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Mileage
6
O'Neil GMC
869 W Street Road, Warminster, PA, 18974Vehicle Basics
MPG City/Hwy
No data
Drivetrain
Four Wheel Drive
Transmission
Automatic
Mileage
6
Exterior Color
Gray
Interior Color
Black
Fuel Type
Diesel
Engine
8 Cylinder Engine
Stock
T271
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Feature Highlights
technology
- Backup Camera
- Keyless Entry
- Keyless Start
- Premium Sound System
safety
- Adaptive Cruise Control
- Automatic Emergency Braking
- Blind Spot Monitor
- Brake Assist
interior
- Cooled Driver Seat
- Cooled Passenger Seat
- Dual Climate Control
- Heated Seats
exterior
- Rain Sensing Front Wipers
- Trailer Hitch
View All Specifications and Features
Seller's Notes
Sterling Metallic 2026 GMC Sierra 3500HD SLT 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel This 2026 GMC Sierra 3500HD SLT in Sterling Metallic features: O'Neil GMC in Warminster serving Philadelphia since 1965. See the rest of our inventory at ONEILGMC.COM. Price excludes tax, tags, title, license, and dealer fees, additional rebates may apply, but internet price does include the following rebates:$1000 - Buick & GMC Consumer Cash Program. Exp. 06/30/2026 $500 - GM Rewards Card Sales Sign Up and Spend Offer. Exp. 09/30/2026 $3,500 - O'Neil GMC Discount Available to all customers. Excl. Pro & AT4X. Exp. 06/30/2026
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