CarGurus Logo Homepage Link
  • Buy
    • Used cars
    • New cars
    • Certified pre-owned
    • Start your purchase online
  • Sell
    • Sell my car
    • Car values
  • Research
    • Test drive reviews
    • Price trends
    • Compare cars
  • Saved cars & searches
  • Sign in / Register
    • My account
    • Saved searches
    • Saved cars
    • Recommended cars
    • Browsing history
      • United States (EN)
      • Estados Unidos (ES)
      • Canada (EN)
      • Canada (FR)
      • United Kingdom

New GMC Sierra 2500HD Denali for Sale near Seguin, ON

144 results
Parry Sound, ON

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$101,619

Whitby, ON
185 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior colour:
Black
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
F272713
VIN:
1GT4URE70TF272713

2026 GMC Sierra 2500HD Denali Crew Cab 4WD

2026 GMC Sierra 2500HD

New car

$102,998

Grimsby, ON
244 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior colour:
White
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
12
Stock number:
T305
VIN:
1GT4URE78TF204806

2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC Sierra 2500HD

New car

$103,656

Collingwood, ON
95 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
GXD Sterling Metallic
Fuel type:
Biodiesel
Interior colour:
H2X Jet Black
Transmission:
Automatic
Mileage:
9
Stock number:
25408
VIN:
1GT4UREY0SF366047

2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC Sierra 2500HD

New car

$104,221

Collingwood, ON
95 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
GAZ Summit White
Fuel type:
Biodiesel
Interior colour:
H24 Atmosphere/brownstone
Transmission:
Automatic
Mileage:
8
Stock number:
25406
VIN:
1GT4UREY5SF367744

2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC Sierra 2500HD

New car

$106,286

Collingwood, ON
95 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
GAZ Summit White
Fuel type:
Biodiesel
Interior colour:
H24 Atmosphere/brownstone
Transmission:
Automatic
Mileage:
9
Stock number:
25407
VIN:
1GT4UREY5SF367548

2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC Sierra 2500HD

New car

$107,041

Oakville, ON
214 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior colour:
White
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
35
Stock number:
SR25117F
VIN:
1GT4URE75SF336257

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 2500HD

New car

$108,112

Newmarket, ON
149 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Black
Fuel type:
Biodiesel
Transmission:
Automatic
Mileage:
0
Stock number:
F354127
VIN:
1GT1UREY0SF354127

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$109,164

Bolton, ON
168 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Black
Fuel type:
Biodiesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
11
Stock number:
106929
VIN:
1GT4UREY4TF106929

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 2500HD

New car

$109,670

Kitchener, ON
217 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Black
Fuel type:
Biodiesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
17
Stock number:
257430
VIN:
1GT4UREY8SF278864

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 2500HD

New car

$110,411

Bracebridge, ON
67 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior colour:
Black
Interior colour:
Black
Transmission:
Automatic
Mileage:
15
Stock number:
25444
VIN:
1GT4UREY8SF302497

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$110,888

Richmond Hill, ON
169 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Black
Fuel type:
Biodiesel
Transmission:
Automatic
Mileage:
10
Stock number:
TF232228
VIN:
1GT4UREY1TF232228

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$111,059

Haliburton, ON
124 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior colour:
Black
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
26130
VIN:
1GT4URE77TF122601

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$111,933

Whitby, ON
185 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Black
Fuel type:
Biodiesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
F163703
VIN:
1GT4UREYXTF163703

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$111,966

Collingwood, ON
95 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
ONYX BLACK
Fuel type:
Biodiesel
Interior colour:
Jet Black
Transmission:
Automatic
Mileage:
190
Stock number:
TT199
VIN:
1GT4UREY2TF248583

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 2500HD

New car

$111,980

Belleville, ON
243 km away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Black
Fuel type:
Biodiesel
Transmission:
Automatic
Mileage:
5
Stock number:
SF302476
VIN:
1GT4UREY0SF302476

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$112,154

Port Perry, ON
101 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
White
Fuel type:
Biodiesel
Interior colour:
Black
Transmission:
Automatic
Mileage:
99
Stock number:
F219746
VIN:
1GT4UREY2TF219746

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$112,254

Haliburton, ON
124 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior colour:
White
Fuel type:
Gasoline
Interior colour:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
26112
VIN:
1GT4URE73TF122577

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car

$112,281

Collingwood, ON
95 km away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior colour:
Downpour Metallic
Fuel type:
Biodiesel
Interior colour:
H2X Jet Black
Transmission:
Automatic
Mileage:
9
Stock number:
26045
VIN:
1GT4UREY4TF104226

  1. Home
  2. / New Cars
  3. / GMC Sierra 2500HD
  4. / Denali
  5. / Ontario
  6. / Seguin
FAQs

GMC Sierra 2500HD Denali FAQs

What fuel types are available?

Biodiesel engines are available.

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
  • Advertise with CarGurus
  • For dealers
  • Dealer signup
  • Dealer resources
  • Terms
  • Terms of use
  • Privacy policy
  • Interest-based ads
  • Security
  • Help
  • Help center
  • Contact us
    • United States (EN)
    • Estados Unidos (ES)
    • Canada (EN)
    • Canada (FR)
    • United Kingdom

© 2026 CarGurus, Inc., All Rights Reserved.