New 2026 GMC Sierra 3500HD Denali Ultimate
- Truck
- Pickup
- Crew Cab
- Luxury
- Very Comfortable
- Heavy Hauler
- Extended Front Legroom
- Condition
- New
- Mileage
- 5miles
- Aggregate Ratings
- 44 out of 5 stars
- Generation
- 4(2020 - 2026)
- Trim
- Denali Ultimate
- Drivetrain
- 4X4
- Transmission
- 10-Speed Shiftable Automatic
- Exterior Color
- Glacier White Tricoat (White)Factory Paint Code:G4J
- Interior Color
- Alpine Umber (Brown & Beige)Factory Paint Code:H40
- Size Segment
- Heavy Duty
- Doors
- 4
- Max Seating
- 5
- Max Towing Capacity
- 20,000lbs.
- Final Assembly Point
- Flint, Michigan
- VIN
- 1GT4UYEYXTF253962
Engine6.6L V8 Bio Diesel 470hp
- Fuel Type:Bio Diesel
- Max Horsepower:470 hp @ 2800 rpm
- Max Torque:975 ft.lbf @ 1600 rpm
- Brand:Duramax
- Displacement:6.6liters
- Block Type:V
- Cylinders:8
- Aspiration:Turbo
- Fuel Induction:Common Rail Direct Injection
- Oil Capacity:9.5liters
- Cam Type:OHV
- Stroke:3.9
- Bore:4.06
- Valves:32
Message from the seller
Heated Leather Seats, Nav System, Moonroof, 4x4, Aluminum Wheels, Bed Liner, Hitch, AUDIO SYSTEM, 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM. Denali Ultimate trim, Glacier White Tricoat exterior and Alpine Umber interior.
KEY FEATURES INCLUDE
Leather Seats, Sunroof, 4x4, Heated Driver Seat, Heated Rear Seat
OPTION PACKAGES
GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness). GVWR, 14,000 LBS. (6350 KG) WITH DUAL REAR WHEELS, AUDIO SYSTEM, 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM with Google built in apps such as navigation and voice assistance, includes color touch-screen, multi-touch display, AM/FM stereo, Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto® and Apple CarPlay® capability for compatible phones. (STD), 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) (STD), TRANSMISSION, 10-SPEED AUTOMATIC (STD).
WHY BUY FROM US
Buy with confidence at Group 1 where every used vehicle, up to 175,000 miles, comes with a one month 1,000-mile limited warranty along with a 3-day 250-mile exchange policy. Some exclusions may apply, see Buyers Guide for specifics. Every vehicle is priced to market and includes a Carfax History Report.
BUY FROM AN AWARD WINNING DEALER
When it comes to second-to-none service, you can rely on the GMC dealer near me. GMC fans and those new to the brand around Rockville Centre, New York, will appreciate the services from start to finish that we offer.
Please confirm the accuracy of the included equipment by calling us prior to purchase.
This New 2026 GMC Sierra 3500HD Denali Ultimate is available for drivers in Brooklyn, New York, Bronx, Jersey City, Jamaica, Flushing, Yonkers, Astoria ...


