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 1994 GMC Sierra 1500 SLT for Sale near Unity, ME

236 results
Unity, ME
2019 GMC Sierra 1500 SLT Crew Cab 4WD Casco Bay Ford

2019 GMC Sierra 1500

SLT Crew Cab 4WD

84,839 miles

$31,485

Good Deal
Certified Pre-Owned
Yarmouth, ME
68 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:
Quicksilver Metallic
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Transmission:
8-Speed Automatic
Mileage:
84,839
Stock number:
S682B
VIN:
3GTU9DED5KG302926

Sponsored

2024 GMC Sierra 1500 SLT Crew Cab 4WD

2024 GMC Sierra 1500

SLT Crew Cab 4WD

32,724 miles

$47,891

Fair Deal
Auburn, ME
55 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:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
32,724
Stock number:
P18520
VIN:
3GTUUDED2RG322138

Sponsored

2024 GMC Sierra 1500 SLT Crew Cab 4WD

2024 GMC Sierra 1500

SLT Crew Cab 4WD

64,399 miles

$37,636

Great Deal
Certified Pre-Owned
South Portland, ME
81 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 Frost Tricoat
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
64,399
Stock number:
T366-2AA
VIN:
3GTUUDED8RG114359

Sponsored

2019 GMC Sierra 1500 SLT Crew Cab 4WD

2019 GMC Sierra 1500

SLT Crew Cab 4WD

70,757 miles

$33,980

Good Deal
Westbrook, ME
81 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:
White
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
70,757
Stock number:
6GM0203T
VIN:
3GTU9DED9KG296337

2024 GMC Sierra 1500 SLT Crew Cab 4WD

2024 GMC Sierra 1500

SLT Crew Cab 4WD

64,399 miles

$37,636

Great Deal
Certified Pre-Owned
South Portland, ME
81 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 Frost Tricoat
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
64,399
Stock number:
T366-2AA
VIN:
3GTUUDED8RG114359

2014 GMC Sierra 1500 SLT Crew Cab

2014 GMC Sierra 1500

SLT Crew Cab

124,944 miles

$17,987

Good Deal
South Paris, ME
64 mi away
Year:
2014
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
5.3L V8 Flex Fuel Vehicle
Exterior color:
White Diamond Tricoat
Combined gas mileage:
19 MPG
Fuel type:
Flex Fuel Vehicle
Interior color:
Cocoa/Dune
Transmission:
6-Speed Automatic Overdrive
Mileage:
124,944
Stock number:
P2543
VIN:
3GTP1VECXEG550353

Preparing for a close up...

Photos coming soon

2019 GMC Sierra 1500

SLT Crew Cab 4WD

84,839 miles

$31,485

Good Deal
Certified Pre-Owned
Yarmouth, ME
68 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:
Quicksilver Metallic
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Transmission:
8-Speed Automatic
Mileage:
84,839
Stock number:
S682B
VIN:
3GTU9DED5KG302926

Preparing for a close up...

Photos coming soon

2016 GMC Sierra 1500

SLT Crew Cab 4WD

125,883 miles

$18,894

Great Deal
Warren, ME
34 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:
BURGUN
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
125,883
Stock number:
10113
VIN:
3GTU2NEC1GG177691

Preparing for a close up...

Photos coming soon

2022 GMC Sierra 1500

SLT Crew Cab 4WD

72,483 miles

$39,597

Good Deal
Store transfer to South Portland, ME
832 mi away • Price includes $599 shipping Price includes $599 shipping
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
White
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Gray
Transmission:
Automatic
Mileage:
72,483
Stock number:
27652603
VIN:
3GTUUDET2NG561058

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

5 Overall rating

(2 reviews)
Scott J
5.0
Reviewed a 1994 GMC K1500 SLT 4WD Extended Cab SB on Feb 01, 2009

The old GMC K1500 4WD, About as fast as one could expect for a 5.7L V8 that barely puts out 200hp. Build Quility, one word: SOLID. Apperance is average, we all know one of these trucks when we see them. You either love it or hate it. Gas mileage, well, does that matter with a truck? Lets be honest here, if your worried about MPG, then you don't need a truck. Fun factor, in RWD mode, its a blast in the winter, 4WD is like driving on rails. Pretty straight forward here.

Adam O
5.0
Reviewed a 1994 GMC C1500 SLT Extended Cab SB on Oct 06, 2008

Thirty+ miles per gallon at fifty-five miles per hour! K&N air filter, cap, rotor, module in the distributor, throttle positioning sensor, spark plugs and wires on a 350 first Gen. Small Block V-8. The only problem is the Michigan rust. New Y-pipe back three inch exhaust. Plans are to go with air ride, K&N cold air intake, and maybe Baer Extreme Plus six piston caliper brakes.

GMC Sierra 1500 SLT FAQs

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

156 out of 219 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 16 and 24 MPG (or EV battery range).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

  • 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

© 2026 CarGurus, Inc., All Rights Reserved.