features that come with age but it is very dependable.

Dylan K
4.0
Reviewed a 1998 GMC K1500 SLT 4WD Extended Cab SB on Mar 25, 2008

fast no govner never had it stuck and never will this truck has BALLS big ones. Will burn rubber for 2 blocks

GMC Sierra 1500 SLT FAQs

How many GMC Sierra 1500 SLT vehicles in Unity, ME have no reported accidents or damage?

211 out of 270 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 MPGe).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

  • 2001 GMC Sierra 1500 SLT in Unity ME

  • 2000 GMC Sierra 1500 SLT in Unity ME

  • 1999 GMC Sierra 1500 SLT in Unity ME

  • 1997 GMC Sierra 1500 SLT in Unity ME

  • 1996 GMC Sierra 1500 SLT in Unity ME

  • 1995 GMC Sierra 1500 SLT in Unity ME

  • All Used Cars

  • Manual Transmission Cars

  • Luxury Cars

  • Cars with Red Interior

  • Cheap Manual Cars

  • Hybrid Cars

  • Sports Cars

  • Electric SUVs

  • Cheap Trucks

  • Small Cars

  • Third Row SUVs

  • Three Quarter Ton Trucks

  • Lifted Trucks

  • Manual Transmission Trucks

  • Diesel Trucks

  • Hybrid SUVs

  • Dually Trucks

  • One Ton Trucks

  • Cheap SUVs

  • Lifted Ford Trucks

  • 4x4 Trucks

  • Work Trucks

  • AWD SUVs

  • Ford Trucks

  • Chevrolet Trucks

  • Toyota Trucks

  • Trucks Under $10,000

  • Cars Under $15,000

  • Sports Cars Under $20,000

  • Trucks Under $20,000

  • Used Sedans for Sale with Low Mileage

  • Used SUVs / Crossovers for Sale with Low Mileage

  • Used Hatchbacks for Sale with Low Mileage

  • Used Convertibles for Sale with Low Mileage

  • Used Vans for Sale with Low Mileage

  • Used Minivans for Sale with Low Mileage

  • Used Pickup Trucks for Sale with Low Mileage

  • Used Coupes for Sale with Low Mileage

  • Used Wagons for Sale with Low Mileage

Connect with us
Download our app
Download on the App Store Get it on Google Play
  • Company
  • About CarGurus
  • Our team
  • Press
  • Investor relations
  • Price trends
  • Careers
  • Advertise with CarGurus
  • For dealers
  • Dealer signup
  • Dealer resources
  • Terms
  • Terms of use
  • Privacy policy
  • Interest-based ads
  • Security
  • Help
  • Help center
  • Contact us
Click for the BBB Business Review of this Auto Listing Service in Cambridge MA
    • United States (EN)
    • Estados Unidos (ES)
    • Canada (EN)
    • Canada (FR)
    • United Kingdom

© 2025 CarGurus, Inc., All Rights Reserved.