
2026 GMC Sierra 2500HD
Mileage: 6 · Westbrook, ME
2026 GMC Sierra 2500HD AT4 Crew Cab 4WD
Westbrook, ME
$89,839
MSRP
Dealer rating
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Features
Mileage
6
Drivetrain
Four-Wheel Drive
Exterior color
Sterling Metallic
Interior color
Jet Black With Kalahari Accents, Perforated Front
Engine
470 hp 6.6L V8 Biodiesel
Fuel type
Biodiesel
Transmission
Automatic
CarPlay
Finance in advance
Overview
- Make:GMC
- Model:Sierra 2500HD
- Year:2026
- Trim:AT4
- Body type:Pickup Truck
- Exterior color:Sterling Metallic
- Interior color:Jet Black With Kalahari Accents, Perforated Front
- Mileage:6 mi
- Condition:New
- VIN:1GT4UPEY1TF264388
- Stock number:6GM25018
Fuel economy
- Fuel tank size:35 gal
- Fuel type:Biodiesel
Performance
- Transmission:Automatic
- Drivetrain:Four-Wheel Drive
- Engine:470 hp 6.6L V8 Biodiesel
- Horsepower:470 hp
Safety
- ABS Brakes
- Curtain Airbags
- Driver Airbag
- Front Side Airbags
- Passenger Airbag
Measurements
- Doors:4 doors
- Front legroom:44 in
- Back legroom:43 in
- Cabin size:Crew Cab
- Cargo volume:82 in
History
Clean title
No issues reported.
0 accidents reported
No accidents or damage reported.
Pricing

Price decreased
44 days at this dealership
Dealer

Dealer reviews
Dealer's description
This GMC Sierra 2500HD delivers a Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission. ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), Wireless Phone Projection for Apple CarPlay and Android Auto, Wireless Charging. This GMC Sierra 2500HD Features the Following Options Wipers, front rain-sensing, Windows, power rear, express down, Windows, power front, drivers express up/down, Window, power front, passenger express up/down, Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.), Wheels, 20 (50.8 cm) High Gloss black aluminum wheels 8 spokes, Wheelhouse liners, rear, USB Ports, 2, Charge/Data ports located inside center console, USB Ports, 2 (first row) located on console, USB ports, (2) charge-only, rear.
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