New 2026 GMC Sierra 2500HD Denali
10-Speed Automatic
Vehicle Summary
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Sterling Metallic
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Jet Black
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VIN 1GT4UREY1TF381268
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Stock # 56557
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Condition New
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Exterior Sterling Metallic
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Interior Jet Black
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Engine Duramax 6.6L V8 Turbodiesel
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Fuel Type
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Drivetrain 4x4
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Transmission 10-Speed Automatic
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Location Riverhead Ford
Mileage
Miles
Performance
HP
Torque
Key Features
Collision Avoidance
Backup Camera
Tow Package
Lane Departure Warning
Rear Cross Traffic Alert
Blind Spot Monitor
Parking Assist
Fog Lights
Side-Impact Air Bags
Bluetooth
Satellite Radio
Alloy Wheels
Heated Seats
Leather Seats
Automatic Climate Control
Adaptive Cruise Control
Cruise Control
Remote Start
Push Start
Keyless Entry
Android Auto
Apple Car Play
Wifi Hotspot
Navigation System
Vehicle Description
Meet the 2026 GMC Sierra 2500HD Denali, engineered for serious work and refined for premium comfort. This powerful crew cab delivers the legendary Duramax 6.6L V8 Turbodiesel engine with a 10-speed automatic transmission and 4WD capability, positioned to handle demanding jobs with authority. Finished in striking silver with a supple leather interior, this Denali represents the pinnacle of heavy-duty truck craftsmanship.
- Power-retractable assist steps with LED perimeter lighting
- Engine block heater for convenient cold-weather starts
- Denali Reserve Package with premium appointments
- 22" high-gloss black aluminum wheels with machined accents
- Gooseneck/5th wheel prep package with hitch platform
- Heated and ventilated leather front seats with 12-way power adjustment
- Premium Bose 7-speaker sound system with SiriusXM 360L
- Multicolor 15" head-up display with full surround camera system
- Automatic emergency braking with lane departure warning
- Off-road suspension with hill descent control
The Denali experience extends throughout this Sierra 2500HD with heated steering wheel, wireless phone projection, and Apple CarPlay/Android Auto integration. Advanced safety features include HD surround vision, trailer side blind zone alert, and emergency communication via OnStar. This is a truck built for those who demand both capability and sophistication. Visit our showroom today to experience the commanding presence and refined luxury of this exceptional heavy-duty pickup.
Welcome To
Riverhead Motors
Riverhead · South Hampton · Wading River · East Hampton · Southold
About Our Ford, Mazda, Toyota, and GMC Dealerships
Riverhead Motors, your trusted automotive group serving the Long Island community for years. At Riverhead Motors, we proudly represent four outstanding dealerships: Riverhead Mazda, Riverhead Ford, Riverhead Toyota, and Riverhead GMC. Our commitment to providing exceptional customer service, a wide selection of vehicles, and reliable automotive services has earned us the loyalty of drivers throughout the area. Whether you're in the market for a new or pre-owned vehicle, need maintenance or repairs, or are seeking financing options, Riverhead Motors is here to help you every step of the way.
Vehicle Features
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Interior
- Ventilated driver and front passenger seats
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
- Dual-zone front climate control
- Leather rear seat upholstery
- Automatic climate control
- Manual tilting steering wheel
- Manual telescopic steering wheel
- Rear under seat climate control ducts
- Rear console climate control ducts
- Bucket front seats
- Driver seat with 8-way directional controls
- Front seat center armrest
- Front passenger seat with 8-way directional controls
- Driver seat with 4-way power lumbar
- Front passenger seat with 4-way power lumbar
- Leatherette steering wheel
- Split-bench rear seat
- Fold-up rear seat cushion
- 60-40 folding rear seats
- Aluminum and genuine wood door panel insert
- Rear seat center armrest
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Exterior
- Hitch Guidance vehicle to trailer hitching assist
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Power extendable trailer mirrors
- Trailer hitch light
- Wheel hub covers
- Exterior mirror LED spot lights
- 20 x 8.5-inch front and rear machined w/painted accents aluminum wheels
- LT275/65SR20 AT BSW front and rear tires
- Trailer wiring harness
- Class IV tow rating
- Trailer hitch
- Running boards
- 3 underbody skid plates
- Spray-in pickup bed liner
- Pickup bed-rail protectors
- Full-size spare tire with steel wheel
- Crank-down spare tire
- 2 front tow hooks
- Chrome front bumper insert
- LED in-box lighting
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Mechanical
- AutoTrac part and full-time 4WD
- Driver selectable steering effort
- Allison 10-speed automatic
- Selectable mode transmission
- Sequential shift control
- Automatic
- Four-wheel drive
- Two-Speed Transfer Case
- Off-road ride suspension
- Digital Steering Assist speed sensitive power steering
- Lock-up transmission
- Front mounted engine
- Longitudinal mounted engine
- Iron engine block
- Aluminum cylinder head
- Overdrive transmission
- Transmission oil cooler
- Powertrain type: ICE
- All-speed ABS and driveline traction control
- Electronic transfer case shift
- Independent front suspension
- Short and long arm front suspension
- Front anti-roll bar
- Front torsion springs
- Rancho gas-pressurized shock absorbers
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Safety
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Automatic Emergency Braking brake assist system
- Lane Departure Warning
- Rear Cross-Traffic Alert collision warning
- Teen Driver restricted driving mode/alerts
- HD Surround Vision w/Hitch View aerial view camera
- Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- Gauge cluster display size: 12.30
- Front mounted camera with washer
- Right side camera
- Pickup box camera
- Left side camera
- Trailer Side Blind Zone Alert blind spot warning
- Auto high-beam headlights
- Immobilizer
- Digital/analog instrumentation display
- Configurable instrumentation gauges
- Electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill start assist
- UltraSonic front and rear parking sensors
- LED daytime running lights
- LED brake lights
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Entertainment
- Primary monitor touchscreen
- Bluetooth wireless audio streaming
- Bose speakers
- Premium GMC Infotainment System external memory control
- Internet radio capability
- Voice activated audio controls
- AM/FM/SiriusXM with 360Lsatellite
- 2 total number of 1st row displays
- 13.4 inch primary display
- Amplifier
- 7 speakers
- Seek scan
- 3 month satellite trial subscription
- Fixed audio antenna
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Crash Safety Ratings
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FRONT
5 STAR
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Factory Warranty
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Basic warranty
36 month/36,000 miles
Powertrain warranty
60 month/60,000 miles
Corrosion perforation warranty
72 month/100,000 miles
Roadside warranty
60 month/60,000 miles
Maintenance warranty
12 month/7,500 miles
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Disclaimers
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New vehicle pricing includes all offers and incentives. Tax, Title and Tags not included in vehicle prices shown and must be paid by the purchaser. Some prices may include manufacturer-to-dealer offers that are not compatible with manufacturer special finance programs and/or lease offers. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a customer service rep.
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Based on 2026 EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary depending on how you drive and maintain your vehicle.
All advertised vehicles are subject to actual dealer availability. Certain vehicles listed may not be available, or may have different prices. *All calculated payments are subject to credit approval and include tax, tag, title, and applicable fees. Advertised price excludes tax, tag, registration, title, processing fee and dealer installed accessories. Vehicle option and pricing are subject to change. Prices include all dealer incentives. Pricing and availability varies by dealership. Please check with your dealer for more information. Prices do not include dealer charges, such as advertising, that can vary by manufacturer or region, or costs for selling, preparing, displaying or financing the vehicle. Images displayed may not be representative of the actual trim level of a vehicle. Colors shown are the most accurate representations available. However, due to the limitations of web and monitor color display, we cannot guarantee that the colors depicted will exactly match the color of the car. Information provided is believed accurate but all specifications, pricing, and availability must be confirmed in writing (directly) with the dealer to be binding. Neither the Dealer nor the website provider is responsible for any inaccuracies contained herein and by using this application you the customer acknowledge the foregoing and accept such terms.
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